Table 2.

Total Mortality Rate of Arthritis, Diet, and Activity Promotion Trial Participants According to Randomized Group

	n	Person-Years	Deaths (n = 45)	Death Rate (per 100 person-years)	Rate Ratio (95% CI)	p	Adjusted RR (95% CI)*	p
Stratum results
Control	78	611.9	13	2.12	Reference		Reference
Weight loss only	82	680.0	7	1.03	0.5 (0.2–1.2)	.12	0.5 (0.2–1.4)	.19
Weight loss + exercise	77	626.2	8	1.28	0.6 (0.3–1.4)	.22	0.6 (0.3–1.5)	.31
Exercise only	81	626.1	17	2.72	1.3 (0.7–2.4)	.43	1.3 (0.6–2.8)	.48
Main effects results
Exercise
Not randomized to exercise intervention	160	1291.9	20	1.55	Reference		Reference
Randomized to exercise intervention	158	1252.3	25	2.00	1.3 (0.7–2.2)	.83	1.3 (0.7–2.4)†	.38
Dietary weight loss
Not randomized to weight loss intervention	159	1238.0	30	2.42	Reference		Reference
Randomized to weight loss intervention	159	1306.2	15	1.15	0.5 (0.3–0.9)	.01	0.5 (0.3–1.0)‡	.03

Notes: *Adjusted for age and sex.

^†Further adjusted for dietary weight loss treatment.

^‡Further adjusted for exercise treatment.

RR = relative risk.