Study name | Selection of subjects | Comparability | Exposure |
|---|
Q1 | Q2 | Q3 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 | Score |
|---|
Gray et al. | Y | Y | N | Y | Y | N | Y | Y | Y | 7 |
Winsa et al. | Y | Y | Y | Y | Y | Y | Y | Y | Y | 9 |
Sonino et al. | Y | Y | Y | Y | Y | Y | Y | Y | N | 8 |
Kung et al. | Y | Y | Y | Y | Y | Y | N | Y | N | 7 |
Radosavljević et al. | Y | Y | N | Y | Y | Y | Y | Y | Y | 8 |
Yoshiuchi et al. | Y | Y | N | Y | Y | Y | Y | Y | N | 7 |
Matos-Santos et al. | Y | Y | Y | Y | Y | N | Y | Y | Y | 8 |
Pintor et al. | Y | Y | N | Y | N | Y | Y | Y | N | 6 |
Topcu et al. | Y | Y | N | Y | Y | N | Y | Y | Y | 7 |
| | Selection | Comparability | Outcome | |
| | Q1* | Q2 | Q3 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 | |
Yoshichi et al. | Y | Y | Y | Y | Y | Y | N | Y | N | 7 |
Fukao et al. | Y | Y | Y | Y | Y | Y | N | Y | Y | 8 |
Chen et al. | Y | Y | Y | Y | Y | Y | N | Y | Y | 8 |
Vita et al. | Y | Y | Y | Y | Y | Y | Y | Y | Y | 9 |
- Q1-Q9: Question 1 to question 9 used to assessment the quality of case control studies in the Newcastle - Ottawa Quality Assessment Scale.
- Q1. Is the case definition adequate? Q2. Representativeness of the cases; Q3. Selection of Controls; Q4. Definition of Controls?
- Q5. Were study controls selected as the most important factor? Q6. Were any additional factors for study controls? Q7. Ascertainment of exposure;
- Q8. Was same method of ascertainment for cases and controls ? Q9. Non-Response rate;
- Q1*-Q9: Question 1 to question 9 used to assessment the quality of cohort studies in the Newcastle - Ottawa Quality Assessment Scale.
- Q1. Representativeness of the exposed cohort; Q2. Selection of the non-exposed cohort; Q3. Ascertainment of exposure;
- Q4. Demonstration that outcome of interest was not present at start of study; Q5. controls for age, sex and marital status; Q6. Study controls for other factors;
- Q7. Assessment of outcome Q8. Was follow-up long enough for outcomes to occur? Q9. Adequacy of follow-up of cohorts;
- Y, yes; N, no;
