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Table 1 The characteristics and results of quality assessment of the included studies

From: The pharyngeal carriage of Haemophilus influenzae among healthy population in China: a systematic review and meta-analysis

Literature Period Region Sample size Age of subjects Inspection methods Participants with Hi Quality assessment
Liu Q, 1993 [7] 1989–1990 Beijing 115 2~6y Culture, Hi grouping serum 37 7
Lai G, 1997 [8] 1996.01 Shanghai 181 2~11y Culture 49 6
Wang G, 1999 [9] / Shanghai 255 ≤18y Culture, Hi grouping serum 66 6
Zhang Y, 2000 [10] 1999 Zhangjiakou; Hebei province 319 4~60y Culture 73 7
Chen L, 2000 [11] / Wuhan; Hubei province 52 / Culture 6 6
Zhang H, 2001 [12] 1998–1999 Fuzhou; Fujian province 2053 3~6y Culture 403 7
Cao G, 2002 [13] 2000–2001 Hangzhou; Zhejiang province 897 4~7y Culture 159 7
Chen Q, 2002 [14] 1998–2001 Nanchang; Jiangxi province 60 1 m-14y Culture 1 6
Hou A, 2002 [15] 1995–2000 Beijing 307 ≤13y Culture 20 7
Luo X, 2002 [16] / Zhongshan; Guangdong province 178 18-56y Culture 46 6
Chen Z, 2002 [17] / Hangzhou; Zhejiang province 37 25.8 ± 9.8 m Culture, PCR 3 6
Zhou H, 2003 [18] 2001–2001 Guangzhou; Guangdong province 150 3~5y Culture 37 6
Zeng Y, 2003 [19] / Chongqing 400 ≤5y Culture 64 6
Hua C, 2005 [20] 2002–2003 Hangzhou; Zhejiang province 848 2~5y Culture, Hi grouping serum 217 6
Zhao X, 2005 [21] 2002 Zhongshan; Guangdong province 327 6-9y Culture 39 6
Luo X, 2006 [22] 2003 Zhongshan; Guangdong province 186 3-6y Culture 45 7
Liu L, 2007 [23] / Chongqing 150 / Culture 15 7
Lai Z, 2007 [24] / Dongguan; Guangdong province 546 4-6y Culture 109 7
Li R, 2007 [25] 2001 Shijiazhuang; Hebei province 890 ≤5y Culture 139 8
Chen D, 2007 [26] / Beijing 561 3-6y Culture 134 6
Wu T, 2007 [27] 2006–2006 Danyang, Binhai; Jiangsu province 656 ≤5y Culture, PCR 389 7
Dong H, 2008 [28] 2005–2005 Shanghai 501 60-92y Culture 38 7
Wang F, 2009 [29] 2007–2008 Jianggan; Zhejiang province 101 ≤5y Culture, Hi grouping serum, PCR 21 7
Sun J, 2009 [30] 2008–2008 Shenzhen; Guangdong province 380 all ages Culture, PCR 121 8
Chen H, 2009 [31] / Shenzhen; Guangdong province 181 3~6y Culture 45 6
Ye J, 2009 [32] 2007–2008 Changshan, Dongyang, Jianggan; Zhejiang province 301 ≤5y Culture, Hi grouping serum 43 7
Meng X, 2009 [33] / Shenzhen; Guangdong province 360 3-7y Culture, Hi grouping serum 90 7
Zhang J. 2010 [34] 2009 Quzhou; Zhejiang province 70 3-5y Culture, Hi grouping serum 12 6
Li Y, 2010 [35] 2008 Dongyang; Zhejiang province 238 ≥6 m Culture, Hi grouping serum 21 6
Wang J, 2010 [36] 2007–2009 Weihai; Shandong province 820 / Culture 98 6
Zhang L, 2011 [37] / Dongguan; Guangdong province 600 12-18 m Culture 25 7
Di M, 2012 [38] 2010–2011 Dongcheng; Beijing 834 1–12y Culture, Hi grouping serum 73 7
Ye Y, 2012 [39] / Jinshan; Shanghai 390 children & 240 elders ≤14y & 60-80y Culture 82 7
Ping G, 2013 [40] 2009–2010 Xuanwu; Beijing 600 12-18 m Culture 27 7
Zhai R, 2013 [41] / / 158 20-34y Culture 8 6
Qiao H, 2013 [42] 2010 Zhangjiakou; Hebei province 100 3-5y Culture, PCR 31 6
Chen X, 2013 [43] / / 400 / Culture 125 6
Wang Y, 2013 [44] / Baoding; Hebei province 162 all ages Culture, Real-time PCR 62 8
Xiong W, 2014 [45] 2013 Chongqing 150 ≤6y Culture 11 6
Zhai R, 2014 [46] / / 70 17-32y Culture 11 6
Zhao X, 2015 [5] 2012–2013 Huairou; Beijing 472 2–5y Culture 45 6
Pan H, 2016 [4] 2010–2011 Chaoshan; Guangdong province 1088 2-6y Culture 20 8
  1. /: The information were not described. PCR: Polymerase chain reaction