Table 5.

Regression coefficients (± standard error) for penile measurements (mm)^a, ^b

	PW		PL
	Coefficient	p value	Coefficient	p value
Birthweight (per kg)	0.77 ± 0.12	<0.001	−0.41 ± 0.50	0.41
Maternal age (per 10 yr)	−0.22 ± 0.09	0.017	−1.06 ± 0.39	0.007
Maternal height (per 10 cm)	0.01 ± 0.06	0.92	0.73 ± 0.27	0.008
Parity		0.16		0.69
1	Reference		Reference
2–3	0.03 ± 0.09		−0.01 ± 0.37
4+	0.36 ± 0.19		0.63 ± 0.82

^aSee list of abbreviations given in first footnote to Table 2. The model results indicate that, e.g., a) for each additional 10 years of mother’s age, PL decreased by 1.06 mm, after adjusting for the other covariates in the model, and b) for each additional 10 cm of maternal height, PL increased by 0.73 mm, after adjusting for the other covariates in the model.

^bModels included all variables shown plus birth length, gestational age, maternal pre-pregnancy BMI, hospital, rural/urban, education, marital status, household income per capita and random effect of anthropometrist. For variables not shown, all p>.20 for both penile measures. Due to missing information, the number of subjects was 748 for PW and 745 for PL.