Skip to main content

Table 2 Cox-model-measured hazard ratios and 95% confidence intervals of chronic fatigue syndrome associated with psoriasis and covariates

From: Increased risk of chronic fatigue syndrome following psoriasis: a nationwide population-based cohort study

Variable Event no. Person-years IR HR (95% CI)
Univariate Multivariatea
Psoriasis
 No 126 55,446 2.27 1.00 1.00
 Yes 50 13,958 3.58 1.58 (1.14–2.19)** 1.48 (1.07–2.06)*
Sex
 Women 91 32,509 2.80 1.00 1.00
 Men 85 36,895 2.30 0.82 (0.61–1.11) 0.86 (0.64–1.17)
Age, years
 20–39 62 31,599 1.96 1.00 1.00
 40–59 60 23,974 2.50 1.28 (0.90–1.82) 1.17 (0.81–1.68)
 ≥ 60 54 13,832 3.90 1.99 (1.38–2.87)*** 1.64 (1.10–2.45)*
Comorbidity
 Diabetes
  No 158 63,598 2.48 1.00 1.00
  Yes 18 5806 3.10 1.25 (0.77–2.03) 0.83 (0.49–1.38)
 Depression
  No 158 66,645 2.37 1.00 1.00
  Yes 18 2760 6.52 2.75 (1.69–4.48)*** 1.51 (0.89–2.57)
 Anxiety
  No 153 65,385 2.34 1.00 1.00
  Yes 23 4020 5.72 2.44 (1.58–3.79)*** 1.30 (0.80–2.11)
 Sleep disorder
  No 115 58,403 1.97 1.00 1.00
  Yes 61 11,002 5.54 2.81 (2.06–3.84)*** 2.17 (1.53–3.08)***
 Renal disease
  No 161 66,170 2.43 1.00 1.00
  Yes 15 3234 4.64 1.91 (1.13–3.24)* 1.26 (0.73–2.20)
  1. IR incidence density rate per 1000 person-years, HR hazard ratio, CI confidence interval
  2. P < 0.05, ** P < 0.01, *** P < 0.001
  3. aAdjusted for psoriasis, sex, age (categorical), diabetes, depression, anxiety, sleep disorder, and renal disease