Table 4

Logistic regression analysis of demographic, socioeconomic disease-related factors with poor mental health (12-item General Health Questionnaire ≥3; N=4335)

Univariable logistic regressionMultivariable logistic regression
OR95% CIOR95% CI*
Age0.980.97 to 0.980.990.98 to 0.99
Gender: female1.571.40 to 1.751.161.01 to 1.33
Educational level: no university1.261.13 to 1.400.960.84 to 1.11
Employment status: sick leave or unemployed2.021.77 to 2.311.631.39 to 1.91
Patient organisation membership: no1.151.03 to 1.280.950.83 to 1.10
Physical activity engagement: no1.491.28 to 1.741.221.01 to 1.47
Smoking: yes1.631.42 to 1.881.201.01 to 1.43
Alcohol consumption: yes0.790.70 to 0.891.030.89 to 1.20
BASDAI (0–10)1.521.48 to 1.571.421.36 to 1.48
Spinal Stiffness Index (3–12)1.151.12 to 1.181.030.99 to 1.07
Functional Limitation Index (0–54)1.031.03 to 1.031.021.01 to 1.02
Symptom duration, years0.980.98 to 0.990.980.98 to 0.99
Inflammatory bowel disease1.321.12 to 1.561.010.83 to 1.23
  • *Bold 95%CI indicate statistical significance

  • BASDAI, Bath Ankylosing Spondylitis Disease Activity Index.