Table 3.

Bivariate Associations between Candidate Predictors of Non-Adherence at 12 Weeks

Variable	Adherence Level				Parameter Estimates
	<50% (n=124)		≥50% (n=201)		Relative Risk	95% CI	P-value
	N	% or Mean (SD)	N	% or Mean (SD)
Sex							0.17
Female	65	34.9	121	65.0	1.00	Reference
Male	59	42.4	80	57.5	1.21	0.92–1.60
White Race							0.09
Yes	102	36.4	178	63.6	1.00	Reference
No	22	48.9	23	51.1	1.34	0.96–1.88
Study Arm							0.002
PT	52	41.9	120	59.7	1.00	Reference
APM	72	58.1	81	40.3	1.56	1.17–2.06
Annual Income							0.046
≥$100,000	43	37.7	71	62.3	1.00	Reference	--
$30,000–$99,999	49	32.2	103	67.8	0.85	0.61–1.19
≤$29,000	18	56.2	14	43.7	1.49	1.01–2.19
Missing	14	51.8	13	48.1	1.37	0.89–2.12
Pain with pivot							0.005
Yes	108	39.1	190	63.8	1.00	Reference
No	14	60.9	9	36.2	1.68	1.17–2.41
Age (years)							0.84
45–54	48	40.0	72	60.0	1.12	0.75–1.69
55–64	55	37.7	91	62.3	1.06	0.71–1.58
≥65	21	35.6	38	64.4	1.00	Reference

Additional factors included in Table 1 were not associated with exercise non-adherence at OR < 0. 67 or > 1.5 and are therefore not shown