Table 3

Factors associated with the presence of symptoms suggestive of depression (WHO-5 score of ≤28) in the multivariable regression analysis in different age groups

ReferenceAll patients*, n=1736, OR (95% CI)Age 18–39, n=287,OR (95% CI)Age 40–49, n=361, OR (95% CI)Age 50–59, n=376, OR (95% CI)Age 60–69, n=372, OR (95% CI)Age 70–79, n=340, OR (95% CI)
AgePer 10 years 0.98 (0.97 to 0.99)
Sex, femaleMale1.00 (0.77 to 1.29)1.29 (0.68 to 2.43)0.70 (0.42 to 1.18)1.01 (0.59 to 1.72)0.86 (0.48 to 1.56)1.57 (0.85 to 2.91)
BASDAIPer unit 1.37 (1.27 to 1.49) 1.11 (0.91 to 1.35) 1.40 (1.21 to 1.63) 1.28 (1.06 to 1.54) 1.74 (1.40 to 2.16) 1.38 (1.13 to 1.67)
BASFIPer unit 1.25 (1.17 to 1.33) 1.37 (1.13 to 1.66) 1.17 (1.02 to 1.34) 1.35 (1.18 to 1.56) 1.15 (0.99 to 1.34) 1.23 (1.06 to 1.42)
Lack of exerciseNo 1.50 (1.14 to 1.98) 1.91 (1.02 to 3.55) 1.26 (0.73 to 2.15)1.23 (0.66 to 2.32)1.84 (0.93 to 3.64)1.77 (0.90 to 3.49)
Suffering from stressNo 2.03 (1.55 to 2.64) 3.39 (1.66 to 6.94) 2.01 (1.19 to 3.37) 2.04 (1.19 to 3.50) 1.20 (0.62 to 2.33)1.87 (0.87 to 4.01)
Household income, < € 1500> € 3200 1.88 (1.27 to 2.78) 2.42 (0.95 to 6.20)1.25 (0.55 to 2.81) 2.52 (1.13 to 5.61) 1.65 (0.50 to 5.39)2.06 (0.45 to 9.4)
Household income, € 1500–3200> € 3200 1.54 (1.08 to 2.19) 3.12 (1.42 to 6.85) 1.37 (0.78 to 2.42)1.83 (0.88 to 3.82)0.76 (0.24 to 2.41)2.20 (0.49 to 9.92)
  • *The original model including age as a continuous covariate is shown for a reference purpose.

  • Odds ratios of variables associated with a WHO-5 score of ≤ 28 are shown in bold.

  • BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; BASFI, Bath Ankylosing Spondylitis Functional Index; WHO-5, five-item WHO Well-Being Index.