Table 2 Odds Ratios (95% CI) between covariates and outcome

Age

1.02 (0.99 to 1.05)

1.05 (0.99 to 1.11)

Gender^b

0.67 (0.31 to 1.45)

0.70 (0.18 to 2.72)

 0–4 years

1.79 (0.60 to 5.29)

1.37 (0.21 to 9.00)

 5–9 years

1.00 (0.39 to 2.52)

1.66 (0.37 to 7.59)

  > 10 years

Reference

Reference

 0–1 years

1.71 (0.64 to 4.59)

0.47 (0.05 to 4.25)

 1–2 years

1.30 (0.48 to 3.51)

0.45 (0.05 to 3.99)

  > 2 years

Reference

Reference

Residence status^c

0.50 (0.17 to 1.51)

1.08 (0.18 to 6.48)