Table 1.

Participant characteristics in YF, YM, and PMF

	YF	YM	PMF	Test Statistic	P Value
Age, yr	25 [5]*	26 [7]*	58 [8]	χ2(2) = 24.737	<0.0005
Height, m	1.67 [0.10]†	1.76 [0.07]	1.67 [0.10]†	χ2(2) = 15.329	<0.0005
Weight, kg	64 [11]†	78 [12]	67 [11]†	χ2(2) = 1.735	0.005
BMI, kg/m2	23.8 ± 1.1	24.7 ± 2.2	24.2 ± 2.5	F(2, 29) = 0.721	0.495
Hormonal contraception use in YF (of n = 12)	None: 4 of 12 OC: 6 of 12 Vaginal ring: 1 of 12 N/A: 1 of 12

Values are represented as means ± SD or medians [interquartile ranges]. BMI, body mass index; OC, oral contraception; N/A, not available; χ, Kruskal–Wallis test statistic; F, ANOVA test statistic. Multiple comparisons for height and weight compared mean ranks. Height, weight, and BMI data available for 11 of 12 premenopausal females (YF), 12 of 12 younger males (YM), and 9 of 13 postmenopausal females (PMF). Group differences tested by univariate ANOVA or Kruskal–Wallis test.

^*P < 0.05 vs. PMF; †P < 0.05 vs. YM (exact P values in text).