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Table 1 Region-specific prevalence of hrHPV infection by HCII

From: Nationwide prevalence of human papillomavirus infection and viral genotype distribution in 37 cities in China

Regions

Positive samples

Total samples

Infection

95 % CI of infection

rate (%)

rate (%)

Haikou

221

692

31.94

28.47–35.41

Chongqing

191

700

27.29

23.99–30.59

Jinan

2,651

10,306

25.72

24.88–26.57

Shenyang

98

387

25.32

20.99–29.65

Jilin

360

1,423

25.3

23.04–27.56

Tianjin

807

3,220

25.06

23.57–26.56

Shanghai

118

522

22.61

19.02–26.20

Nanning

1,976

8,869

22.28

21.41–23.15

Guiyang

597

2,919

20.45

18.99–21.91

Guangdong

14,567

72,763

20.02

19.73–20.31

Fuzhou

441

2,213

19.93

18.26–21.59

Chengdu

375

1,886

19.88

18.08–21.68

Hangzhou

649

3,269

19.85

18.49–21.22

Nanchang

290

1,574

18.42

16.51–20.34

Total

23,413

111,131

21.07

20.83–21.31

  1. HrHPV infection rate was different among all the regions using chi-squared test (P < 0.001). Subsequently, multiple comparisons were performed using the Bonferoni step-down procedure: marginal differences between the two most heavy-burdened cities of Haikou and Chongqing (P = 0.057), and no difference was found among the second group cities, including Jinan, Shenyang, Jilin, and Tianjin (P = 0.892), as well as the low infection rate group that included Nanchang, Changsha, Hangzhou, Chengdu, Fuzhou, Guangdong, and Guiyang (P = 0.758)