Table 4.

Multiple Linear Regression Analysis for Self-reported and Device-based Physical Activity During the early-COVID-19 (April-May 2020) Period as a Function of Past 7-day Physical Activity Locations.

Physical Activity Location	Vigorous (min/week)				Moderate (min/week)				Walking (min/week)				Steps (counts/day)
	β	SE	p	ΔR2	β	SE	p	ΔR2	β	SE	p	ΔR2	β	SE	p	ΔR2
Home/Garage	1.579	0.436	<0.001	0.056	1.333	0.410	0.001	0.040	0.079	0.382	0.836	<0.001	−0.374	0.934	0.689	0.011
Driveway/Yard	1.136	0.464	0.015	0.025	1.201	0.440	0.007	0.029	0.124	0.410	0.763	<0.001	1.142	0.924	0.219	0.006
Roads in Neighborhood	−0.203	0.409	0.619	<0.001	0.102	0.387	0.793	0.001	0.508	0.361	0.161	0.010	2.081	0.804	0.011	0.062
Roads outside Neighborhood	0.875	0.467	0.063	0.017	0.296	0.445	0.507	0.030	0.472	0.410	0.250	0.008	1.207	0.947	0.205	0.028
Gym/Fitness Center	−0.004	0.847	0.996	<0.001	1.081	0.797	0.177	0.008	−0.405	0.743	0.587	0.001	1.955	1.755	0.268	0.010
Park/Trail	0.315	0.420	0.454	0.002	0.301	0.396	0.448	0.002	0.336	0.369	0.363	0.003	1.781	0.846	0.038	0.029

n = 235 for vigorous, n = 233 for moderate, n = 234 for walking, and n = 124 for steps. SE = standard error. ΔR² = change in r-squared value. Self-reported minutes of vigorous, moderate, and walking physical activity per week were assessed by the short-form International Physical Activity Questionnaire (IPAQ). Device-based step counts per day were assessed by the on-board accelerometer in participants’ personal smartphones. Vigorous, moderate, walking, and steps were cube root transformed to adjust for positive skew. Physical activity locations (i.e., where physical activity occurred in past 7 days) coded 1 = yes and 0 = no. Participants who reported less 30 min physical activity per week did not receive past 7-day physical activity questions (n = 32). All models adjust for age (18–39 years, 40–59 years, and 60+ years), sex (male vs. female), weight status (underweight is <18.5 kg/m², normal weight is ≥18.5 kg/m² and <25 kg/m², overweight is ≥25 kg/m² and <30, obese is ≥30 kg/m²), ethnicity (Hispanic/Latino vs. non-Hispanic/Latino), and annual household income ($12,500–$26,999, $27,000–$59,999, $60,000–$99,999, more than $100,000).