Iron deficiency anemia associated factors and early childhood caries in Qingdao

BMC Oral Health

Table 1 Characteristics of population and sociology

	Variables	Numbers	Frequency (%)
Sex	Boys	854	53.4
Sex	Girls	744	46.6
Age	4 years old	605	37.9
	5 years old	562	35.2
	6 years old	431	26.9
IDA history during pregnancy	Yes	292	18.3
IDA history during pregnancy	No	1306	81.7
Annual family income (ten thousand RMB)	0~	262	16.4
	5~	517	32.4
	10~	529	33.1
	20~	290	18.1
The frequency of children's meat intake	Rarely or never	184	11.5
	Once to three times a week	831	52
	Once a day or more	583	36.5
IDA history at age 2 or below	Yes	105	6.6
IDA history at age 2 or below	No	1493	93.4
Duration of breastfeeding up to age 2	Yes	146	9.1
Duration of breastfeeding up to age 2	No	1452	90.9
Children's intake of iron supplements	Yes	176	11
Children's intake of iron supplements	No	1422	89
Iron deficiency anemia	Yes	93	5.8
Iron deficiency anemia	No	1505	94.2

ISSN: 1472-6831