| Jiangsu | Hebei | Rate ratio | 95%CI | ||
---|---|---|---|---|---|---|
 | N(%) | N(%) |  |  | ||
Immunization | Â | Â | Â | Â | Â | Â |
 MMR | 23 | (2.3%) | 86 | (4.8%) | 0.479 | 0.301-0.747 |
 Tetanus | 24 | (2.4%) | 36 | (2.0%) | 1.200 | 0.710-1.973 |
 HBV | 123 | (12.2%) | 326 | (18.2%) | 0.670 | 0.553-0.812 |
Supplements | Â | Â | Â | Â | Â | Â |
 Folate | 805 | (79.6%) | 943 | (52.5%) | 1.516 | 1.436-1.600 |
 Iron | 191 | (18.9%) | 500 | (27.9%) | 0.678 | 0.585-0.786 |
 Calcium | 221 | (21.9%) | 600 | (33.4%) | 0.656 | 0.572-0.747 |
 Iodized salt | 535 | (52.9%) | 799 | (44.5%) | 1.189 | 1.100-1.285 |
Knowledge | Â | Â | Â | Â | Â | Â |
 Birth spacing | 725 | (71.7%) | 1360 | (75.8%) | 0.947 | 0.903-0.992 |
 STD prevention | 551 | (54.5%) | 1043 | (58.1%) | 0.938 | 0.875-1.005 |
 Genetic risk | 242 | (23.9%) | 1024 | (57.0%) | 0.420 | 0.373-0.472 |
 Healthy weight maintenance | 688 | (68.1%) | 1271 | (70.8%) | 0.961 | 0.913-1.012 |
 Micronutrient supplement | 792 | (78.3%) | 1405 | (78.3%) | 1.001 | 0.961-1.042 |
 Environmental risk | 720 | (71.2%) | 1392 | (77.5%) | 0.918 | 0.877-0.962 |
 Health check-up during pregnancy, when, why, how | 825 | (81.6%) | 1407 | (78.4%) | 1.044 | 1.004-1.084 |
Other needs | Â | Â | Â | Â | Â | Â |
 Contraception | 338 | (33.4%) | 303 | (16.9%) | 1.981 | 1.731-2.266 |