TABLE V.

Unadjusted and adjusted regression models of reinjury risk for injured workers participating in vocational rehabilitation, by timescale

Subset/Model	Calendar quarters			Quarters with any wages			FTE quarters (hours worked/520)
	HR	95% CI	P	HR	95% CI	P	HR	95% CI	P
Completed vocational retraining plan (Ref: Approved plan not completed)
Unadjusted (N=1,242a)	0.77	0.62–0.97	.026	0.72	0.58–0.90	.004	0.68	0.55–0.86	.001
Adjustedb (N=1,242a)	0.83	0.65–1.06	.134	0.72	0.56–0.92	.009	0.68	0.53–0.88	.003
Option 2: Self-directed retraining funds (Ref: Conventional vocational retraining plan)
Unadjusted (N=1,209c)	1.29	1.03–1.62	.026	1.45	1.16–1.82	.001	1.58	1.26–1.98	<.001
Adjustedb (N=1,209c)	1.23	0.95–1.59	.116	1.50	1.15–1.95	.003	1.66	1.27–2.17	<.001

Abbreviations: CI, confidence interval; FTE, full-time equivalent; HR, hazard ratio; Ref, reference category.

^aConditional on having an approved vocational retraining plan and not having selected Option 2.

^bAdjusted models included the same variables as shown for the adjusted models in Table IV.

^cConditional on having an approved vocational retraining plan (completed or not completed) and availability of Option 2 before first claim closure.