Hospital levelIntraclass correlationHospital level
Variance (SE)PVE (%)
Visits to rheumatology clinics
 M1: Empty model2.801 (0.817)0.157Reference
 M2: Level 11.767 (0.491)0.13513.921R2=0.461
 M3: Level 1 + Level 21.704 (0.546)0.11029.949R2=0.475
Referrals by rheumatology
 M1: Empty model0.464 (0.184)0.123ReferenceMOR=2.205
 M2: Level 10.426 (0.195)0.1157.997MOR=2.135
 M3: Level 1 + Level 20.037 (0.125)0.01192.064MOR=1.249
  • M1: model 1 (empty); M2: model 2; M3: model 3 (full); PVE: proportion of variance explained; MOR: median odds ratio.