Table 2.

Age-Standardized Measures of Physical Activity and Sedentary Behaviors by Sexual Orientation, Nurses' Health Study II 1989–2009

	Mean (SD)a
	Heterosexual (n = 98,317)	Lesbian (n = 926)	pb	Bisexual (n = 415)	pb
Total aerobic physical activity (MET-hours/week)	21.9 (29.3)	24.2 (33.8)	0.005	24.7 (31.5)	0.007
Walking	6.4 (9.0)	6.1 (8.7)	0.07	6.5 (8.9)	0.68
Jogging	0.9 (4.6)	1.1 (5.3)	0.03	1.2 (5.5)	0.03
Running	1.2 (8.3)	1.6 (9.2)	0.25	1.4 (8.8)	0.66
Biking	2.6 (8.0)	3.4 (9.6)	<0.001	3.3 (9.3)	0.01
Other aerobic exercise (aerobic, dance, ski, or stair machine, etc.)	3.2 (8.0)	2.3 (7.1)	<0.001	3.4 (8.4)	0.33
Tennis, squash, or racquetball	0.5 (4.0)	0.9 (5.4)	<0.001	0.6 (3.9)	0.58
Swimming	0.8 (4.4)	1.2 (6.2)	0.005	1.1 (5.0)	0.02
Other vigorous activities (e.g., lawn mowing)	3.8 (8.2)	5.2 (10.0)	<0.001	4.2 (8.7)	0.25
Total time spent in strengthening activities (hours/week)	0.8 (1.9)	0.8 (1.9)	0.75	1.1 (2.6)	0.004
Lower intensity exercise (yoga, stretching, toning)	0.3 (0.9)	0.3 (0.9)	0.33	0.5 (1.2)	<0.001
Weight training (arm weights)	0.3 (0.8)	0.3 (0.8)	0.76	0.3 (1.0)	0.12
Weight training (leg weights)	0.2 (0.7)	0.2 (0.7)	0.87	0.3 (0.9)	0.14
Total sedentary time (hours/week)	31.4 (23.1)	35.8 (25.4)	<0.001	36.7 (25.5)	<0.001
Sitting at work or away from home or while driving	13.8 (13.4)	17.1 (14.9)	<0.001	17.3 (15.4)	<0.001
Sitting at home while watching TV/VCR/DVD	9.2 (9.6)	10.0 (10.4)	0.002	9.5 (10.4)	0.51
Other sitting at home (e.g., reading, meal times, at desk)	10.4 (10.5)	11.0 (11.3)	0.004	12.1 (11.9)	<0.001

^aValues are means (SD) and are standardized to the age distribution of the study population.

^bp-Values were generated from likelihood ratio test of age-adjusted repeated measures models.

MET, metabolic equivalent task; SD, standard deviation.