Study [Ref.]
|
Quality evaluation of prognosis study
|
Total scorea
|
Level of evidenceb
|
---|
Study participation
|
Study attrition
|
Prognostic factor measurement
|
Outcome measurement
|
Study confounding
|
Statistical analysis and reporting
|
---|
Jia 2019 [44]
|
Yes
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
7
|
2b
|
Peng 2018 [18]
|
Yes
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
7
|
2b
|
Liu 2018 [45]
|
Yes
|
Partly
|
Partly
|
Yes
|
Partly
|
Yes
|
5
|
2b
|
Yang 2018 [46]
|
Yes
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
7
|
2b
|
Asukai 2017 [16]
|
Partly
|
Partly
|
Partly
|
Yes
|
Partly
|
Partly
|
6
|
2b
|
Zhou 2017 [47]
|
Yes
|
Partly
|
Yes
|
Partly
|
Partly
|
Partly
|
7
|
2b
|
Chen 2016 [11]
|
Yes
|
Partly
|
Yes
|
Partly
|
Partly
|
Partly
|
5
|
2b
|
Jiang 2016 [17]
|
Partly
|
Partly
|
Partly
|
Yes
|
Partly
|
Partly
|
5
|
2b
|
Yuan 2016 [14]
|
Yes
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
8
|
1b
|
He 2014 [15]
|
Yes
|
Yes
|
Yes
|
Yes
|
Partly
|
Yes
|
8
|
1b
|
Li 2014 [21]
|
Yes
|
Yes
|
Yes
|
Yes
|
Partly
|
Yes
|
7
|
2b
|
Wang 2012 [48]
|
Partly
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
6
|
2b
|
Hashimoto 2019 [49]
|
Yes
|
Yes
|
Yes
|
Yes
|
Partly
|
Yes
|
8
|
1b
|
Ulivi 2019 [50]
|
Partly
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
6
|
2b
|
Hu 2018 [51]
|
Yes
|
Yes
|
Yes
|
Partly
|
Partly
|
Partly
|
9
|
2b
|
Ecke 2017 [52]
|
Yes
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
7
|
2b
|
Li 2017 [22]
|
Yes
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
7
|
2b
|
Chang 2016 [23]
|
Yes
|
Yes
|
Yes
|
Partly
|
Partly
|
Partly
|
8
|
2b
|
Sheng 2015 [24]
|
Partly
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
7
|
2b
|
Kjersem 2014 [30]
|
Partly
|
Partly
|
Yes
|
Partly
|
Partly
|
Partly
|
6
|
2b
|
Wang 2014 [25]
|
Partly
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
7
|
2b
|
Colangelo 2013 [26]
|
Partly
|
Partly
|
Yes
|
Partly
|
Partly
|
Partly
|
5
|
2b
|
Zhao 2013 [31]
|
Partly
|
Partly
|
Yes
|
Yes
|
Partly
|
Yes
|
6
|
2b
|
Nakatani 2012 [53]
|
Partly
|
Partly
|
Partly
|
Yes
|
Partly
|
Yes
|
5
|
2b
|
- aQuality assessment of included studies based on the Newcastle–Ottawa Scale
- bThe levels of evidence were estimated for all included studies with the Oxford Centre for Evidence Based Medicine criteria