A meta-analysis of the relationship between vaginal microecology, human papillomavirus infection and cervical intraepithelial neoplasia

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

Authors	Year of publication	Study type	Type	Number of case	Number of control	risk factors	Quality
da Silva et al. [23]	2004	Case-control	HPV	26	26	bh	7
Gao et al. [24]	2013	Case-control	HPV	32	38	g	7
Lu et al. [25]	2015	Case-control	HPV	1738	1764	bd	6
Caiyan et al. [26]	2012	Case-control	CIN/HPV	374/622	5985/5590	bch	7
Marks et al. [27]	2015	Case-control	HPV	289	912	bd	7
Behbakht et al. [28]	2002	Case-control	CIN	17	34	b	6
Liu et al. [29]	2016	Case-control	HPV	1452	2838	bcde	7
Murta et al. [30]	2000	Case-control	HPV	390	396	ch	7
Rahkola et al. [31]	2009	Case-control	HPV	175	153	b	7
Zhang et al. [32]^a	2017	Case-control	HPV	76	878	bcdeh	6
Schiff et al. [33]	2000	Case-control	CIN	112	326	bcd	7
Verteramo et al. [34]	2009	Case-control	HPV	266	591	bcdeh	7
Barcelos et al. [35]	2011	Case-control	CIN	70	30	bch	7

Note:b (BV), c (TV), d (CT), e (UU), g (Lactobacillus), h (VVC). ^aa one participant in 954 women with the laboratory results of vaginal swab specimens missed the data of Candida, CT and UU

ISSN: 1750-9378