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

BMC Cancer

Table 1 Characteristics of 10 studies included in the 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

ISSN: 1471-2407