CINXE.COM

Behind the Numbers:                                                                    The PRB blog on population, health, and the environment » Blog Archive » To Tell the Truth…With Statistics!: Aggregates and Averages

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head profile="http://gmpg.org/xfn/11"><script type="text/javascript" src="https://web-static.archive.org/_static/js/bundle-playback.js?v=7YQSqjSh" charset="utf-8"></script> <script type="text/javascript" src="https://web-static.archive.org/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="https://web-static.archive.org/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://prbblog.org:80/?p=47","20090331185656","https://web.archive.org/","web","https://web-static.archive.org/_static/", "1238525816"); </script> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/banner-styles.css?v=p7PEIJWi" /> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/iconochive.css?v=3PDvdIFv" /> <!-- End Wayback Rewrite JS Include --> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <script type="text/JavaScript"> <!-- function MM_preloadImages() { //v3.0 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array(); var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++) if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}} } function MM_swapImgRestore() { //v3.0 var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc; } function MM_findObj(n, d) { //v4.01 var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) { d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);} if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n]; for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); if(!x && d.getElementById) x=d.getElementById(n); return x; } function MM_swapImage() { //v3.0 var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3) if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];} } //--> </script> <title>Behind the Numbers:                                                                    The PRB blog on population, health, and the environment &raquo; Blog Archive &raquo; To Tell the Truth&#8230;With Statistics!: Aggregates and Averages </title> <meta name="generator" content="WordPress 2.3.3"/> <!-- leave this for stats --> <link rel="stylesheet" href="https://web.archive.org/web/20090331185656cs_/http://prbblog.org/wp-content/themes/prb-blog/style.css" type="text/css" media="screen"/> <link rel="alternate" type="application/rss+xml" title="Behind the Numbers:                                                                    The PRB blog on population, health, and the environment RSS Feed" href="https://web.archive.org/web/20090331185656/http://prbblog.org/?feed=rss2"/> <link rel="pingback" href="http://prbblog.org/xmlrpc.php"/> <meta name="type" content="Section"> <meta name="language" content="english"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="CODE_LANGUAGE" content="C#"/><meta name="vs_defaultClientScript" content="JavaScript"/><meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5"/> <link rel="SHORTCUT ICON" href="https://web.archive.org/web/20090331185656im_/http://www.prb.org/favicon.ico"/></head> <link rel="EditURI" type="application/rsd+xml" title="RSD" href="http://prbblog.org/xmlrpc.php?rsd"/> <link rel="wlwmanifest" type="application/wlwmanifest+xml" href="http://prbblog.org/wp-includes/wlwmanifest.xml"/> <style type="text/css">.recentcomments a{display:inline !important;padding: 0 !important;margin: 0 !important;}</style> </head> <body> <script type="text/javascript"> <!-- var theForm = document.forms['Form1']; if (!theForm) { theForm = document.Form1; } function __doPostBack(eventTarget, eventArgument) { if (!theForm.onsubmit || (theForm.onsubmit() != false)) { theForm.__EVENTTARGET.value = eventTarget; theForm.__EVENTARGUMENT.value = eventArgument; theForm.submit(); } } // --> </script> <!-- Start Header Block --> <!--googleoff: all--> <div align="center" style="margin-top: -20px;"> <div id="hdr"> <div align="left"> <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Bookstore.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/header/bookstore.gif" alt="Bookstore" width="120" height="50" border="0"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Contact.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/header/contact.gif" alt="Contact" width="50" height="50" border="0"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Spanishtemplate.cfm"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/header/espanol.gif" alt="Espanol" width="45" height="50" border="0"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Frenchtemplate.cfm"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/header/francais.gif" alt="Francais" width="60" height="50" border="0"/></a> </div> <div class="cartbox"></div> </div> <div id="hdr2"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/header/prebanner.gif" width="22" height="74"/><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/header/banner1.gif" alt="PRB" width="318" height="74"/><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/header/banner2.gif" width="345" height="74"/><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/header/banner3.gif" width="297" height="74"/></div> <div id="hdr3"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/prenav.gif" width="56" height="26"/><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Home.