Table 2

Hazard ratios with 95% confidence intervals (CI) for mental ill health among patients with any atopic or allergic disorder compared with matched unexposed individuals

Number of outcomesPerson yearsIncidence rate (per 10 000 person years)Unadjusted HRAdjusted HR*
CompositeExposed229 12415 900 000144.131.23 (95% CI 1.23 to 1.24, p<0.001)1.16 (95% CI 1.15 to 1.17, p<0.001)
Unexposed203 45017 300 000117.82
SMIExposed558117 200 00032.461.00 (95% CI 0.97 to 1.04, p 0.895)0.99 (95% CI 0.95 to 1.03, p 0.646)
Unexposed597918 400 00032.51
AnxietyExposed93 84816 700 00056.2101.30 (95% CI 1.29 to 1.31, p<0.001)1.22 (95% CI 1.21 to 1.23, p<0.001)
Unexposed77 47918 000 00043.05
DepressionExposed138 65816 400 00084.591.25 (95% CI 1.24 to 1.26, p<0.001)1.15 (95% CI 1.14 to 1.16, p<0.001)
Unexposed121 24417 700 00068.48
Eating disordersExposed418817 200 0002.441.06 (95% CI 1.01 to 1.10, p 0.013)1.06 (95% CI 1.01 to 1.11, p 0.01)
Unexposed431018 400 0002.34
OCDExposed356517 200 0002.071.20 (95% CI 1.15 to 1.26, p<0.001)1.20 (95% CI 1.14 to 1.26, p<0.001)
Unexposed316318 400 0001.72
Self harmExposed21 95917 100 00012.830.99 (95% CI 0.98 to 1.01, p 0.518)1.02 (95% CI 1.00 to 1.04, p 0.032)
Unexposed23 61918 300 00012.90
  • *Adjusted HR: adjusted for age, sex, alcohol use, smoking status, body mass index (BMI), Townsend deprivation quintile score, asthma, and eczema at baseline.

  • OCD, obsessive-compulsive disorder; SMI, severe mental illness.