Characteristics associated with influenza vaccination in middle school students
| Variable | Odds ratio (95% confidence interval) of vaccination | ||
|---|---|---|---|
| Model 1 |
Model 2 |
Model 3 |
|
| Gender | |||
| Man | 0.901 (0.853–0.952) | 0.907 (0.848–0.971) | 0.890 (0.831–0.954) |
| Woman | 1 | 1 | 1 |
| Grade | |||
| 1 | 2.402 (2.245–2.570) | 2.406 (2.216–2.613) | 2.420 (2.226–2.631) |
| 2 | 1.885 (1.769–2.008) | 1.892 (1.758–2.037) | 1.900 (1.766–2.044) |
| 3 | 1 | 1 | |
| City type | |||
| Small city | 0.994 (0.902–1.095) | 1.012 (0.897–1.143) | 1.031 (0.913–1.164) |
| Middle sized city | 1 | 1 | 1 |
| Metropolitan | 1.151 (1.077–1.230) | 1.149 (1.057–1.248) | 1.151 (1.058–1.251) |
| Economic status | |||
| Very high | 1.789 (1.462–2.190) | 1.250 (0.912–1.715) | 1.260 (0.918–1.728) |
| High | 1.669 (1.371–2.032) | 1.201 (0.886–1.628) | 1.208 (0.892–1.636) |
| Moderate | 1.309 (1.082–1.583) | 0.987 (0.732–1.331) | 0.992 (0.736–1.337) |
| Low | 1.019 (0.834–1.245) | 0.862 (0.621–1.197) | 0.862 (0.622–1.195) |
| Very low | 1 | 1 | 1 |
| School achievement | |||
| Very high | 1.730 (1.548–1.933) | 1.558 (1.330–1.826) | 1.515 (1.292–1.777) |
| High | 1.678 (1.507–1.868) | 1.523 (1.315–1.764) | 1.496 (1.292–1.732) |
| Moderate | 1.530 (1.385–1.691) | 1.461 (1.259–1.697) | 1.447 (1.246–1.680) |
| Low | 1.272 (1.145–1.413) | 1.296 (1.121–1.498) | 1.292 (1.119–1.493) |
| Very low | 1 | 1 | 1 |
| Educational level of father | |||
| Middle school or lower | 0.752 (0.606–0.934) | 1.070 (0.823–1.390) | 1.074 (0.827–1.395) |
| High school | 0.900 (0.839–0.966) | 1.072 (0.983–1.169) | 1.079 (0.989–1.178) |
| University or higher | 1 | 1 | 1 |
| Educational level of mother | |||
| Middle school or lower | 0.575 (0.449–0.736) | 0.606 (0.448–0.819) | 0.611 (0.452–0.826) |
| High school | 0.896 (0.838–0.957) | 0.994 (0.918–1.076) | 0.999 (0.923–1.081) |
| University or higher | 1 | 1 | 1 |
| Experience of part-time job | |||
| No | 1 | 1 | 1 |
| Yes | 0.709 (0.630–0.798) | 0.966 (0.820–1.137) | 0.964 (0.814–1.140) |
| Ever smoked | |||
| No | 1 | 1 | 1 |
| Yes | 0.754 (0.683–0.832) | 0.999 (0.878–1.136) | 1.012 (0.888–1.153) |
| Ever drank alcohol | |||
| No | 1 | 1 | 1 |
| Yes | 0.861 (0.814–0.911) | 0.980 (0.913–1.052) | 0.974 (0.907–1.046) |
| Physical activity | |||
| Non-optimal intensity | 1 | 1 | 1 |
| Optimal intensity | 1.169 (1.053–1.298) | 1.137 (0.995–1.300) | 1.148 (1.000–1.312) |
| Asthma | |||
| No | 1 | 1 | 1 |
| Yes | 1.177 (1.080–1.282) | 1.236 (1.112–1.374) | 1.184 (1.064–1.318) |
| Allergic rhinoritis | |||
| No | 1 | 1 | 1 |
| Yes | 1.245 (1.182–1.312) | 1.228 (1.150–1.311) | 1.218 (1.140–1.302) |
aUnadjusted. bAdjusted by gender, grade, socioeconomic status (city type, house income, parents’ education level, weekly allowance, experience of part-time job, school achievement). cAdjusted by gender, grade, socioeconomic status (city type, house income, parents’ education level, weekly allowance, experience of part-time job, school achievement), health behavior (smoking, alcohol drinking, physical activity), medical history (asthma, allergic rhinitis, atopic dermatitis).