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/home_off.gif" alt="Home" name="home" width="52" height="26" border="0" id="home" onmouseover="MM_swapImage('home','','https://web.archive.org/web/20090331185656/http://www.prb.org/images/nav/home_over.gif',1)" onmouseout="MM_swapImgRestore()"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Datafinder.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/datafinder_on.gif" alt="Datafinder" name="datafinder" width="91" height="26" border="0" id="datafinder"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Educators.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/educators_off.gif" alt="Educators" name="educators" width="88" height="26" border="0" id="educators" onmouseover="MM_swapImage('educators','','https://web.archive.org/web/20090331185656/http://www.prb.org/images/nav/educators_over.gif',1)" onmouseout="MM_swapImgRestore()"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Journalists.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/journalists_off.gif" alt="Journalists" name="journalists" width="101" height="26" border="0" id="journalists" onmouseover="MM_swapImage('journalists','','https://web.archive.org/web/20090331185656/http://www.prb.org/images/nav/journalists_over.gif',1)" onmouseout="MM_swapImgRestore()"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/EventsTraining.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/events_off.gif" alt="Events &amp; Training" name="events" width="136" height="26" border="0" id="events" onmouseover="MM_swapImage('events','','https://web.archive.org/web/20090331185656/http://www.prb.org/images/nav/events_over.gif',1)" onmouseout="MM_swapImgRestore()"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Publications.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/publications_off.gif" alt="Publications" name="pubs" width="104" height="26" border="0" id="pubs" onmouseover="MM_swapImage('pubs','','https://web.archive.org/web/20090331185656/http://www.prb.org/images/nav/publications_over.gif',1)" onmouseout="MM_swapImgRestore()"/></a><a href="https://web.archive.org/web/20090331185656/http://www.prb.org/About.aspx"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/about_off.gif" alt="About PRB" name="about" width="84" height="26" border="0" id="about" onmouseover="MM_swapImage('about','','https://web.archive.org/web/20090331185656/http://www.prb.org/images/nav/about_over.gif',1)" onmouseout="MM_swapImgRestore()"/></a><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/nav/navend.gif" width="270" height="26"/></div> </div> <br><br><center><table width="960" cellspacing="0" cellpadding="0"><tr><td> <!--googleon: all--> <div id="wrap"> <div id="header"><h1><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/">Behind the Numbers:                                                                    The PRB blog on population, health, and the environment</a></h1></div> <div class="hr"><!-- --></div> <div class="hr2"><!-- --></div><div class="left"> <h2 class="widgettitle">Authors</h2> <ul> <li class="widget widget_authors"> <ul><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=4" title="Posts by Bill Butz">Bill Butz</a> (7)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=6" title="Posts by Carl Haub">Carl Haub</a> (3)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=11" title="Posts by Charlie Teller">Charlie Teller</a> (2)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=14" title="Posts by Deborah Mesce">Deborah Mesce</a> (1)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=10" title="Posts by Eric Zuehlke">Eric Zuehlke</a> (1)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=13" title="Posts by Jason Bremner">Jason Bremner</a> (3)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=16" title="Posts by Jay Gribble">Jay Gribble</a> (1)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=17" title="Posts by Marissa Yeakey">Marissa Yeakey</a> (1)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=12" title="Posts by Mark Mather">Mark Mather</a> (2)</li><li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?author=15" title="Posts by Victoria Ebin">Victoria Ebin</a> (1)</li></ul> </li> </ul> <ul> <li id="categories-1" class="widget widget_categories"><h2 class="widgettitle">Topics</h2> <ul> <li class="cat-item cat-item-3"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=3" title="Blog on the PRB topic- Education">Education</a> (1) </li> <li class="cat-item cat-item-4"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=4" title="Blog on the PRB topic of Environment">Environment</a> (4) </li> <li class="cat-item cat-item-5"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=5" title="Blog on the PRB topic of Gender">Gender</a> (2) </li> <li class="cat-item cat-item-7"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=7" title="Blog on the PRB Topic of Immigration/Migration">Immigration/Migration</a> (1) </li> <li