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Table 6 Self-reported physical activity: between treatment group comparison a

From: The effects of antenatal dietary and lifestyle advice for women who are overweight or obese on maternal diet and physical activity: the LIMIT randomised trial

Outcome

Time point

Lifestyle advice (n = 974)b

Standard care (n = 950)b

Adjusted treatment × time interactionP-valuec

Adjusted treatment effect

P

95% CI

Commuting activityd

Trial entry

286.15 (386.14)

245.40 (277.01)

0.56

0.55

11.83 (-26.75 to 50.42)

28 weeks

234.95 (234.09)

219.74 (226.69)

36 weeks

212.05 (257.66)

228.88 (314.25)

4 months

309.87 (331.10)

330.50 (422.89)

Leisure activity

Trial entry

1081.25 (1423.50)

1022.28 (1282.32)

0.22

0.06

79.33 (-2.09 to 160.75)

28 weeks

1016.04 (1310.73)

862.28 (1092.86)

36 weeks

788.66 (961.96)

777.53 (900.00)

4 months

1281.07 (1303.30)

1163.67 (1249.04)

Household activity

Trial entry

3290.48 (3139.01)

3148.30 (3093.46)

0.59

0.01

265.60 (61.36 to 469.84)

28 weeks

3229.92 (3066.10)

2988.91 (2961.08)

36 weeks

3158.49 (2954.16)

2813.98 (2934.20)

4 months

4756.43 (3831.12)

4677.16 (3881.09)

Work activityd

Trial entry

4697.83 (3093.41)

4405.76 (2818.43)

0.40

0.52

80.85 (-163.12 to 324.83)

28 weeks

4326.30 (2707.53)

4279.65 (2660.85)

36 weeks

4032.73 (2484.61)

4059.23 (2593.77)

4 months

3041.02 (2505.86)

3204.85 (2706.89)

Total activity

Trial entry

7587.63 (4573.52)

7259.93 (4145.34)

0.99

0.01

359.76 (74.87 to 644.65)

28 Weeks

7010.32 (3950.39)

6742.48 (3836.85)

36 Weeks

5819.82 (3954.63)

5518.10 (3844.79)

4 Months

6530.19 (4336.80)

6317.00 (4498.15)

  1. aValues are mean ± SD and treatment effects are differences in means (with 95% confidence interval and P-value) across all time points estimated from a linear mixed effects model including treatment and time, adjusted for centre, parity and BMI.
  2. bIncludes women who had a live birth, and who answered one or more questionnaires; excludes questionnaires where the total hours of activity per week reported exceeded the number of hours in a week.
  3. cWhere the treatment × time interaction was not statistically significant, it was dropped from the model.
  4. dWhere women participated in these activities.