Table 3 Subgroup analysis of breastfeeding knowledge level of pregnant women (M ± SD, score)
Subgroup | Breastfeeding benefits | Breastfeeding skills | Breast milk storage methods | Breastfeeding conditions | Total score |
|---|---|---|---|---|---|
Age (year) | |||||
≤ 29 | 42.3 ± 6.3 | 30.0 ± 3.9 | 11.5 ± 2.2 | 20.2 ± 3.4 | 104.0 ± 13.4 |
30–34 | 41.8 ± 6.5 | 29.5 ± 4.7 | 11.2 ± 2.3 | 20.6 ± 3.9 | 104.5 ± 9.9 |
35–39 | 42.4 ± 5.0 | 28.5 ± 3.3 | 10.9 ± 2.1 | 19.6 ± 2.9 | 101.4 ± 10.2 |
≥ 40 | 43.8 ± 5.1 | 29.9 ± 3.3 | 9.9 ± 1.6 | 21.1 ± 2.6 | 104.7 ± 8.1 |
F | 0.740 | 1.500 | 3.234 | 1.838 | 1.361 |
P value | 0.529 | 0.216 | 0.023 | 0.141 | 0.256 |
Educational level | |||||
Junior High and below | 37.6 ± 4.4 | 27.1 ± 3.8 | 10.0 ± 1.6 | 17.9 ± 2.8 | 92.6 ± 11.1 |
Senior High | 38.5 ± 11.4 | 25.8 ± 8.8 | 10.1 ± 3.0 | 18.0 ± 5.8 | 98.9 ± 9.7 |
Junior college | 41.9 ± 5.8 | 28.9 ± 3.6 | 10.7 ± 2.3 | 19.8 ± 3.1 | 101.3 ± 12.1 |
Bachelor or above | 43.4 ± 4.6 | 30.1 ± 3.2 | 11.3 ± 2.0 | 21.0 ± 2.9 | 105.8 ± 8.8 |
F | 7.463 | 7.825 | 3.394 | 7.528 | 10.075 |
P value | < 0.001 | < 0.001 | 0.019 | < 0.001 | < 0.001 |
Nationality | |||||
Han | 42.5 ± 5.8 | 29.4 ± 4.0 | 11.0 ± 22.2 | 20.4 ± 3.3 | 103.9 ± 10. |
Minority | 39.7 ± 5.2 | 26.9 ± 4.3 | 10.6 ± 1.7 | 17.6 ± 3.9 | 94.7 ± 12.3 |
t | 1.417 | 1.877 | 0.665 | 2.529 | 2.640 |
P value | 0.158 | 0.062 | 0.507 | 0.012 | 0.009 |
Family per capita monthly income (yuan) | |||||
< 3000 | 39.5 ± 6.4 | 27.4 ± 4.4 | 10.3 ± 2.2 | 18.6 ± 3.2 | 95.8 ± 14.3 |
3001–5000 | 41.0 ± 7.8 | 28.3 ± 5.5 | 10.6 ± 2.2 | 19.5 ± 4.0 | 101.3 ± 10.7 |
5001–10,000 | 42.3 ± 4.6 | 29.8 ± 3.3 | 11.2 ± 2.0 | 20.3 ± 3.1 | 103.5 ± 9.8 |
> 10,000 | 44.3 ± 4.6 | 30.1 ± 3.1 | 11.8 ± 2.2 | 21.6 ± 2.8 | 107.8 ± 8.0 |
F | 4.298 | 3.312 | 3.870 | 5.393 | 7.103 |
P value | 0.006 | 0.021 | 0.010 | 0.001 | < 0.001 |
Husband’s education level | |||||
Junior High and below | 36.5 ± 13.1 | 25.7 ± 9.2 | 9.1 ± 3.3 | 16.4 ± 5.9 | 96.4 ± 11.6 |
Senior High | 41.8 ± 5.5 | 30.3 ± 3.7 | 11.1 ± 1.9 | 19.9 ± 2.9 | 103.2 ± 11.4 |
Junior college | 42.0 ± 5.5 | 28.8 ± 4.1 | 10.9 ± 2.1 | 19.9 ± 2.8 | 101.6 ± 12.2 |
Bachelor or above | 43.1 ± 4.7 | 29.3 ± 3.3 | 11.2 ± 2.2 | 20.8 ± 3.4 | 104.7 ± 9.5 |
F | 4.612 | 4.029 | 3.350 | 6.640 | 2.683 |
P value | 0.014 | 0.008 | 0.020 | < 0.001 | 0.048 |
Gestational age (week) | |||||
≤ 36+ 6 | 40.3 ± 5.6 | 28.4 ± 4.1 | 10.5 ± 2.0 | 19.3 ± 3.0 | 98.5 ± 12.0 |
≥ 37 | 42.8 ± 5.8 | 29.6 ± 4.0 | 11.2 ± 2.2 | 20.5 ± 3.5 | 104.8 ± 9.7 |
t | −2.571 | −1.732 | −1.765 | −2.201 | −3.598 |
P value | 0.011 | 0.085 | 0.079 | 0.029 | < 0.001 |
Breastfeeding health education | |||||
Yes | 43.0 ± 6.4 | 29.8 ± 4.3 | 11.3 ± 2.4 | 20.7 ± 3.4 | 105.7 ± 9.8 |
No | 41.4 ± 5.0 | 28.7 ± 3.7 | 10.8 ± 1.9 | 19.8 ± 3.5 | 100.7 ± 10.7 |
t | −2.100 | −1.524 | −1.574 | −1.853 | −3.335 |
P value | 0.037 | 0.129 | 0.117 | 0.065 | 0.001 |
Number of knowledge source | |||||
1 | 40.7 ± 7.0 | 28.4 ± 4.8 | 10.5 ± 2.3 | 19.3 ± 3.8 | 100.0 ± 11.5 |
≥ 2 | 43.5 ± 4.5 | 30.0 ± 3.3 | 11.4 ± 2.0 | 21.0 ± 2.9 | 105.9 ± 8.9 |
t | −3.562 | −2.803 | −3.243 | − 3.768 | −4.206 |
P value | < 0.001 | 0.006 | 0.001 | < 0.001 | < 0.001 |