class="cat-item cat-item-8"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=8" title="Blog on the topic of Income/Poverty">Income/Poverty</a> (2) </li> <li class="cat-item cat-item-9"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=9" title="Blog on the topic of Marriage Family">Marriage/Family</a> (1) </li> <li class="cat-item cat-item-10"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=10" title="Blog about the topic of Population basics">Population Basics</a> (9) </li> <li class="cat-item cat-item-31"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=31" title="View all posts filed under PRB News">PRB News</a> (7) </li> <li class="cat-item cat-item-12"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=12" title="Blog on the topic of reproductive health ">Reproductive Health</a> (4) </li> <li class="cat-item cat-item-13"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=13" title="Blog on the topic of Youth">Youth</a> (1) </li> </ul> </li> <li id="tag_cloud" class="widget widget_tag_cloud"><h2 class="widgettitle">Tags</h2> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=census" class="tag-link-39" title="4 topics" style="font-size: 22pt;">census</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=contraception" class="tag-link-53" title="1 topics" style="font-size: 8pt;">contraception</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=education" class="tag-link-3" title="1 topics" style="font-size: 8pt;">Education</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=engage" class="tag-link-55" title="1 topics" style="font-size: 8pt;">ENGAGE</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=ethiopia" class="tag-link-41" title="2 topics" style="font-size: 12.666666666667pt;">Ethiopia</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=europe" class="tag-link-46" title="1 topics" style="font-size: 8pt;">Europe</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=evaluation" class="tag-link-48" title="1 topics" style="font-size: 8pt;">evaluation</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=family-planning" class="tag-link-27" title="2 topics" style="font-size: 12.666666666667pt;">family&nbsp;planning</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=fertility" class="tag-link-45" title="2 topics" style="font-size: 12.666666666667pt;">fertility</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=food" class="tag-link-32" title="1 topics" style="font-size: 8pt;">food</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=journalism" class="tag-link-42" title="2 topics" style="font-size: 12.666666666667pt;">journalism</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=kenya" class="tag-link-54" title="1 topics" style="font-size: 8pt;">Kenya</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=malnutrition" class="tag-link-33" title="1 topics" style="font-size: 8pt;">malnutrition</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=migrants" class="tag-link-36" title="1 topics" style="font-size: 8pt;">migrants</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=pakistan" class="tag-link-52" title="1 topics" style="font-size: 8pt;">Pakistan</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=photos" class="tag-link-51" title="3 topics" style="font-size: 17.333333333333pt;">photos</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=policy" class="tag-link-30" title="1 topics" style="font-size: 8pt;">policy</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=population-growth" class="tag-link-38" title="1 topics" style="font-size: 8pt;">population&nbsp;growth</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=poverty" class="tag-link-29" title="1 topics" style="font-size: 8pt;">poverty</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=prb-in-the-field" class="tag-link-50" title="4 topics" style="font-size: 22pt;">PRB&nbsp;in&nbsp;the&nbsp;field</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=rwanda" class="tag-link-56" title="2 topics" style="font-size: 12.666666666667pt;">Rwanda</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=statistics" class="tag-link-44" title="4 topics" style="font-size: 22pt;">statistics</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=tanzania" class="tag-link-49" title="1 topics" style="font-size: 8pt;">tanzania</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=us" class="tag-link-40" title="2 topics" style="font-size: 12.666666666667pt;">U.S.