| Knowledge | Attitude | Practice |
---|---|---|---|
Age1 | OR (CI) | OR (CI) | OR (CI) |
 20–41 | Reference | Reference | Reference |
 42–50 | 0.56 (0.27–1.16) | 1.42 (0.69–2.92) | 1.07 (0.52–2.18) |
 51–69 | 0.86 (0.41–1.81) | 1.46 (0.70–3.05) | 1.84 (0.87–3.90) |
†P for trend | 0.48 | 0.33 | 0.13 |
Educational status2 | Â | Â | Â |
 Primary | Reference | Reference | Reference |
 Diploma | 3.98 (1.21–13.10) | 1.50 (0.52–4.30) | 2.49 (0.85–7.29) |
 University | 5.49 (1.47–20.39) | 1.14 (0.33–3.35) | 3.67 (1.09–12.37) |
†P for trend | 0.01 | 0.79 | 0.04 |
Socioeconomic status2 | Â | Â | Â |
 Low | Reference | Reference | Reference |
 Medium | 1.84 (0.87–3.90) | 1.33 (0.63–2.81) | 1.22 (0.58–2.56) |
 High | 1.07 (0.51–2.21) | 0.80 (0.39–1.66) | 1.11 (0.53–2.31) |
†P for trend | 0.76 | 0.52 | 0.73 |