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Table 1 Characteristics of 10 studies included in the meta-analysis

From: The association between human papillomavirus 16 and esophageal cancer in Chinese population: a meta-analysis

Reference Region Number of HPV 16 positive in cases HPV16 prevalence in cases Number of HPV 16 positive in controls HPV 16 prevalence in controls Types of specimen1 HPV detection method
Liu et al. [17] Chongqing 43/112 0.38 4/74 0.05 FF L1
He et al. [18] Henan 56/110 0.51 7/45 0.16 FE E6
Chen et al. [19] Xinjiang 34/80 0.43 11/80 0.14 FE E6
Liu et al. [20] Shaanxi 35/69 0.51 2/32 0.06 FE E6
Han and Chen [21] Shandong 121/204 0.59 12/102 0.12 FE L1
Guo et al. [22] Henan 70/300 0.23 21/900 0.02 FF L1
Hu et al. [23] Xinjiang 82/200 0.41 24/150 0.16 FE E6
Liu et al. [24] Henan 54/78 0.69 11/30 0.37 FF L1
Zhang et al. [38] Guangdong 62/106 0.58 22/100 0.22 FE E6
Cui et al. [26] Xinjiang 53/183 0.29 8/89 0.09 FE L1
  1. 1FF: Fresh-Frozen; PE: Paraffin-Embedded.