</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=video" class="tag-link-37" title="1 topics" style="font-size: 8pt;">video</a> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?tag=women" class="tag-link-43" title="1 topics" style="font-size: 8pt;">women</a></li> <li id="recent-posts" class="widget widget_recent_entries"> <h2 class="widgettitle">Recent Posts</h2> <ul> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=50">PRB in the Field: Population, Health, and Environment in Rwanda, part 2 </a></li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=49">PRB in the Field: Population, Health, and Environment in Rwanda, part 1 </a></li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=48">PRB in the Field: Building political will for family planning in Kenya </a></li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=47">To Tell the Truth&#8230;With Statistics!: Aggregates and Averages </a></li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=46">PRB in the Field: A Study Tour on Reproductive Health for Tanzanian Journalists </a></li> </ul> </li> <li id="archives" class="widget widget_archives"><h2 class="widgettitle">Archives</h2> <ul> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?m=200903" title="March 2009">March 2009</a>&nbsp;(4)</li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?m=200902" title="February 2009">February 2009</a>&nbsp;(1)</li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?m=200901" title="January 2009">January 2009</a>&nbsp;(6)</li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?m=200812" title="December 2008">December 2008</a>&nbsp;(3)</li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?m=200811" title="November 2008">November 2008</a>&nbsp;(3)</li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?m=200810" title="October 2008">October 2008</a>&nbsp;(5)</li> </ul> </li> </ul> </div> <div class="right"> <ul> <li> <h2 class="widgettitle">Blog Search</h2> <div id="search"><form method="get" id="searchform" action="https://web.archive.org/web/20090331185656/http://prbblog.org/"> <div><input type="text" value="" name="s" id="s"/> <input type="submit" id="searchsubmit" value="Go"/> </div> </form> </div> <div style="clear: both;"><!-- --></div> </li> <li id="text-1" class="widget widget_text"> <h2 class="widgettitle">About the PRB Blog</h2> <div class="textwidget"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?page_id=2">The PRB blog is....</a> </div> </li> <li id="recent-comments" class="widget widget_recent_comments"> <h2 class="widgettitle">Recent Comments</h2> <ul id="recentcomments"><li class="recentcomments"><a href="https://web.archive.org/web/20090331185656/http://www.classiccreations.ca/" rel="external nofollow">Daniel</a> on <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=32#comment-105">To Tell the Truth…With Statistics!: Population</a></li><li class="recentcomments"><a href="https://web.archive.org/web/20090331185656/http://weblogs.hitwise.com/" rel="external nofollow">Heather Hopkins</a> on <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=34#comment-87">Will the Economic Downturn Lower Birth Rates?</a></li><li class="recentcomments">Gerald M. Levitis on <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=30#comment-84">Where Are the Missing Three Million Ethiopians from the New Census: In Washington DC, in the Middle East or Hiding?</a></li><li class="recentcomments">Rebecca W on <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=43#comment-33">To Tell the Truth…With Statistics!: Affirmation from the Top</a></li><li class="recentcomments"><a href="https://web.archive.org/web/20090331185656/http://sustainabilitysoutheast.org/index.php" rel="external nofollow">Steven Earl Salmony</a> on <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=42#comment-25">To Tell the Truth…With Statistics!: Poverty</a></li></ul> </li> <li id="links" class="widget widget_links"><h2 class="widgettitle">Blogroll</h2> <ul> <li><a href="https://web.archive.org/web/20090331185656/http://blogs.cgdev.org/globalhealth/">Center for Global Development: Global Health Policy Blog</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://blogs.cgdev.org/globaldevelopment/">Center for Global Development: Views from the Center</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://demographymatters.blogspot.com/">Demography Matters</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://www.globaldashboard.org/">Global Dashboard: Notes from the Future</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://gsionline.csis.org/">Global Strategy Institute Online</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://globalhealth.sais-jhu.edu/">Johns Hopkins University: Global Health and Foreign Policy Blog</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://geography.about.com/b/">Matt&#8217;s Geography Blog</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://dotearth.blogs.nytimes.com/">New York Times: Dot Earth Blog</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://populationaction.org/blog/">Population Action International blog</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://www.prcdc.org/blog/">Population Resource Center: Population Counts</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://thecityfix.com/">The City Fix</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://newsecuritybeat.blogspot.com/">The New Security Beat</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://earthtrends.wri.org/">World Resources Institute: EarthTrends</a></li> </ul> </li> <li id="meta" class="widget widget_meta"> <h2 class="widgettitle">Meta</h2> <ul> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/wp-login.php">Login</a></li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?feed=rss2" title="Syndicate this site using RSS 2.0">Entries <abbr title="Really Simple