Lack of Association between Common Polymorphisms in Selenoprotein P Gene and Susceptibility to Colorectal Cancer, Breast Cancer, and Prostate Cancer: A Meta-Analysis

Table 1

Methodological quality of the included studies according to the Newcastle-Ottawa Scale.

Variants	Author	Representativeness of cases	Source of controls	HWE in controls	Genotyping examination	Association assessment	Total scores
rs7579	Meplan et al.				0		8
	Steinbrecher et al.				0		8
	Meplan et al.				0		5
	Sutherland et al.				0		6
	Amini et al.				0		7
rs3877899	Steinbrecher et al.				0		8
	Cooper et al.				0		8
	Geybels et al.				0		8
	Karunasinghe et al.				0		8
	Meplan et al.				0		5
	Sutherland et al.				0		7
	Meplan et al.				0		8
	Jablonska et al.				0		8
	Mohammaddoust et al.				0		7

This table identifies “high” quality choices with a “star.” A study can be awarded a maximum of one star for each numbered item within the selection and exposure categories. A maximum of 2 stars can be given for comparability.