| Local urban (n = 517) | Migrant (n = 276) | Non-left-behind (n = 488) | Left-behind (n = 367) | ||||
---|---|---|---|---|---|---|---|---|
OR (95% CI) | P value | OR (95% CI) | P value | OR (95% CI) | P value | OR (95% CI) | P value | |
Children | ||||||||
 Age, years | ||||||||
  1–2 | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
  > 2 | 1.69 (1.07–2.68) | 0.025 | 2.67 (1.39–5.13) | 0.003 | 3.09 (1.23–7.76) | 0.017 | 1.83 (0.44–7.55) | 0.406 |
 Sex | ||||||||
  Male | 0.93 (0.64–1.36) | 0.707 | 0.83 (0.46–1.50) | 0.542 | 1.40 (0.76–2.58) | 0.277 | 1.54 (0.58–4.11) | 0.389 |
  Female | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
 Birth order | ||||||||
  First-born | 1.21 (0.81–1.79) | 0.357 | 0.86 (0.47–1.58) | 0.629 | 1.02 (0.55–1.87) | 0.970 | 0.85 (0.32–2.25) | 0.750 |
  Later-born | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
Caregivers | ||||||||
 Family role | ||||||||
  Parents | 0.86 (0.58–1.27) | 0.437 | 1.65 (0.68–4.03) | 0.272 | 0.37 (0.14–0.99) | 0.047 | 0.51 (0.11–2.46) | 0.404 |
  Others | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
 Age, years | ||||||||
  ≤ 35 | 0.71 (0.39–1.29) | 0.257 | 0.74 (0.17–3.27) | 0.689 | 7.27 (1.39–37.94) | 0.019 | 1.01 (0.21–5.01) | 0.987 |
  35–40 | 0.60 (0.30–1.19) | 0.145 | 0.87 (0.17–4.54) | 0.864 | 3.88 (0.67–22.57) | 0.131 | – | 0.982 |
  ≥ 40 | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
 Sex | ||||||||
  Male | Ref |  | Ref |  | Ref |  | Ref |  |
  Female | 0.49 (0.30–0.81) | 0.005 | 0.81 (0.35–1.87) | 0.616 | 0.31 (0.15–0.62) | 0.001 | 2.80 (0.68–11.62) | 0.155 |
 Education level | ||||||||
  Elementary school or lower | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
  Middle school | – | 0.951 | 1.37 (0.24–7.91) | 0.723 | 1.33 (0.41–4.34) | 0.641 | 1.24 (0.37–4.17) | 0.731 |
  Junior college or higher | – | 0.951 | 2.30 (0.37–14.23) | 0.370 | 0.77 (0.13–4.46) | 0.773 | – | 0.988 |
 Total household income | ||||||||
  Less than average | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
  More than average | 1.35 (0.91–2.01) | 0.139 | 1.11 (0.56–2.23) | 0.763 | 1.08 (0.59–1.97) | 0.810 | 1.91 (0.63–5.76) | 0.253 |
 Physical health score | ||||||||
  Less than average | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
  More than average | 1.58 (1.07–2.35) | 0.023 | 1.37 (0.74–2.55) | 0.321 | 1.14 (0.59–2.20) | 0.695 | 2.38 (0.72–7.86) | 0.154 |
 Mental health score | ||||||||
  Less than average | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
  More than average | 0.71 (0.47–1.06) | 0.097 | 0.56 (0.29–1.07) | 0.078 | 0.57 (0.31–1.03) | 0.064 | 0.48 (0.18–1.30) | 0.150 |
 Knowledge of non-NIP vaccination | ||||||||
  Poor | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
  Good | 0.45 (0.30–0.68) | < 0.0001 | 0.57 (0.27–1.18) | 0.130 | 0.82 (0.37–1.83) | 0.626 | 7.54 (2.64–21.50) | < 0.001 |
 Satisfaction of non-NIP vaccination | ||||||||
  Not satisfied | Ref. |  | Ref. |  | Ref. |  | Ref. |  |
  Satisfied | 0.80 (0.48–1.31) | 0.368 | 0.60 (0.30–1.20) | 0.150 | 0.56 (0.26–1.18) | 0.128 | 0.25 (0.06–1.10) | 0.068 |