Table 3.
Multinomial logistic regression to identify influencing factors of Haemophilus influenzae type b (Hib) vaccination status, taking unvaccinated group as the base
| Factors | Monovalent vaccine group |
Combination vaccine group |
||
|---|---|---|---|---|
|
|
RRR
|
95% CI
|
RRR
|
95% CI
|
|
Respondent's age (years)
|
|
|
|
|
| <30 |
Ref. |
|
Ref. |
|
| 30-39 |
0.97 |
(0.80-1.17) |
0.96 |
(0.80-1.16) |
| 40-49 |
1.20 |
(0.86-1.67) |
1.54* |
(1.10-2.16) |
| ≥50 |
1.24 |
(0.66-2.32) |
1.44 |
(0.71-2.90) |
|
Respondent's relationship with the child
|
|
|
|
|
| Mather |
Ref. |
|
Ref. |
|
| Father |
0.84 |
(0.67-1.05) |
0.85 |
(0.69-1.06) |
| Grandparent |
0.72 |
(0.40-1.30) |
1.17 |
(0.60-2.30) |
|
Respondent's education level
|
|
|
|
|
| Elementary school and below |
Ref. |
|
Ref. |
|
| Middle school |
1.04 |
(0.77-1.39) |
1.66* |
(1.12-2.47) |
| Senior high school / technical school |
0.78 |
(0.57-1.07) |
1.61* |
(1.07-2.42) |
| College / associate degree |
0.71 |
(0.50-1.02) |
2.50† |
(1.63-3.83) |
| Bachelor's degree and above |
0.64* |
(0.44-0.92) |
3.45† |
(2.24-5.30) |
|
Belonging to minority groups
|
1.11 |
(0.80-1.54) |
0.70 |
(0.47-1.04) |
|
Child's age (years)
|
|
|
|
|
| <1 |
Ref. |
|
Ref. |
|
| 1-2 |
2.09† |
(1.65-2.66) |
0.96 |
(0.79-1.18) |
| 2-3 |
2.53† |
(1.96-3.27) |
0.71† |
(0.56-0.90) |
| 3-5 |
3.36† |
(2.66-4.26) |
0.54† |
(0.43-0.67) |
|
Child's gender is male
|
0.88 |
(0.75-1.03) |
0.90 |
(0.77-1.05) |
|
Household monthly per capita income quantiles
|
|
|
|
|
| Quantile 1 (0-1000 yuan) |
Ref. |
|
Ref. |
|
| Quantile 2 (1001-1600 yuan) |
1.22 |
(0.96-1.56) |
1.45* |
(1.08-1.95) |
| Quantile 3 (1601-2400 yuan) |
1.36* |
(1.06-1.74) |
1.72† |
(1.30-2.28) |
| Quantile 4 (2401-3750 yuan) |
1.34* |
(1.03-1.75) |
1.94† |
(1.46-2.58) |
| Quantile 5 (>3751 yuan) |
1.58† |
(1.17-2.13) |
2.65† |
(1.96-3.58) |
|
Living in urban area
|
0.86 |
(0.71-1.04) |
1.35† |
(1.10-1.65) |
|
Migrant respondent
|
1.00 |
(0.81-1.23) |
0.70† |
(0.58-0.86) |
|
Consider vaccine as important
|
1.08 |
(0.66-1.78) |
0.90 |
(0.53-1.53) |
|
Consider vaccine as safe
|
0.93 |
(0.75-1.16) |
1.01 |
(0.82-1.26) |
|
Consider vaccine as effective
|
1.00 |
(0.81-1.23) |
0.83 |
(0.67-1.02) |
|
Hib monovalent vaccine provided in frequently visited health care centre
|
22.11† |
(10.45-46.77) |
4.48† |
(3.05-6.59) |
|
Hib combination vaccine provided in frequently visited health care centre
|
0.93 |
(0.76-1.15) |
2.38† |
(1.89-2.99) |
|
Province
|
|
|
|
|
| Shanghai |
Ref. |
|
Ref. |
|
| Beijing |
0.07† |
(0.04-0.12) |
0.05† |
(0.03-0.07) |
| Chongqing |
1.08 |
(0.75-1.54) |
0.29† |
(0.21-0.41) |
| Gansu |
0.49* |
(0.28-0.88) |
0.36† |
(0.23-0.55) |
| Guangdong |
0.60* |
(0.41-0.89) |
0.41† |
(0.29-0.58) |
| Henan |
1.04 |
(0.71-1.52) |
1.41* |
(1.02-1.94) |
| Jiangxi |
1.32 |
(0.93-1.89) |
0.49† |
(0.35-0.68) |
| Jilin |
0.24† |
(0.15-0.39) |
0.14† |
(0.09-0.21) |
| Shandong |
0.67* |
(0.45-0.99) |
0.40† |
(0.29-0.57) |
| Yunnan | 1.12 | (0.77-1.63) | 0.62† | (0.43-0.88) |
RRR – relative risk reduction, CI – confidence interval, Hib – Haemophilus influenzae type b
*P < 0.05.
†P < 0.01.