Table 3.

Multivariate Model: Association With Score Measuring the Effect of Pain on Work

	All Subjects N = 360	Depression Screening Negative N = 61	Depression Screening Positive N = 292	No Opioid Use N = 150	Uses Opioids N = 210
	Standardized β Coefficients and Significance
Intercept	3.09^‡	4.20^‡	2.81^‡	2.79^‡	3.64
Average pain level	0.189^‡	x	0.168^†	0.148^*	0.139^*
Flare-up frequency, last 12 months	0.108^*	x	x	0.234^†	x
How often pain in last 30 days	x	x	0.090^*	x	0.123^*
Effect of flare-up, last 12 months	0.170^‡	0.379^‡	0.148^†	0.269^‡	x
Positive depression screen (PHQ-2 score > 2)	0.131^†	x	0.170^‡	x	0.172^†
SF 36 Physical function score	−0.382^‡	−0.579^‡	−0.355^‡	−0.348^‡	−0.460^‡
Adjusted R²	0.535	0.685	0.452	0.609	0.398