The Associations between Toll-Like Receptor 9 Gene Polymorphisms and Cervical Cancer Susceptibility

Table 1

Characteristics of the included studies.

First author	Year	Race	Number (case/control)	Study design	Source of controls	Genotyping method	Study quality (NOS)
Bi [11]	2014	Chinese Han	102/100	CC	Population	PCR-RFLP	7
Bodelon [12]	2014	Caucasian	876/1100	CC	Population	Illumina GoldenGate	8
Chen [13]	2012	Chinese Han	712/717	CC	Population	PCR-RFLP	7
Jin [14]	2017	Chinese Han	420/842	CC	Hospital	PCR-RFLP	7
Lai [15]	2013	Chinese Han	120/100	CC	Hospital	PCR-RFLP	8
Pandey [16]	2011	Caucasian	200/200	CC	Population	PCR-RFLP	7
Roszak [17]	2012	Caucasian	426/460	CC	Population	PCR-RFLP	7
Xu [18]	2017	Chinese Han	345/330	CC	Population	TaqMan	7
Zidi [19]	2016	Caucasian	130/260	CC	Population	PCR-RFLP	8

CC: case-control; PCR: polymerase chain reaction; RFLP: restriction fragment length polymorphism.