CINXE.COM

Just a moment...

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.aap.org",cType: 'managed',cRay: '8e92c5e49de4ce4b',cH: 'RCbUysb2t_ZYPwHoyjjHrhq4NaK9OAa5PXQovDvgZiM-1732717374-1.2.1.1-MwDosC6PI2_onfJhUU_Q43T2FbCwCEROPbDcaozhvQ8Ua_pLhk63YoBJ_DGp3CZb',cUPMDTk: "\/pediatrics\/article\/111\/4\/844\/63143\/Relative-Weight-and-Race-Influence-Average-Age-at?__cf_chl_tk=71YaDm788v4mkkaSqPr_27xnsk9YH8wPsqmR1figols-1732717374-1.0.1.1-H__ANDhEiEmj329eGsPK_PRP0w_9vM6Jr4NIlQ6qq9A",cFPWv: 'b',cITimeS: '1732717374',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/pediatrics\/article\/111\/4\/844\/63143\/Relative-Weight-and-Race-Influence-Average-Age-at?__cf_chl_f_tk=71YaDm788v4mkkaSqPr_27xnsk9YH8wPsqmR1figols-1732717374-1.0.1.1-H__ANDhEiEmj329eGsPK_PRP0w_9vM6Jr4NIlQ6qq9A",md: "4iM2GoHhXOWcNqCnT01R9lRHgMVwP0HPUFQ_FTSqBMI-1732717374-1.2.1.1-jkx57bULrqIbJ4E6R7bxf5Sanng9B1s1Ys4nQLoGh08hKUn8wU7wv5IBgZmpm_jw6dADvQP6zJspsMBlHh7BTQBJGGuKTOPTS3f3Jjl3OUg_9WNX49T3yrFjhxQpP9RTAyRQpEezH_zK1eUIJj2HfcfVUPIwa5Q_HjfAJO8qzptunGMqDcCwwzO6UKRfM2nxJ8_Cw4y7ouccxkGvLln.Lds8jeiocmUsyt1kcyZN9P9fcsveFkXJyh3Bs2.PReeGKRLMtBwz6C4l2owdK_OtkH2o1xpR74PmxphOBYXZOMeoqr2VMmD5s4EFioOtfiWFLyDCehNkc32yXiZuayOwMfoF9ajB6j63nEH5PYwqiritqiGpSuLeV1djLrpuzg2pHAlwGKYdc7G40_pXsk7wqZCSajaDDN2nruZuT7RVwOs2tAylHB.JpwQK70vuPqg9VLC_DgTZDdT.6FLFhTJW6pkkd7KR6oQEsHBhj1_u6A0NyU2Uzk7Iw.Ofk_PQPFJwFxCnXf5trZuED4raoBkUed8C82Nw.75ilBfyf._FyGJ8JcHiEfzbGt2TtHMfbdVe8qLF4TO0x7IzaQWvVYWUuoKyL3LDVWJ3fQVAE.bxixyEqWBIY8bfrCiOcNWsLZ6Ers7FyZmqIhPvtLsIIJfRIkpii68xs7mmLWDm.Id9t577NsYRE_n6DN0kRlWDGH5OUsLddcRxeZbPeoY_k0XTgd.9XAYGE1pSmgLcLa4piRslWiSrl2uu4HazRZNqaOr2L5bg0YoGkzrtMDL.NRiJ3H0fupfVABxfP7_eV.uzRId3b8M2je2NGL0Zks.6DVJ0I5E6_lrLswZORBqW9YCy2g0TOqw.CZiUoPW_.bqkcLRTbh.26Bfr9vPbZEcrAnNDJl85MSLwqUS_g4nlFGLo5uNmF0gif468lamgwP1ZXqTkhz_nJvfbSXahn8TmHLqamZh9Hy3mqCoU3bJD2UdIwFWolLoaKsyjYklwU0vIjcaHYzFFtAuBammqMWO1UjfSL2mx4MwR6X2BPfd3mQDf6zEenOa.b4fqM3tVzHDaZ..HoJggdFvDW98L273swY.7xajat4PRCkxWhbtQQYi5oECfpQ6qP47xZeFiSq_lxFnM6pbsVDedoXwNsJWYbPNLOR2PJBIBTMMlZv66jcZMYketSh6i.KeJSEPUvSciMA3LGoq.9JR0EEvSCU7zdInqqXAwFM7RYVRm5atr_VZWBc10U1dq5xRQ5arclEJ3aH9JYal5qo3CERzE.RkJVgmnsoPmBXz2evGDr2Z3DaxVd8.dfFi3AzfR93SOnwGpWV5NQW4Gn1fSLr2UjIEVi5_pPeHoLjGcg1Jj3WoG7QDmfVYbXfl2Jah34QkuCzbwbDDZ1tzByEMa0FqphXYWy3LrDyrcHHQMM7J7wXBtPNLray.JSJYMdP4LkZXQLP3Gzv2ya7ihigX2qgXxJob_EkCwysE4ZIKdQGNEUE_5mtlXwwBiMgAVccHiopeHVoy3qjR2NTJXk7r7PmUJXD7GXp2kF1K6.ipNmzs_8mjsJ1gPC0gLgFTTbBaarISIc3o_mLs_xlIa3OEBbLtUuX9N8K8rJf6.Z3L5P67jqce1PlaHkJ3B7wMVoHy2tiAbHWUX2dVNzI07iY3gElJgUYDVCnVFVpGSW9Jne3tChKIvaYQEEpd1hjQM..JUKPVSr1F.zEts4RO678553dYEHCISD2KcdP55ww4jGze9ZQvwxkZz8uzZGFpSXLoZu8zi7KewqlbvNd7PdqHqomeC5aCO5eVn05cOhjrhcscEpJTtcwgGAPmQojMge.ZMk1TVbVE98OSCmvPxrzzGk0bhfTXXibDn.OI.gMdcAMM4USZHP3545NbtGh3kMdODxBGRsvOBQzQRp1KUWaGyrIjH1MGZ3gLfg0A87ILigAEI4JYpgIclNLgVOVCoXSzzX8YauiK7vbv9dAq.GSeuAG57lvsH8GjEgvJ54DRvbPSss_vElsLCHtrhyAsroMJT.TyPus.m_zIANtnQSUU9l1fWASYTdVHRUzd5CBTcgJ0nMsXgB8nG1thIY5nSc1JQVzgsKLIRLQoXQCJJvi8sr84Ty3E2dFstvnbawdN1XXvnpKzu90pOkkWeg5XZN.MYbzb2LkLRaGoCU4BlChIYPcUev8WrPTQSeJmGq8ApwsaHKg02jqGEjHaiTgyhZ3lBHs2TvAx1Ym.5MDn0NrfPuTMdBjhgisICPe4MJEAXft3.x8IzWt6SBuqeyMkyNjgDC2KNP7MHAqAQsCMGTLRuVPWbp82mfJAgFNHX59P8qw0N5ps5CDTJh.b1jrgb.jB65h6bptoPiyUcgFc9nH_r2b.9j36nO1U5PnwvlrjXub9aMNXxL7Yo.5db1uKUMQYUsAh2mqVDSURjRgC8dKiiugfBLOWw4tlBtnOHt8EBdJ5DjnUEwITd_Wpqc4G1SEnszLl7ObvKDfL7LowNr3mCzW4u43zrEoTsr2WiADeWQ._8p1FIuGds0XWmBsP_E.x8Ej11704K_Vsw4Fr5S6QU82z_iIi9JAFPL2RXBML.G6f4DMsafQbAsZiuAqnfXWGc63NiqGVBW0.PUHsuvw1NXFZiD5yh6ZQSOxuWbcSugj6UWL1vKmb7KEF1vvIWVLDgFd6yOxy58JdPrS2caLYBGnvE1sS5N7tssZjo8rovi9Xx_NSlW25G9QFcf_F76d6Zue1CVx_czv8npHgjW1Pn7GYBts4rySzc3k3lCb3WVIMkwX5pS7S3UTHTMuLyXx5bU7pq_lV3zZaGMFGAZUc3L.HVCYPea8.iUzJnOiWNABRq7Yb7__xxVHPKnfH96bGxs4Ylx2SjafYvlTmw2PKZlP1cOrbHMYcaDC4PzdexlabybuzMM_HLPo3ILkaiM0i0yqGeOYigf7.h.yaCGBsJqnQCAurzb1U0ixAsIqIXO1iQUA9tFXGdVcSbs43OzhBsClFa7.RthYv8kENPMMAH9jtd4xUglsxsBTM7uqc4SbFldCdS4OIqfbUjbcAsZPMay56J.8Zf0XNVy91BAVprXMMeG6cj3TjL0bOA8T_gLIibi.AGoi5OOAFOcFNB3mqm4ye9AA_CsKjxNKoq38NAlePtFOyQkVr8",mdrd: "buq_zDwTJde6xk.CZpzQNMa0qMeaCKH4hqxnNP5xNmw-1732717374-1.2.1.1-J5ILcBrB7wghJSfCb5JGYSF6qK0OuVQr1uKMsIUv54rJ6uzWKXnsY6M6irg3b5EvgnVifJgnZ2yilGCxtW5QVpCorr7Y6t9fcy6BhVAdNkLBu91OeM5NMBRRiItcJuJi.qrev8P55Ud96zhsZnJbqkJvkdnntT1lE8woJodAm2P4ckQhEAHVQAg0mdxR7Oel.BvNAXLiSHiKtEnzYYMtl3F.5zu2PYgepOCEdcIbLyA0EqRx0LpBdmvp5eopOCQd4CB4vnho_dSpyMfhno3Zuc3TcKA2Gnoxact5Azp.SbdGGdwp.p_.j58Tq3viHLceTrPsvNBNBWN9WSAd14s2oFCpUv1zlx1jgiPyXAgpBZVdvXTjWEwdpjxMA1HOFYCq42ywOOxladUkw1Sn9jSuQIDkB0urX6XxJOWMW5gY67Xeciie5SQ_l5B6Z7LiyxJzBYEqN1EuGMDyVAlBH.PUnRY4PXLtFbk2p0Uzvn9hEdT7ITiEmSPR2ce1SmBivZbbCPJ8kXFZ6vcK8LQpj4qCutLLI9IsBhNQuAyn2DwHO.IpKehNetkeCvG__LnpXBYfDKyz3CRvO0MFbrg7ISWGDrQVW4OO.hJhXFCmM8YWjQy4uPDd3srplt6kYQtxM8lnSK2DdQ43_8HYuwIQSGS2zg8_bTrKL.BAgptv7C1FyH0934PD_xrpRSGFvjJsnFh4cKcOvoqJkejAp5JMqUSVzWsjG5Tm9nJfGA2SWM0yJID04raCCGoRDPcbgfonya05IXjZ_XNvkStg8Xm.SbYBntM7NxyNm0kNBaHoYOHpZP43DcLjejTK7Tjym17StBeX6nElDcLdHakVwekQxU1gUDrh61o7eQ9hAoMaINkWAbVDrmGnnWgiPhu0gsl.dszZGjoCWndqOdHgmz8yvcWlHXreFME2xTRWsZ4gWBLAm13HzaUbUZrekj0WxOTD8nOq4OKgsQSIsuvJdXiJIXEYYkNRtHAnvvmsTcUsSkwJRV3VimSL8qVmBlewH5rDATCPHeAyRouFxtP1t7dmer8tc0S6GbyjQLOyGEWTMCamp3kOzsrgTrBiwhK9ri5qbe2V1M5EOvt.sIuq3795fr20N_ukAZv6Wob_l2vQH2vYZsIjVYLrQNk.COP28ewQiW1x58PFVW7wt8JS2WciAS.OIQXx.l6JEY9npuqZFgdqdg02FYakjQDcrxZPLgLBQnCuotArY08bYMqRbuy1BOZGf1LwsFPznKRvjYgHL_IzcQoIVtOapq8qRZrEaWUPSuddKKdLx5RpyYUXs5K8IkwJ1S1kbyV93aspDm9aU1UKMZsUyjsf2jxOSd1jn8gagbLtXEJpkvWxOzbpe1CFCzykLpJbqTE_8ZLRZMVkdt40YsEQpN7AQ4iy5w_mI5Dm4HxwUMqrIUSfLS8V5bnpNrVGqFQS.WnNL0X3c5TI9QAIfwTIUuQ_S17XH14cXGkbRfP0uxMdgjlFHfJXszhI8gyrK_dmAvVRG0XnuMaDc_VoObVS9f9u7kLiXxbSqmYpUGhhxALJAP_ekdUn7y7PddNwgL_OzUiqRo.O0Gy77LNmPM.l8PB3CKI58HwfOyjq7ObbuamOAXmtZEFiXvkFFD1Bt6IhFUvj_4zJ0hEE5oA4gScNqD_CQeTTO6UJHJPObvuiTwo6fThFYP5J0saON8JWZ1kkiToNFrzF0.jd2nDFVDdpOHdsBpepqxQFR8jYrsxFr_xrBPn.8exOb5pW01lZq1npU2.rOyxjh9QBOV.kn5MQCfAdOXdgjEBFOp7eEiIXYGHcCiisleI6NBhP.zh61FZSDqkHyQVo5xmMXu0DscrY2F_GFvujOyRo5o3I7yPouawsy0khUxwYLn6QDmYpD7O6qrfKmmhciy.HgbwlFkWvfaGibOMXO3IHUpaM6oKahHnZptZMT_HJ9z0WmYKF.bzaHkQi7.lDQELnGfE0CNc"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=8e92c5e49de4ce4b';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/pediatrics\/article\/111\/4\/844\/63143\/Relative-Weight-and-Race-Influence-Average-Age-at?__cf_chl_rt_tk=71YaDm788v4mkkaSqPr_27xnsk9YH8wPsqmR1figols-1732717374-1.0.1.1-H__ANDhEiEmj329eGsPK_PRP0w_9vM6Jr4NIlQ6qq9A" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>