Patient group | Event | PY | Incidence | Crude HRs (95% CI) | Adjusted HRs* (95% CI) |
---|---|---|---|---|---|
Non-RA cohort | |||||
Neither RA nor depression (n=29 925) | 3063 | 245086.81 | 12.50 | 1.00 | 1.00 |
Depression only (n=2675) | 377 | 24540.32 | 15.36 | 1.23 (1.11 to 1.37) | 1.57 (1.41 to 1.75) |
RA cohort | |||||
RA only (n=6909) | 929 | 55223.83 | 16.82 | 1.35 (1.25 to 1.45) | 1.43 (1.12 to 1.55) |
RA and depression (n=1136) | 181 | 9901.31 | 18.28 | 1.48 (1.26 to 1.71) | 2.18 (1.87 to 2.54) |
*Adjusted for age, gender, level of urbanisation, income, visits seeking medical care and comorbidity.
PY, per 1000 person-years for incidence rate; RA, rheumatoid arthritis.