Table 3.

The couples’ needs to improve preconception health care

	Jiangsu		Hebei		Rate ratio	95%CI
	N(%)		N(%)
Immunization
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
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
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
Contraception	338	(33.4%)	303	(16.9%)	1.981	1.731-2.266