Table 2 Odds ratios and 95% confidence intervals from univariate and multi-variate logistic regressions

Variable

Univariate analysis

Multivariate analysis

Weighted multivariate analysis

 Female

1

1

1

 Male

0.8 (0.6, 1.2)

0.8 (0.6, 1.1)

0.7 (0.4, 1.1)

 18–34

1

1

1

 35–49

1.0 (0.7, 1.7)

1.1 (0.7, 1.9)

0.9 (0.4, 2.0)

 50–64

1.0 (0.7, 1.6)

1.1 (0.7, 1.8)

0.8 (0.3, 2.0)

  ≥ 65

0.8 (0.5, 1.5)

0.8 (0.4, 1.6)

0.6 (0.2, 1.9)

 Excellent

1

1

1

 Good

0.9 (0.4, 2.3)

0.9 (0.4, 2.1)

1.3 (0.5, 3.9)

 Fair

1.2 (0.6, 2.9)

1.1 (0.5, 2.7)

1.3 (0.5, 3.2)

 Poor

1.5 (0.6, 4.0)

1.0 (0.4, 2.8)

0.9 (0.3, 2.6)

 Very poor

2.5 (0.6, 8.9)

1.6 (0.4, 5.8)

5.4 (1.4, 20.6)*

 No

1

1

1

 Yes

2.4 (1.6, 3.6)*

2.6 (1.7, 4.0)*

2.2 (1.2, 3.8)*

 Middle school and below

1

1

1

 High school

0.9 (0.6, 1.4)

0.9 (0.6, 1.5)

0.6 (0.3, 1.4)

 College and above

1.1 (0.8, 1.7)

1.2 (0.8, 1.9)

0.9 (0.4, 2.0)

 Employed

1

1

1

 Out of work/not working

1.3 (0.6, 2.5)

1.4 (0.7, 2.6)

1.0 (0.4, 2.8)

 Unable to work

0.7 (0.3, 1.4)

0.6 (0.2, 1.3)

0.9 (0.3, 2.5)