. 2013 Jul;154(7):1038–1044. doi: 10.1016/j.pain.2013.03.011

Table 4.

Unadjusted and adjusted associations between baseline opioid prescription and disability (RMDQ score) at 6 months.

	Unadjusted analysis		Adjusted analysis^†		Multivariable analysis^‡		P value
	Coefficient^⁎	95% CI	Coefficient^⁎	95% CI	Coefficient^⁎	95% CI	P value
Opioid prescription in baseline period	4.21	3.28–5.14	1.23	0.45–2.00	1.18	0.17–2.19	.022

CI = confidence interval; RMDQ = Roland-Morris Disability Questionnaire.

^⁎

Regression coefficient denotes the mean difference in 6-month RMDQ score compared to a subject without an opioid prescription at baseline.

^†

Analysis adjusted for baseline RMDQ score.

^‡

Multivariable model adjusted for propensity score.