Table 4.

Adjusted and unadjusted results of survival models comparing social, productive, and fitness activities at baseline in elderly people in New Haven, CT, United States^*

Statistic	Social activities			Fitness activities			Productive activities
	Unadjusted	Adjusted†		Unadjusted	Adjusted†		Unadjusted	Adjusted†
Regression coefficient‡ (SE)	−0.132 (0.019)§	−0.069 (0. 016)§		−0.168 (0.024)§	−0.078 (0.026)§		−0.248 (0.020)§	−0.112 (0.020)§
Hazard ratio¶ (95% CI) between highest and lowest quarter	0.67 (0.60 to 0.75)	0.81 (0.74 to 0.89)		0.71 (0.65 to 0.78)	0.85 (0.77 to 0.95)		0.57 (0.52 to 0.62)	0.77 (0.71 to 0.85)

^*Sample size at baseline 2812 after deletion of missing data, 2761 cases included in analysis. 

^†Adjusted for age, sex, race/ethnicity, marital status, body mass index, current smoking status, income, functional status, and history of smoking, cancer, stroke, diabetes, and myocardial infarction. 

^‡Regression coefficients are estimates of population effect variables representing effect of 1 unit increment in each activity index on log of hazard (risk) of death adjusted for other factors in model. All survival models estimated with sudaan, which corrects for complex sampling design. 

^§P<0.001. 

^¶Hazard ratios represent risk of death for those in highest versus lowest category of each activity type.