Table 4

 Distribution of predictors between patients hospitalised for infection and remainder of cohort

PredictorHospitalised for infectionControls
ACR, American College of Rheumatology; DMARD, disease-modifying antirheumatic drugs; HAQ, Health Assessment Questionnaire; RF, rheumatoid factor.
Age (years), mean (SD)62 (16)55 (16)
Sex: female, n (%)104 (62)1306 (67)
RA status: met ACR criteria, n (%)125 (74)1114 (57)
RF: positive, n (%)81 (51)600 (33)
Erosions: ever, n (%)68 (56)627 (48)
DMARD use: ever, n (%)78 (46)902 (46)
Corticosteroid use: ever, n (%)82 (49)439 (23)
Baseline HAQ, mean (SD)0.84 (0.69)0.85 (0.74)
HAQ at fifth assessment, mean (SD)0.96 (0.81)0.95 (0.82)
Overall HAQ, mean (SD)0.87 (0.71)0.83 (0.72)