. Author manuscript; available in PMC: 2014 Apr 24.

Published in final edited form as: J Health Soc Behav. 2013 Aug 29;54(3):353–368. doi: 10.1177/0022146513489312

Table 3.

Odds Ratios from Logistic Regression Models Predicting Starting Physical Activity, Health and Retirement Study (1992–2010).

	Starting Physical Activity among Inactive

	Bivariate	Model 1	Model 2a^a	Model 2b	Model 3	Model 4a	Model 4b Age 50–60	Model 4c Age 61–75
Sample size	14,479	14,479	14,479	14,479	14,479	14,479	11,066	10,650
Education (years)	1.04^***	1.03^***	1.00	1.00	1.00	.99^**	.97^***	1.01
Age	.97^***	.97^***	.99^***	.99^***	.99^***	.99^***	1.00	.94^***
Female	.77^***	.83^***	.89^***	.92^**	.90^***	.90^***	.95	.81^***
Race-ethnicity (non-Hispanic white)
Non-Hispanic Black	.83^***	.93	1.02	.96	1.02	1.02	1.01	1.03
Hispanic/other	.95	1.07	1.04	1.05	1.04	1.04	1.05	1.02
Partnered (un-partnered)	1.44^***	1.32^***	1.23^***	1.23^***	1.23^***	1.23^***	1.19^***	1.25^***
Any new chronic condition (none)	.86^***		.92		.92^*	.64^*	.64	.67
Number of previous chronic conditions	.71^***		.84^***		.84^***	.85^***	.86^***	.84^***
Obese (not obese)^a	.59^***		.76^***		.76^***	.76^***	.73^***	.78^***
Any mobility limitation (none)	.38^***		.48^***	.41^***	.49^***	.49^***	.47^***	.50^***
Labor force participation at baseline (full-time)
Not working	.96				1.04	1.04	.97	1.13^*
Part-time	.67^***				.91^**	.91^**	.89	.93
Change in labor force participation (no change)
Working less	1.34^***				1.29^***	1.29^***	1.19^**	1.30^***
Working more	1.26^***				1.15*	1.15^*	1.16^*	1.22^***
Reported dead during follow-up	.82^***				1.00	.99	1.11	1.01
Education × New Chronic Condition	1.03					1.02^*	1.02	1.03

Model 2a controls for all four health variables, each of which alone does not explain education differences in starting physical activity (results not shown) except mobility limitations, which is shown in Model 2b, highlighting its importance for explaining education differences in starting physical activity.

p < .05.

^**

p < .01.

^***

p < .001.