Safety and efficacy of a lifestyle intervention for pregnant women to prevent excessive maternal weight gain: a cluster-randomized controlled trial

Table 4 Energy intake and total physical activity in the control versus the intervention group

Variable	Control	Intervention	Overall effect size (95% CI)	p value^a)
	n = 47	n = 121
Energy [kcal/day]
Baseline	2,110 ± 409	2,195 ± 387	−115 (−221 to −8)	0.035
26-28 ^th wk		2,174 ± 331
36-38 ^th wk	2,328 ± 410	2,215 ± 347
p value ^b)	0.027	0.928
	n = 55	n = 118
Total activity [MET-min/wk]
Baseline	3,186 (1,711 - 4,932)	2,573 (1,605 - 4,488)	207 (−304 to 717)	0.425
26-28 ^th wk	2,826 (1,480 - 5,455)	2,529 (1,477 - 4,282)
36-38 ^th wk	2,232 (1,410 - 3,685)	1,968 (1,257 - 3,336)
p value ^b)	0.019	0.198

Wk = week.
Data are given as means ± SD or median (interquartile range), effect sizes as estimated marginal mean difference and 95% CIs.
a) P values for effect of intervention between groups (repeated-measurements ANOVA adjusted by baseline values).
b) Differences within groups (Friedman or Wilcoxon test).

ISSN: 1471-2393