. 2017 Mar 3;7:42722. doi: 10.1038/srep42722

Table 1. Prevalence of avian influenza subtypes in 10 cities.

District	Test result	H5	H7	H9	x²	P
Hangzhou	+	0(0.0)	132(50.0)	164(62.1)	244.609	<0.001
Hangzhou	−	264(100.0)	132(50.0)	100(37.9)	244.609	<0.001
Ningbo	+	17(10.3)	3(1.8)	59(35.8)	76.756	<0.001
Ningbo	−	148(89.7)	162(98.2)	106(64.2)	76.756	<0.001
Shaoxing	+	8(3.8)	14(6.6)	35(16.6)	23.252	<0.001
Shaoxing	−	203(96.2)	197(93.4)	176(83.4)	23.252	<0.001
Huzhou	+	21(8.0)	55(21.0)	85(32.4)	48.054	<0.001
Huzhou	−	241(92.0)	207(79.0)	177(67.6)	48.054	<0.001
Jiaxing	+	6(1.7)	65(18.4)	74(21.0)	65.411	<0.001
Jiaxing	−	347(98.3)	288(81.6)	279(79.0)	65.411	<0.001
Jinhua	+	8(7.8)	29(28.2)	37(35.9)	23.917	<0.001
Jinhua	−	95(92.2)	74(71.8)	66(64.1)	23.917	<0.001
Yiwu	+	0(0.0)	3(4.1)	18(24.3)	29.348	<0.001
Yiwu	−	74(100.0)	71(95.9)	56(75.7)	29.348	<0.001
Quzhou	+	56(13.2)	52(12.3)	120(28.3)	46.684	<0.001
Quzhou	−	368(86.8)	372(87.7)	304(71.7)	46.684	<0.001
Taizhou	+	14(7.1)	27(13.8)	31(15.8)	7.502	0.023
Taizhou	−	182(92.9)	169(86.2)	165(84.2)	7.502	0.023
Lishui	+	137(16.9)	117(14.4)	243(29.9)	69.523	<0.001
Lishui	−	676(83.1)	696(85.6)	570(70.1)	69.523	<0.001
Total	+	267(9.3)	497(17.3)	866(30.2)	414.771	<0.001
Total	−	2598(90.7)	2368(82.7)	1999(69.8)	414.771	<0.001