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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.