Table 5.

Multivariate logistic regression analysis of factors associated with adherence to APA program

	Odds Ratio	95% CI	p-value
Demographic/Social factors
≥ High school level education	1.58	0.96–2.63	.075
Health Status Factors
High Depressive Symptoms (GDS>5)	0.71	0.43–1.19	.196
SPPB score >8	1.81	1.06–3.10	.031
Poor Self-Rated Health	0.35	0.17–0.73	.005
Back Pain Factors
Roland Morris Scale	0.98	0.94–1.03	.397
Duration of Back Pain (>10 years)	1.90	1.22–2.97	.005
Accessibility Factors
Distance to gym (km)	0.92	0.85–0.99	.043
APA Satisfaction Factors*
Positive rating of trainer	1.71	1.08–2.71	.021
Satisfied with hours of operation	1.35	0.78–2.36	.286

GDS=Geriatric Depression Scale; SPPB= Short Physical Performance Battery

^*These factors are from the follow-up telephone interview, but all other factors are from the baseline assessment.