Patterns of leisure-time physical activity across pregnancy and adverse pregnancy outcomes

Table 2 Number and percent of women with adequate exercise regimen^a within nuMoM2b study visit by leisure-time physical activity trajectory class across study visits

Leisure-time physical activity trajectory class	Visit 1	Visit 2	Visit 3
	6 to < 14 wks	16 to < 22 wks	22 to < 30 wks
	(N = 10,016)	(N = 9408)	(N = 9215)
High	833/3479 (23.9%)	671/3274 (20.5%)	470/3231 (14.5%)
Early decreasing	55/1017 (5.4%)	2/1009 (0.2%)	22/981 (2.2%)
Early increasing	9/1338 (0.7%)	66/1312 (5.0%)	50/1284 (3.9%)
Late decreasing	39/2402 (1.6%)	46/2249 (2.0%)	64/2210 (2.9%)
Low	5/1780 (0.3%)	5/1564 (0.3%)	12/1509 (0.8%)
p-value^2/	<.0001	<.0001	<.0001

^aAdequate exercise regimen is defined as > = 150 min of moderate activity per week or > =75 min of vigorous activity per week or some combination of moderate and vigorous that is equivalent to these guidelines. Moderate activity is 3 to < 6 METs. Vigorous activity is 6+ METs
^2/P-values are shown for chi-square tests of association between leisure-time physical activity trajectory class and percent of women with adequate exercise regimen for the specific study visit

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