Table 2.
Factors affecting knowledge score on self-medication
| Univariate analysis (Chi-square) Knowledge Score | Multivariate analysis (Logistic regression) Knowledge Score < 4 | |||||
|---|---|---|---|---|---|---|
| < 4 | ≥4 | X2 | P | OR (95% CI) | P | |
| n (%) | n (%) | |||||
| Age | ||||||
| 18-29 | 64 (15.9) | 154 (22.4) | 49.05 | < 0.001 | reference | 0.893 |
| 30-59 | 208 (51.6) | 434 (63.0) | 0.97 (0.64-1.47) | 0.042 | ||
| 60 or above | 131 (32.5) | 101 (14.7) | 1.82 (1.02-3.26) | |||
| Gender | ||||||
| Male | 191 (47.5) | 340 (49.3) | 0.316 | 0.616 | 0.91 (0.67-1.23) | 0.529 |
| Female | 211 (52.5) | 350 (50.7) | reference | |||
| Education | ||||||
| No schooling/primary | 100 (25.1) | 61 (8.9) | 64.74 | < 0.001 | 3.19 (1.78-5.72) | < 0.001 |
| Secondary | 218 (54.6) | 379 (55.2) | 1.50 (1.03-2.19) | 0.035 | ||
| Diploma/degree | 81 (20.3) | 246 (35.9) | reference | |||
| Monthly household income (HK$)# | ||||||
| < $2000-$5999 | 37 (13.4) | 45 (8.3) | 11.98 | 0.007 | 0.90 (0.48-1.68) | 0.746 |
| $6000-$9999 | 27 (9.8) | 46 (8.5) | 0.99 (0.55-1.78) | 0.973 | ||
| $10000-$24999 | 130 (47.1) | 231 (42.5) | 1.20 (0.83-1.73) | 0.336 | ||
| ≥$25000 | 82 (29.7) | 221 (40.7) | reference | |||
| Presence of chronic illness | ||||||
| Yes | 309 (76.9) | 571 (82.9) | 5.88 | 0.017 | 1.03 (0.68-1.57) | 0.877 |
| No | 93 (23.1) | 118 (17.1) | reference | |||
#HKD1 = USD0.128