Anemia status of infants and young children aged six to thirty-six months in Ma'anshan City: A retrospective study

Table 4 The difference of anemia rate in children of different ages and different genders and different regions, n (%)

Age	Category	n	Prevalence rate	Absence of prevalence	χ2	P value
6 mo	Male	15244	2152 (14.1)	13092 (85.9)	24.126	< 0.001
	Female	14047	1710 (12.2)	12337 (87.8)
	Urban	10453	1088 (10.4)	9365 (89.6)	109.457	< 0.001
	Rural	18838	2774 (14.7)	16064 (85.3)
9 mo	Male	3821	774 (20.3)	3047 (79.7)	2.626	0.105
	Female	3284	615 (18.7)	2762 (85.8)
	Urban	3219	457 (14.2)	2762 (92.6)	107.215	< 0.001
	Rural	3886	932 (24.0)	2954 (76.0)
12 mo	Male	9065	879 (9.7)	8186 (90.3)	0.020	0.887
	Female	8309	811 (9.8)	7498 (90.2)
	Urban	7106	450 (6.3)	6656 (93.7)	157.778	< 0.001
	Rural	10268	1240 (12.1)	9028 (87.9)
24 mo	Male	7704	174 (2.3)	7530 (97.7)	4.268	0.039
	Female	7095	198 (2.8)	6897 (97.2)
	Urban	4968	120 (2.4)	4848 (97.6)	0.294	0.587
	Rural	9831	252 (2.6)	9579 (97.4)
36 mo	Male	2562	57 (2.2)	2505 (97.8)	0.005	0.943
	Female	3277	72 (2.2)	3205 (97.8)
	Urban	1864	43 (2.3)	1821 (97.7)	0.121	0.728
	Rural	3975	86 (2.2)	3889 (97.8)