Table 2.

Multivariable regression model and weighted model (n = 1881).

VariableModel 1 Relative Risk (95% CI)Model 2 Weighted Relative Risk (95% CI)
Age
  25–351 (referent)1 (referent)
  36–450.83 (0.60–1.13)0.85 (0.62–1.16)
  46–550.90 (0.66–1.21)0.91 (0.67–1.22)
  56–650.78 (0.57–1.06)0.80 (0.58–1.08)
Sex
  Male1 (referent)1 (referent)
  Female1.07 (0.88–1.29)1.10 (0.90–1.33)
Sleep problems
  Low2.21 (1.62–3.01)2.12 (1.55–2.91)
  Medium1.35 (0.97–1.88)1.34 (0.96–1.87)
  High1 (referent)1 (referent)
Illness behavior
  Low3.33 (2.16–5.12)3.14 (2.01–4.90)
  Medium2.39 (1.55–3.67)2.21 (1.41–3.44)
  High1 (referent)1 (referent)
Psychological distress
  Low1.09 (0.82–1.45)1.17 (0.87–1.56)
  Medium0.79 (0.54–1.13)0.88 (0.60–1.28)
  High1 (referent)1 (referent)
Somatic symptoms
  None1.49 (0.76–2.91)1.42 (0.72–2.78)
  One1.11 (0.55–2.22)0.98 (0.49–1.94)
  Two1.25 (0.59–2.62)1.21 (0.58–2.53)
  Three or more1 (referent)1 (referent)
Life events
  None1.31 (0.85–2.00)1.30 (0.83–2.01)
  One or two1.07 (0.69–1.64)1.06 (0.68–1.66)
  Three or more1 (referent)1 (referent)