Table 2.
Newcastle-Ottawa Quality Assessment Scale
| Newcastle-Ottawa Quality Assessment Scale | |||||||
|---|---|---|---|---|---|---|---|
| Title | Year of study | Study design | Power calculation | Selection (out of 4) | Comparability (out of 2) | Outcome (out of 3) | Total assessment |
| Ait Said | 2016 | Prospective cohort | Absent | 4 | 1 | 3 | Good quality |
| Burgio | 2007 | Prospective cohort | Present | 3 | 0 | 1 | Poor quality |
| Cuicchi | 2011 | Prospective cohort | Absent | 3 | 1 | 2 | Good quality |
| Elias | 2017 | Prospective cohort | Absent | 3 | 0 | 2 | Poor quality |
| Sovik | 2012 | Randomised control trial | Present | 3 | 0 | 2 | Poor quality |
| Nickel | 2016 | Cross-sectional | Absent | 3 | 0 | 2 | Poor quality |
| Fysekidis | 2012 | Cross-sectional | Absent | 3 | 0 | 2 | Poor quality |
| Lee | 2015 | Prospective cohort | Absent | 2 | 0 | 2 | Poor quality |
| Whitcomb | 2012 | Prospective cohort | Absent | 4 | 1 | 2 | Good quality |
| Sileri | 2011 | Prospective cohort | Absent | ||||
| Scorazzi | 2013 | Prospective cohort | Absent | 3 | 1 | 3 | Good quality |
| Romero-Talamas | 2016 | Prospective cohort | Absent | 3 | 0 | 2 | Poor quality |