Table 2

Univariate logistic regression models to distinguish subjects with PMR from comparison subjects

	PMR vs all comparison subjects		PMR vs RA		PMR vs shoulder conditions^*
Variable	Odds ratio (95% CI)	c	Odds ratio (95% CI)	c	Odds ratio (95% CI)	c
Duration of symptoms ≥2 weeks	1.1 (0.3 to 4.0)	0.50	1.3 (0.2 to 7.3)	0.50	0.6 (0.1 to 5.4)	0.51
Shoulder pain or limited range of motion	2.1 (0.7 to 6.8)	0.52	1.3 (0.2 to 7.3)	0.50	1.9 (0.4 to 8.6)	0.51
Shoulder tenderness	1.1 (0.7 to 1.9)	0.51	0.7 (0.3 to 1.7)	0.52	1.8 (0.9 to 3.6)	0.56
Hip pain or limited range of motion	2.5(1.5 to 3.9)	0.61	3.0 (1.5 to 6.0)	0.63	4.4 (2.1 to 9.1)	0.67
Hip tenderness	2.3 (1.4 to 3.8)	0.60	2.8 (1.3 to 5.8)	0.61	4.3 (1.9 to 9.5)	0.65
Neck aching	1.1 (0.7 to 1.8)	0.51	0.9 (0.5 to 1.8)	0.51	1.2 (0.6 to 2.3)	0.52
Morning stiffness duration >45 min	4.5 (2.6 to 7.7)	0.67	1.5 (0.7 to 3.3)	0.54	13.6 (6.0 to 31)	0.79
Weight loss >2 kg	1.8 (1.1 to 3.0)	0.56	1.2 (0.6 to 2.4)	0.52	6.8 (2.3 to 19.9)	0.64
Carpal tunnel syndrome	1.0 (0.5 to 1.8)	0.50	0.6 (0.3 to 1.5)	0.54	–	–
Peripheral synovitis (distal swelling, tenosynovitis or arthritis)	0.7 (0.5 to 1.2)	0.54	0.1 (0.08 to 0.3)	0.72	2.4 (1.1 to 5.0)	0.59
Other joint pain	0.5 (0.3 to 0.9)	0.57	0.2 (0.1 to 0.4)	0.67	0.8 (0.4 to 1.5)	0.53
Abnormal CRP and/or ESR	13.8 (5.3 to 36)	0.67	4.0 (1.2 to 13)	0.55	33.5 (11 to 98)	0.78
Presence of RF and/or ACPA	0.4 (0.2 to 0.7)	0.57	0.2 (0.07 to 0.4)	0.66	0.9 (0.3 to 2.6)	0.51
Abnormal serum protein electrophoresis	2.0 (1.1 to 3.6)	0.58	1.9 (0.8 to 4.8)	0.58	2.0 (0.8 to 5.1)	0.59
MHAQ (per 1 unit increase)	2.3 (1.6 to 3.4)	0.66	1.3 (0.7 to 2.2)	0.55	6.7 (3.2 to 14)	0.78

ACPA, anticitrullinated protein antibody; c, c-statistic; CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; MHAQ, modified health assessment questionnaire; PMR, polymyalgia rheumatica; RA, rheumatoid arthritis; RF, rheumatoid factor.
↵* Bilateral rotator cuff syndrome and/or adhesive capsulitis, rotator cuff tear, glenohumeral osteoarthritis.