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Table 3 Predictors of 3rd trimester physical activity (PA): adjusted odds ratios (95% CI)

From: Determinants of physical activity frequency and provider advice during pregnancy

 

3rd trimester physical activity (days/week)

<1 day/week

1-4 days/week

≥5 days/week

<1 vs. 1–4

days/week

 

≥5 vs. 1–4

days/week

Weighted %

Weighted %

Weighted %

P value γ

aORa (95%)

aORa (95%)

Pre-pregnancy weight status (BMI)

   

0.0001

  

 Underweight (<19.8)

9.04

11.84

21.16

 

0.81 (0.54, 1.19)

2.27 (1.36, 3.79)

 Normal (BMI 19.8-26)

51.47

55.89

49.95

 

Reference

Reference

 Overweight (>26-29)

14.71

13.06

14.40

 

1.16 (0.79, 1.65)

1.43 (0.78, 2.60)

 Obese (>29)

24.78

19.21

14.50

 

1.32 (0.96, 1.80)

1.07 (0.64, 1.81)

Pre-pregnancy physical activity

   

<0.0001

  

  < 1 day/week

63.59

17.74

12.40

 

10.79 (5.46, 21.32)

0.10 (0.04, 0.30)

 1-4 days/week

32.24

69.35

20.76

 

Reference

Reference

  ≥ 5 days/week

4.17

12.91

66.84

 

0.05 (0.02, 0.11)

1.23 (0.65, 2.33)

  1. Table excludes women instructed ‘not to exercise’ during 3rd trimester (n = 281)
  2. aAdjusted for maternal age, education, race, household income, adequacy of prenatal care, marital status, parity, insurance status prior to pregnancy, smoking and drinking habits during pregnancy
  3. ϒ P < 0.05 Chi square comparing receipt of physical activity advice among BMI and gestational weight gain advice categories