{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,28]],"date-time":"2026-10-28T21:34:57Z","timestamp":1793223297076,"version":"4.5.0"},"reference-count":51,"publisher":"American Academy of Pediatrics (AAP)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2010,9,1]]},"abstract":"<jats:sec>\n                  <jats:title>OBJECTIVES:<\/jats:title>\n                  <jats:p>The objective of this study was to describe the assessment methods and maturation status for a multisite cohort of girls at baseline recruitment and at ages 7 and 8 years.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>METHODS:<\/jats:title>\n                  <jats:p>The method for pubertal maturation staging was developed collaboratively across 3 sites. Girls at ages 6 to 8 years were recruited at 3 sites: East Harlem, New York; greater Cincinnati metropolitan area; and San Francisco Bay area, California. Baseline characteristics were obtained through interviews with caregivers and anthropometric measurements by trained examiners; breast stage 2 was defined as onset of pubertal maturation. The \u03ba statistic was used to evaluate agreement between master trainers and examiners. Logistic regression models were used to identify factors that are associated with pubertal maturation and linear regression models to examine factors that are associated with height velocity.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>RESULTS:<\/jats:title>\n                  <jats:p>The baseline cohort included 1239 girls. The proportion of girls who had attained breast stage 2 varied by age, race\/ethnicity, BMI percentile, and site. At 7 years, 10.4% of white, 23.4% of black non-Hispanic, and 14.9% of Hispanic girls had attained breast stage \u22652; at 8 years, 18.3%, 42.9%, and 30.9%, respectively, had attained breast stage \u22652. The prime determinant of height velocity was pubertal status.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>CONCLUSIONS:<\/jats:title>\n                  <jats:p>In this multisite study, there was substantial agreement regarding pubertal staging between examiners across sites. The proportion of girls who had breast development at ages 7 and 8 years, particularly among white girls, is greater than that reported from studies of girls who were born 10 to 30 years earlier.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1542\/peds.2009-3079","type":"journal-article","created":{"date-parts":[[2010,8,10]],"date-time":"2010-08-10T02:04:35Z","timestamp":1281405875000},"page":"e583-e590","source":"Crossref","is-referenced-by-count":295,"title":["Pubertal Assessment Method and Baseline Characteristics in a Mixed Longitudinal Study of Girls"],"prefix":"10.1542","volume":"126","author":[{"given":"Frank M.","family":"Biro","sequence":"first","affiliation":[{"name":"Division of Adolescent Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maida P.","family":"Galvez","sequence":"additional","affiliation":[{"name":"Department of Community and Preventive Medicine, Mount Sinai School of Medicine, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Louise C.","family":"Greenspan","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Kaiser Permanente, San Francisco, California;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul A.","family":"Succop","sequence":"additional","affiliation":[{"name":"Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nita","family":"Vangeepuram","sequence":"additional","affiliation":[{"name":"Department of Community and Preventive Medicine, Mount Sinai School of Medicine, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan M.","family":"Pinney","sequence":"additional","affiliation":[{"name":"Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan","family":"Teitelbaum","sequence":"additional","affiliation":[{"name":"Department of Community and Preventive Medicine, Mount Sinai School of Medicine, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gayle C.","family":"Windham","sequence":"additional","affiliation":[{"name":"California Department of Public Health, Richmond, California; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lawrence H.","family":"Kushi","sequence":"additional","affiliation":[{"name":"Division of Research, Kaiser Permanente Northern California, Oakland, California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary S.","family":"Wolff","sequence":"additional","affiliation":[{"name":"Department of Community and Preventive Medicine, Mount Sinai School of Medicine, New York, New York;"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"417","published-online":{"date-parts":[[2010,9,1]]},"reference":[{"issue":"1","key":"2021121009442521700_B1","doi-asserted-by":"crossref","first-page":"272","DOI":"10.1111\/j.1365-2605.2005.00602.x","article-title":"Influence of obesity on timing of puberty","volume":"29","author":"Biro","year":"2006","journal-title":"Int J Androl"},{"issue":"5","key":"2021121009442521700_B2","doi-asserted-by":"crossref","first-page":"636","DOI":"10.1067\/mpd.2001.114476","article-title":"Impact of timing of pubertal maturation on growth in black and white female adolescents: The National Heart, Lung, and Blood Institute Growth and Health Study","volume":"138","author":"Biro","year":"2001","journal-title":"J Pediatr"},{"issue":"4 pt 1","key":"2021121009442521700_B3","doi-asserted-by":"crossref","first-page":"815","DOI":"10.1542\/peds.111.4.815","article-title":"Percent body fat at age 5 predicts earlier pubertal development among girls at age 9","volume":"111","author":"Davison","year":"2003","journal-title":"Pediatrics"},{"key":"2021121009442521700_B4","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1186\/1471-2431-3-3","article-title":"The relation of menarcheal age to obesity in childhood and adulthood: the Bogalusa Heart Study","volume":"3","author":"Freedman","year":"2003","journal-title":"BMC Pediatr"},{"issue":"2","key":"2021121009442521700_B5","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1542\/peds.108.2.347","article-title":"Earlier onset of puberty in girls: relation to increased body mass index and race","volume":"108","author":"Kaplowitz","year":"2001","journal-title":"Pediatrics"},{"issue":"5","key":"2021121009442521700_B6","doi-asserted-by":"crossref","first-page":"903","DOI":"10.1542\/peds.110.5.903","article-title":"Is obesity associated with early sexual maturation? 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