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Table 1 Doctor-diagnosed depression in ankylosing spondylitis (AS) patients (n = 1,738) compared with the general population seeking healthcare (n = 967,012)

From: The risk for depression in patients with ankylosing spondylitis: a population-based cohort study

  Observed Expected    
  Person time (years) Number of cases1 Depression rate2 Number of cases Depression rate2 Absolute rate differences2 Rate ratio3 95% CI
Men, all 6,983 89 1,275 60 853 421 1.49 1.20, 1.89
≤50 years 2,879 42 1,376 27 933 443 1.47 1.10, 1.93
>50 years 4,104 47 1,155 31 759 396 1.52 1.07, 2.10
Women, all 3,259 83 2,547 46 1,409 1,138 1.81 1.44, 2.24
≤50 years 1,274 39 2,825 20 1,546 1,279 1.83 1.35, 2.42
>50 years 1,984 44 2,244 25 1,260 984 1.78 1.24, 2.48
Total, all 10,242 172 1,679 105 1,030 649 1.63 1.40, 1.89
≤50 years 4,153 83 1,825 47 1,123 702 1.63 1.32, 1.98
>50 years 6,089 89 1,512 56 923 588 1.64 1.28, 2.06
  1. 1AS patients diagnosed with depression (ICD-10 code F32 or F33) in 1999 to 2011. 2Per 100,000 person-years. 3Bold figures indicate statistically significant results.