Syndication">RSS</abbr></a></li> <li><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?feed=comments-rss2" title="The latest comments to all posts in RSS">Comments <abbr title="Really Simple Syndication">RSS</abbr></a></li> <li><a href="https://web.archive.org/web/20090331185656/http://wordpress.org/" title="Powered by WordPress, state-of-the-art semantic personal publishing platform.">WordPress.org</a></li> </ul> </li> </ul> </div> <div class="middle"> <div class="post" id="post-47"> <h2><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=47" rel="bookmark" title="Permanent Link: To Tell the Truth…With Statistics!: Aggregates and Averages">To Tell the Truth&#8230;With Statistics!: Aggregates and Averages</a></h2> <p class="postmetadata"><small>March 12th, 2009 Jay Gribble </small> Posted in <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?cat=12" title="View all posts in Reproductive Health" rel="category">Reproductive Health</a> | </p> <div> <p><em>by Jay Gribble, vice president, International Programs</em> </p> <p>I was recently looking at use of family planning methods in Pakistan. According to the recent Pakistan Demographic and Health Survey 2006-07, almost 30 percent of married women of reproductive age (ages 15 to 49) use some form of family planning—either a traditional or modern method. Recent surveys indicate that use of family planning methods has hovered around 30 percent for almost a decade</p> <p>But what does this “30 percent” mean? So often, officials use aggregate numbers as the basis for decisions about policies and programs. But there are many ways to look at what that “30 percent” represents—and many of them could provide valuable insight into how to better serve the reproductive health needs of Pakistani women and couples. Let’s take a look at a few of them.</p> <p>We can consider how the “30 percent” breaks down by type of contraceptive method use. Of the 30 percent of women who use a family planning method, 8 percent use a traditional method and 22 percent use a modern method. If we considered only the group of women who report using any form of family planning, over a quarter (8/30) of them have opted to use a relatively ineffective methods—rhythm and withdrawal are the two most common traditional methods used. When we look at the use of modern methods, the most popular choice is female sterilization. Eight percent of all married women ages 15 to 49 have chosen sterilization; but when considering only women who are using family planning, over a quarter of women have chose sterilization. Condoms are also a popular method and are the choice of 7 percent of all married women ages 15 to 49 ( and the choice of 23 percent of women who use any form of family planning). However, inconsistent use of condoms can lead to unplanned pregnancies. So what does method mix tell us about family planning in Pakistan? It says that not too many women use effective contraception until they are ready to end childbearing. Few women use modern methods for the purpose of spacing pregnancies, which contributes to better health for both mothers and children.</p> <p>Another way to look at the “30 percent” is based on the number of children that a woman already has. In many parts of the world, women use contraception for years after marriage, choosing to start a family when they are ready. In Pakistan, less than 1 percent of women who have no children use family planning. It isn’t until women have three or more children that they really begin to think about family planning. After having five or more children, women opt for sterilization. Most Pakistani women are not using family planning to space pregnancies; if anything, they are using it so that they don’t ever get pregnant again.</p> <p>Finally, one of the most important ways of looking at the “30 percent” is by wealth group. It’s very common for a larger percentage of wealthier women to use family planning than poor women, which is also the case in Pakistan. Among the poor, almost 16 percent use family planning, while 43 percent of women the wealthiest group are using contraception. Among the poor who are using any form of family planning, almost half are sterilized and one third uses another modern method. But the fact that 84 percent of poor women are not using any form of family planning is a very important piece of information to know. Among the wealthy, 31 percent use modern methods and 12 percent rely on ineffective traditional methods. Again, the national average of “30 percent” hides this important variation.</p> <p>Given what we know about high fertility and poverty, we should be thinking more about how to make family planning more accessible to the poor. While the “30 percent” leaves room for improvement, the fact that 84 percent of Pakistan’s poorest women are not using any form of family planning suggests that something must to change.</p> <p>Averages are useful for comparisons, but remember to scratch the surface and see what’s really going on.</p> <br/> <p> <small> <span> You can follow any responses to this entry through the</span> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?feed=rss2&amp;p=47">RSS 2.0</a> <span>feed.