Table 2.
Evaluation of NOS scale of included articles.
| Author | Selection | Comparability | Outcome | Scores | |||||
|---|---|---|---|---|---|---|---|---|---|
| Representativeness of the cohort | Selection of the non exposed cohort | Ascertainment of exposure | Demonstration that outcome of interest was ont present at start of study | Comparability of cases and controls on the basis of the design or analysis | Assessment of outcome | Was follow-up long enough for outcomes to occur | Adequacy of follow up of cohorts | ||
| Vittorio Pengo[6] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
| Frederikus A. Klok[7] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
| David Martί[8] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
| Laurent Guérin[9] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
| F.A. Klok[10] | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
| Suqiao Yang[11] | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
| Chih-Hsin Hsu[12] | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
| Farid Rashidi[13] | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
| Gudula J. A. M. Boon[14] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
| Carlos Aranda[15] | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
| D. Martinez[16] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
NOS = Newcastle–Ottawa scale.