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Table 1 Characteristics of the eligible studies

From: A systematic review and meta-analysis of the seroprevalence of Toxoplasma gondii in cats in mainland China

Author Year Region Period of study Serological method Positivity Detailed information on cats Total no. of cats No. of positive cats (%) Quality score
Fu et al. [36] 1995 Shandong 1991–1993 IHAa ≥ 1:64 No 200 92 (46.00) 8
Lu et al. [41] 1997 Shanghai 1994–1995 IHAb ≥ 1:80 Gender, age, Season 142 54 (38.01) 10
Chen et al. [32] 2001 Hubei   ELISAf IgG or CAg positive No 105 33 (31.43) 8
Zhao et al. [58] 2001 Shandong   IHAa ≥ 1:64 No 185 82 (44.32) 7
Chen et al. [66] 2003 Shenzhen, Guangdong   IHAa ≥ 1:64 No 65 12 (18.46) 6
Yuan et al. [54] 2004 Baoding, Hebei 2000–2001 ELISAg IgG or CAg positive No 75 43 (57.33) 9
Yu et al. [53] 2006 Beijing   ELISAc IgG positive Gender, age 128 18 (14.06) 9
Dubey et al. [35] 2007 Guangzhou, Guangdong 2006 MAT ≥ 1:40 No 34 27 (79.41) 6
Yu et al. [51] 2008 Beijing 1999–2005 ELISAc IgG positive Gender, age 335 50 (14.93) 9
Huang et al. [38] 2008 Haikou, Hainan 2007–2008 ELISAd IgG positive No 251 14 (5.58) 8
Zhang et al. [56] 2009 Guangzhou, Guangdong   ELISAd IgG positive Stray or pet, gender, age 206 52 (25.24) 9
Sun et al. [46] 2009 Beijing and neighbor 2008 ELISAc IgG positive Gender 172 32 (18.60) 8
Zhang et al. [64] 2009 Beijiang, Xinjiang   IHAa ≥ 1:64 No 42 3 (7.14) 8
Lu et al. [40] 2010 Huhehaote, Inner Monglia 2009–2010 ELISAe IgG positive Gender 87 9 (10.34) 9
Lu et al. [65] 2010 Lanzhou, Gansu 2008–2009 Test Paperk antigen positive Age 159 14 (8.81) 8
Xie et al. [50] 2010 Shenzhen, Guangdong 2009–2010 ELISAd IgG positive No 278 13 (4.68) 9
Zhang et al. [55] 2010 Zhengzhou, Henan 2009 IHAa ≥ 1:64 Gender, age 58 9 (15.52) 10
Chen et al. [62] 2010 Shanghai 2009–2009 IHAa ≥ 1:64 Stray or pet 270 65 (24.07) 9
Qian et al. [45] 2010 Beijing   ELISAh IgG positive Stray or pet 323 58 (17.96) 8
Huang et al. [37] 2011 Zhejiang   Test Paperk antigen positive Stray or pet 341 91 (26.69) 10
Wu et al. [49] 2011 Lanzhou, Gansu 2010–2011 MAT ≥ 1:25 Stray or pet, Gender, age 221 47 (21.27) 10
Wang et al. [48] 2012 Shanghai 2010–2011 ELISAd IgG positive Gender, age 145 25 (17.24) 10
Qian et al. [44] 2012 Beijing 2009–2011 MAT ≥ 1:20 No 64 37 (57.81) 8
Qi et al. [43] 2012 Beijing 2011 IHAa ≥ 1:64 No 176 7 (3.98) 9
Wang et al. [47] 2012 Zhengzhou, Henan 2010–2011 IHAa ≥ 1:64 Age 195 102 (52.31) 10
Cui et al. [63] 2012 Beijing 2010–2011 ELISAc IgG positive Age, gender, season 561 119 (21.21) 8
Yu et al. [52] 2013 Pudong, Shanghai   ELISAc IgG positive Stray or pet 27 5 (18.52) 8
Zhuo et al. [60] 2013 Taizhou, Jiangsu 2012 IHAa ≥ 1:64 No 215 43 (20.00) 9
Wang et al. [69] 2013 Fujian 2012 ELISAd IgG positive No 530 238 (45.00) 7
Liu et al. [39] 2014 Zhenjiang, Jiangsu 2013 ELISAd IgG positive Stray or pet 116 24 (20.69) 10
Deng et al. [34] 2014 Changsha, Hunan 2011–2012 ELISAc IgG positive Gender, age 75 21 (28.00) 10
Fu et al. [67] 2014 Xuzhou, Jiangsu 2010–2012 ELISAc IgG positive No 41 17 (41.46) 8
Zhao et al. [57] 2015 Beijing 2012–2014 ELISAc IgG positive Season 286 60 (20.98) 9
Deng et al. [33] 2015 Shanghai 2014 ELISAi IgG positive No 91 5 (5.49) 8
Lai et al. [68] 2015 Beijing 2013 ELISAi IgG positive No 48 2 (4.17) 8
Mayilai et al. [42] 2015 Kuche, Xinjiang 2014 ELISAj IgG positive Gender, age 87 34 (39.08) 8
Zheng et al. [59] 2015 Shandong 2012–2013 ELISAe IgG positive Gender, age 589 23 (3.90) 10
Cong et al. [61] 2016 Lanzhou, Gansu 2014–2015 MAT ≥ 1:25 Stray or pet, Gender, age 362 70 (19.34) 10
  1. Abbreviations: ELISA Enzyme Linked Immunosorbent Assay, IHA Indirect Haemagglutination test, MAT Modified Agglutination Test, Test Paper, test paper for TOXO-Ag
  2. aThe test kits were produced by Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science (Cut-off titer 1:64)
  3. bBy Shanghai No. 2 Medical School, Parasite Research Section (Cut-off titer 1:80)
  4. cBy Zhuhai S.E.Z Haitai Biological Pharmaceuticals Co., Ltd. (IgG positive)
  5. dBy Shenzhen Combined Biotech Co., Ltd. (IgG positive)
  6. eBy Shanghai Touching Technology Co., Ltd. (IgG positive)
  7. fBy Hubei Academy of Medical Sciences (IgG or CAg positive)
  8. gBy Zhejiang Institute of Parasitic Disease (IgG or CAg positive)
  9. hBy Animal Medicine College, China Agricultural University (IgG positive)
  10. iBy French ID-VET company (IgG positive)
  11. jBy Parasite Laboratory of Xinjiang Agricultural University (IgG positive)
  12. kBy Quicking Biotech Co., Ltd. (antigen positive)
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