</span> <span>You can </span><a href="#respond">leave a response</a>, <span>or</span> <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/wp-trackback.php?p=47" rel="trackback">trackback</a> <span>from your own site.</span> </span></small> </p> </div> <!-- AddThis Bookmark Post Button BEGIN --> <div class="addthis"><a href="https://web.archive.org/web/20090331185656/http://www.addthis.com/bookmark.php?pub=blogohblog&amp;url=http://prbblog.org/?p=47&amp;title=To Tell the Truth…With Statistics!: Aggregates and Averages" title="Bookmark using any bookmark manager!" target="_blank"><img src="https://web.archive.org/web/20090331185656im_/http://s9.addthis.com/button1-bm.gif" width="125" height="16" border="0" alt="AddThis Social Bookmark Button"/></a></div><!-- AddThis Bookmark Post Button END --> </div> <!-- You can start editing here. --> <!-- If comments are open, but there are no comments. --> <div class="comments"><h3>Leave a Reply</h3></div> <form action="https://web.archive.org/web/20090331185656/http://prbblog.org/wp-comments-post.php" method="post" id="commentform"> <p><input type="text" name="author" id="author" value="" size="22" tabindex="1"/> <label for="author"><small>Name (required)</small></label></p> <p><input type="text" name="email" id="email" value="" size="22" tabindex="2"/> <label for="email"><small>Mail (will not be published) (required)</small></label></p> <p><input type="text" name="url" id="url" value="" size="22" tabindex="3"/> <label for="url"><small>Website</small></label></p> <!--<p><small><strong>XHTML:</strong> You can use these tags: <code>&lt;a href=&quot;&quot; title=&quot;&quot;&gt; &lt;abbr title=&quot;&quot;&gt; &lt;acronym title=&quot;&quot;&gt; &lt;b&gt; &lt;blockquote cite=&quot;&quot;&gt; &lt;code&gt; &lt;em&gt; &lt;i&gt; &lt;strike&gt; &lt;strong&gt; </code></small></p>--> <p><textarea name="comment" id="comment" cols="60%" rows="10" tabindex="4"></textarea></p> <p><input name="submit" type="submit" id="submit" tabindex="5" value="Submit Comment"/> <input type="hidden" name="comment_post_ID" value="47"/> </p> </form> <div class="alignleft">&laquo; <a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=46">PRB in the Field: A Study Tour on Reproductive Health for Tanzanian Journalists</a></div> <div class="alignright"><a href="https://web.archive.org/web/20090331185656/http://prbblog.org/?p=48">PRB in the Field: Building political will for family planning in Kenya</a> &raquo;</div> </div> </td></tr></table></center> <!--googleoff: all--> <br/><br/> <div align="center"> <div align="center" id="ftr"><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/footer2.gif" width="3" height="23" align="right"/><img src="https://web.archive.org/web/20090331185656im_/http://www.prb.org/images/footer1.gif" width="3" height="23" align="left"/><span class="footertext">Services: <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Home/EmailSignup.aspx">Get E-Mail News</a> &nbsp;&middot;&nbsp; <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Join.aspx">Join/Renew Membership</a> &nbsp;&middot;&nbsp; <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Donate.aspx">Donate</a> &nbsp;&middot;&nbsp; <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Bookstore.aspx">Bookstore</a> &nbsp;&middot;&nbsp; <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Home/Contact.aspx">Contact</a> &nbsp;&middot;&nbsp; <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/SpanishContent.aspx">Espa&ntilde;ol</a> &nbsp;&middot;&nbsp; <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/FrenchContent.aspx">Fran&ccedil;ais</a></span></div> <span class="footer2text"><b>Copyright 2007, Population Reference Bureau.</b> All rights reserved. &bull; <a href="https://web.archive.org/web/20090331185656/http://www.prb.org/Home/Privacy.aspx">Privacy Policy</a></span><br/> <span class="footer2text">1875 Connecticut Avenue, NW &bull; Suite 520 &bull; Washington, DC 20009-5728 &bull; USA <br/> <b>Phone:</b> 800-877-9881 &bull; <b>Fax:</b> 202-328-3937 &bull; <b>E-mail:</b> <a href="https://web.archive.org/web/20090331185656/mailto:popref@prb.org">popref@prb.org</a></span><br/> </div> <!--googleon: all--> </div> <!-- Google Analytics start --> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? "https://web.archive.org/web/20090331185656/https://ssl." : "https://web.archive.org/web/20090331185656/http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); </script> <script type="text/javascript"> try { var pageTracker = _gat._getTracker("UA-6730966-1"); pageTracker._trackPageview(); } catch(err) {}</script> <!-- Google Analytics finish --> </body> </html> <!-- FILE ARCHIVED ON 18:56:56 Mar 31, 2009 AND RETRIEVED FROM THE INTERNET ARCHIVE ON 18:51:23 Feb 28, 2025. JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE. ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C. SECTION 108(a)(3)). --> <!-- playback timings (ms): captures_list: 0.64 exclusion.robots: 0.033 exclusion.robots.policy: 0.019 esindex: 0.014 cdx.remote: 114.029 LoadShardBlock: 1064.157 (3) PetaboxLoader3.datanode: 129.825 (4) load_resource: 417.579 PetaboxLoader3.resolve: 336.499 -->

Pages: 1 2 3 4 5 6 7 8 9 10