From: Is diabetes mellitus a risk factor for low bone density: a systematic review and meta-analysis
Study | Selection | Comparability | Exposure | Quality evaluation | |||||
---|---|---|---|---|---|---|---|---|---|
Cases definition | Cases representativeness | Control selection | Controls definition | Comparability | Ascertainment of exposure | Same ascertainment | Non-response rate | ||
Shaw CK 1993 [33] | a | b | a | a | b | b | a | a | 7 |
Chumnumnawin M 2008 [34] | a | a | b | a | b | b | a | a | 7 |
El-Heis MA 2013 [35] | a | b | b | a | b | b | a | a | 6 |
Zhou R 2013 [36] | a | a | a | a | a + b | b | a | a | 8 |
Daisuke A 2015 [37] | a | a | b | a | b | b | a | a | 7 |
Saei GNM 2015 [38] | a | a | b | a | b | b | a | a | 7 |
Liu D 2016 [39] | a | a | a | a | a + b | b | a | a | 9 |
Neglia C 2016 [40] | a | b | c | a | b | b | a | a | 6 |
Dana H 2017 [41] | a | a | a | a | b | b | a | a | 8 |
Heidari B 2017 [42] | a | a | a | a | b | b | a | a | 8 |
Lee SH 2017 [43] | a | a | a | a | b | b | a | a | 8 |
Lin HH 2018 [44] | a | b | b | a | b | b | a | a | 6 |
Yoo JE 2018 [45] | a | a | b | a | a + b | b | a | a | 8 |
Wang Y 2019 [46] | a | a | b | a | b | b | a | a | 7 |