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. Author manuscript; available in PMC: 2016 Nov 8.
Published in final edited form as: J Bone Miner Res. 2010 Sep;25(9):1948–1957. doi: 10.1002/jbmr.95

Table 1.

Baseline Characteristics by Gender and Cohort

Women (n = 615)
Men (n = 527)
Youth cohort (16 to 24) Original cohort (25 to 40) Youth cohort (16 to 24) Original cohort (25 to 40)
N 328 287 292 235
White 88.7% 94.1% 88.4% 94.0%
Currently smoking 7.0% 20.6% 12.3% 23.4%
Regular activity 65.2% 54.0% 69.5% 57.9%
Previous fractures 32.3% 33.1% 43.5% 53.6%
Agea (years) 19.6 (2.7) 33.9 (4.3) 19.4 (2.5) 33.4 (4.2)
Menarchea (years) 12.5 (1.3) 12.7 (1.5)
Heighta (cm) 164.7 (6.6) 163.1 (6.1) 178.0 (7.2) 177.2 (7.2)
Weighta (kg) 62.1 (11.9) 68.2 (16.3) 77.5 (15.7) 82.6 (14.0)
BMIa (kg/m2) 22.9 (4.2) 25.6 (5.8) 24.4 (4.7) 26.2 (3.8)
a

Reported as mean (SD).