Author (year) | Selection | Comparability | Outcome/Exposure | NOS score |
|---|
Dhas [34 ] | ★★★★ | ★ | ★★★ | 8 |
Mahat [39] | ★★★★ | ★ | ★★★ | 8 |
- ★: The NOS consists of eight items categorized into three aspects. Each numbered item can score one star if the study is eligible. A maximum of four stars can be awarded for selection, two stars for comparability, and three stars for outcome or exposure
