Table 2.

Comparison of physical activity levels in second and third trimesters (n = 62).

	h/week		Difference (95% CI for the difference)	P value	MET h/week		Difference (SD) [95% CI for the difference]	P value
	22 weeks	34 weeks			22 weeks	34 weeks
	Mean (SD)	Mean (SD)			Mean (SD)	Mean (SD)
All modes of activities	11.9 (5.0)	7.7 (3.8)	4.2 (6.3) [2.6−5.8]	<0.001*	145.8 (67.2)	78.1 (41.7)	67.7 (80.0) [47.4−88]	<0.001*
By intensity
Sedentary	3.6 (3.1)	2.7 (2.3)	0.9 (3.2) [0.1−1.7]	<0.05*	26.4 (22.4)	46.0 (28.7)	−19.6(39.0) [−29.5–9.7]	<0.001*
Light-intensity	5.3 (2.0)	3.1 (1.8)	2.2 (2.8) [1.5−2.9]	<0.001*	81.6 (30.8)	19.6 (16.6)	62.0 (36.0) [52.9−71.2]	<0.001*
Moderate-intensity	2.9 (2.4)	1.7 (1.4)	1.2 (2.5) [0.5−1.8]	<0.001*	37.2 (38.3)	13.6 (13.0)	23.6 (38.2) [13.9−33.3]	<0.001*
Vigorous-intensity	0.1 (0.4)	0.0 (0.0)	0.1 (0.4) [−0.0–0.2]	0.131	0.5 (2.8)	0.0 (0.0)	0.5 (2.8) [−0.2−1.3]	0.132
By type
Household/care giving	4.3 (2.5)	3.3 (1.8)	1.1 (3.0)[0.4−1.8]	<0.01*	99.2 (55.8)	49.9 (31.0)	49.3 (62.1)[33.6−65.1]	<0.001*
Occupational	0.3 (1.3)	0.1 (0.8)	0.2 (1.1)[−0.0−0.5]	0.096	3.9 (15.3)	1.1 (8.5)	2.8 (13.0)[−0.46−6.1]	0.090
Sports/exercise	1.6 (1.7)	1.3 (1.0)	0.3 (1.8) [−0.1−0.8]	0.169	5.8 (6.4)	4.6 (3.4)	1.2 (6.9) [−0.6−2.9]	0.180
Transportation	0.6 (0.6)	0.2 (0.4)	0.4 (0.8) [0.2−0.6]	<0.001*	8.9 (9.4)	2.9 (5.5)	6.0 (11.2) [3.1−8.9]	<0.001*
Inactivity	3.8 (3.1)	2.7 (2.3)	1.0 (3.2) [0.2−1.8]	<0.05*	28.0 (22.9)	19.6 (16.6)	8.3 (23.6) [2.3−14.3]	<0.01*

Comparisons were performed using the paired-t-test. *p < 0.05, CI: confidence interval.