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Table 1 Cohort description at baseline

From: (Dis)agreement of polymyalgia rheumatica relapse criteria, and prediction of relapse in a retrospective cohort

Variables Total n = 417 (100%)
Age in years, mean (SD) 66.4 (8.8)
Sex female 233 (55.9%)
Positive medical history for   
Malignancy 51 (12.2%)
cardiovascular disease 59 (14.1%)
Smoking1   
No 197 (47.2%)
Stopped 87 (20.9%)
Active 52 (12.5%)
Pre-treatment symptom treatment in weeks, mean (SD)2 14 (13.7)
Presence of systemic symptoms 182 (43.6%)
(Suspected) presence of peripheral arthritis 64 (15.3%)
Shoulder pain/stiffness   
No 11 (2.6%)
Unilateral 16 (3.8%)
Bilateral 390 (93.5%)
Hip pain/stiffness   
No 39 (9.4%)
Unilateral 10 (2.4%)
Bilateral 368 (88.2%)
Movement restriction shoulders   
No 222 (53.2%)
Unilateral 26 (6.2%)
Bilateral 169 (40.5%)
Movement restriction hips   
No 325 (77.9%)
Unilateral 26 (6.2%)
Bilateral 66 (15.8%)
CRP in mg/L, median (IQR)3 29 (15–52.5)
ESR in mm/h, median (IQR)4 37 (26–51)
Hb in mmol/L, median (IQR)5 8.2 (7.6–8.6)
  1. SD, standard deviation; n, number; IQR, interquartile range; CRP, C-Reactive Protein; ESR, erythrocyte sedimentation rate; Hb, hemoglobin
  2. 1n = 336, 2n = 411, 3n = 364, 4n = 396, 5n = 317