Table 1.

Descriptive statistics in those with changing levels of physical activity during pregnancy

	Change in exercise level in pregnancy to 15 weeks (n=1200)
	Decreased (n=813 (67.8%))	Unchanged (n=346 (28.8%))	Increased (n=41 (3.4%))
Maternal characteristics
Maternal age, mean (SD)	30.51 (4.17)*	28.89 (4.74)	28.88 (5.19)
Maternal BMI at 15 weeks, mean (SD)	25.02 (4.12)	24.49 (4.21)	24.18 (3.85)
Maternal years schooling, mean (SD)	13.27 (0.83)	13.18 (0.81)	13.15 (0.73)
Maternal socioeconomic status, mean (SD)	44.33 (16.15)*	39.10 (15.40)	43.51 (16.35)
Maternal household income <€21 000, n (%)	47 (5.80)*†	45 (13.16)	7 (17.07)
Maternal smoking in first trimester, n (%)	49 (6.03)*	55 (15.90)	5 (12.20)
Maternal alcohol intake in first trimester (units/week)	4.61 (5.76)	5.39 (6.97)	5.99 (8.10)
Birth outcomes
Gestational age (weeks), mean (SD)	40 (1.16)	40 (1.24)	40 (1.00)
Birth weight (g), mean (SD)	3525 (460)	3471 (478)	3541 (449)
Neonatal adiposity (%), mean (SD)	11.06 (4.15)	11.03 (4.06)	11.22 (4.13)
Adiposity <10th centile (yes), n (%)	68 (8.36)	26 (7.51)	3 (7.32)
Adiposity >90th centile (yes), n (%)	86 (10.58)	39 (11.27)	7 (17.07)