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. 2018 Mar 7;22(8):1190–1199. doi: 10.1007/s10995-018-2504-3

Table 2.

Multiple linear regression analysis for the association between maternal physical activity and maternal outcomes

Exposure variable	Outcome variable
	Unadjusted model				Adjusted model
	β (95% CI)	SE	p-Value	Adj R²	β (95% CI)	SE	p-Value	Adj R²
Absolute weight (29–33 weeks)
PA 2nd trimester	− 12.77 (− 21.0; − 4.53)	4.14	0.01*	0.07	− 2.29 (− 6.94; 2.34)^a	2.33	0.32	0.75
PA 3rd trimester	− 0.45 (− 1.28; 0.36)	0.41	0.27	0.01	− 0.28 (− 0.72; 0.16)^b	0.22	0.20	0.76
Change in PA	− 0.19 (− 0.40; 0.02)	0.10	0.08	0.01	− 0.33 (− 0.80; 0.13)^c	0.23	0.15	0.78
Weight change (< 14 weeks to 29–33 weeks)
PA 2nd trimester	1.03 (− 1.69; 3.77)	1.37	0.45	− 0.01	1.26 (− 1.27; 3.81)^a	1.28	0.32	0.17
PA 3rd trimester	− 0.14 (− 0.41; 0.12)	0.13	0.29	0.01	− 0.24 (− 0.49; − 0.00)^b	0.12	0.05*	0.21
Change in PA	− 0.19 (− 0.40; 0.2)	0.10	0.08	0.02	− 0.36 (− 0.62; − 0.10)^c	0.12	0.01*	0.19

*Indicates statistical significance (p ≤ 0.05)

^aAdjusted for BMI (< 14 weeks), age, parity, education, smoking, HIV status, days from baseline to 29–34 weeks

^bAdjusted for BMI (< 14 weeks), age, parity, education, smoking, HIV status, days from baseline to 29–33 weeks, imputed PA data

^cAdjusted for BMI (< 14 weeks), age, parity, education, smoking, PA (19–23 weeks), HIV status, days from baseline to 29–33 weeks