. 2011 Jun 30;12:63. doi: 10.1186/1471-2296-12-63

Table 3.

Regression coefficients and odds ratios for the statistical prognostic model for persistent shoulder pain

	Statistical model
Predictors	category	β (SE)	OR (95% CI)
Sporting injury	yes	-1.228 (0.499)	0.29 (0.11 - 0.79)
Longer symptom duration	<6 weeks^a
	6-11 weeks	0.514 (0.253)	1.67 (1.01 - 2.75)
	>11 weeks	0.922 (0.230)	2.51 (1.60 - 3.96)
Coexisting lower back pain	yes	0.915 (0.233)	2.50 (1.57 - 3.96)
Bilateral shoulder pain	yes	0.706 (0.298)	2.03 (1.12 - 3.65)
Inability to perform daily activities	0 days^a
	1-30 days	-0.552 (0.220)	0.57 (0.37 - 0.98)
	1-12 months	-0.431 (0.342)	0.65 (0.33 - 1.29)
Coexisting upper extremity pain	yes	0.340 (0.204)	1.40 (0.94 - 2.10)
intercept		-0.770 (0.201)

B = regression coefficient estimate

SE = standard error of regression coefficient estimate

OR = odds ratio

95% CI = 95% confidence interval for the odds ratio

^areference category