Table 3.

Final main effect model using linear regression with stepwise exclusion for maximal voluntary grip strength in 123 pregnant women and new mothers

Variable	B	95% CI	p
25(OH)D	0.94	(0.21–1.68)	.013
Country	63.9	(-97.9 – -29.9)	<.001
Age	2.5	(0.15 – 4.60)	.015
Height	2.6	(0.59 – 4.65)	.012

Independent variables included at the first step: country of birth, 25(OH)D level, age, height, weight, physical activity level, lactation status, parity, gestational age.

Unstandardized (B) with 95% confidence intervals (95% CI) and p-values. Significant p-values are in bold.