Table 4.

Association between serum sex hormone levels and sperm progressive motility^a

Sex hormone	n	Progressive motility (%)
		Least-squares mean (95% CI)	P	P for trend
Luteinizing hormone
Tertile 1	112	30.0(27.6, 32.4)	Ref	0.04
Tertile 2	114	27.8(25.5, 30.2)	0.20
Tertile 3	112	26.5(24.1, 28.9)	0.04
Follicle-stimulating hormone
Tertile 1	112	28.9(26.5, 31.3)	Ref	0.14
Tertile 2	114	29.1(26.7, 31.4)	0.94
Tertile 3	112	26.4(24.0, 28.8)	0.14
Total testosterone
Tertile 1	96	29.6(26.9, 32.3)	Ref	0.22
Tertile 2	97	28.3(25.7, 30.8)	0.48
Tertile 3	97	27.1(24.4, 29.9)	0.23
Free testosterone
Tertile 1	96	30.3(27.6, 32.9)	Ref	0.05
Tertile 2	97	28.2(25.7, 30.8)	0.28
Tertile 3	97	26.5(23.9, 29.2)	0.06
Total estradiol
Tertile 1	113	28.4(26.0, 30.7)	Ref	0.69
Tertile 2	115	28.3(26.0, 30.7)	0.98
Tertile 3	110	27.7(25.2, 30.1)	0.69
Free estradiol
Tertile 1	96	28.16(25.6, 30.7)	Ref	0.35
Tertile 2	97	30.5(27.9, 33.1)	0.21
Tertile 3	97	26.4(23.8, 28.9)	0.34
Sex hormone-binding hormone
Tertile 1	112	27.6(25.0, 30.1)	Ref	0.26
Tertile 2	113	27.2(24.8, 29.6)	0.85
Tertile 3	113	29.6(27.1, 32.0)	0.29

^aGeneral linear models were adjusted for age at sample collection, BMI (continuous), current smoking (yes or no), and current alcohol consumption (yes or no). P for trend was calculated by treating hormone categories as ordinal predictors in multivariate linear regression models