Table 2. Assessment of risk of bias of included articles.
Author, year | Study Participants | Predictors | Outcome | Sample size and missing data | Overall |
---|---|---|---|---|---|
Genetic risk factors alone | |||||
Dunlop 2013a | + | + | + | + | + |
Frampton 2016 | ? | + | + | ? | ? |
Hosono 2016a | ? | ? | + | ? | ? |
Huyghe 2019 | + | + | + | ? | + |
Ibanez-Sanz 2017a | + | + | + | ? | + |
Jenkins 2016, 2019 | + | + | + | ? | + |
Smith 2018a | + | + | + | + | + |
Wang 2013 | ? | − | + | ? | − |
Xin 2018a | ? | + | + | ? | ? |
Genetic plus phenotypic risk factors excluding age | |||||
Ibanez-Sanz 2017b | + | + | + | ? | + |
Jeon 2018a and b | + | + | + | ? | + |
Procopciuc 2017 | − | ? | + | − | − |
Xin 2018b | ? | ? | + | ? | ? |
Yarnell 2013 | ? | + | + | ? | ? |
Genetic plus phenotypic risk factors plus age | |||||
Abe 2017 | ? | + | + | ? | ? |
Dunlop 2013b | + | ? | + | + | + |
Hosono 2016b | ? | ? | + | ? | ? |
Hsu 2015b | + | ? | + | ? | ? |
Iwasaki 2017b | + | + | + | ? | + |
Jo 2012 a and b | ? | − | + | − | − |
Jung 2015 | + | ? | + | ? | ? |
Jung 2019 | + | − | + | ? | − |
Li 2015 | ? | ? | + | ? | ? |
Shiao 2018 | − | ? | + | − | − |
Smith 2018b | + | + | + | + | + |
Smith 2018c | + | + | + | + | + |
Weigl 2018 | + | + | + | ? | + |
+ = low risk;? = unclear risk; - = high risk