Table 1 Study design, level of evidence (LE) and Quality Assessment Score (MINORS for observational studies, RoB 2 for randomized controlled trials) for individual studies
Author | Study design | LE | Quality Assessment |
|---|---|---|---|
Atanaskova Mesinkovska et al. [24] | Cohort | III | MINORS 14/24 |
Carlsson and Möller [25] | Cohort | III | MINORS 10/16 |
Carossino et al. [28] | Case–control | IV | MINORS 15/24 |
Desai et al. [29] | Case-series | IV | MINORS 12/16 |
Frigerio et al. [30] | Case-series | IV | MINORS 10/16 |
Granchi et al. [7] | Case–control | IV | MINORS 22/24 |
Guenther et al. [31] | Case-series | IV | MINORS 10/16 |
Innocenti et al. [32] | Case-series | IV | MINORS 10/16 |
Kitagawa et al. [26] | Cohort | III | MINORS 18/24 |
Kręcisz et al. [27] | Cohort | III | MINORS 11/16 |
Lützner et al. [42] | RCT | II | RoB 2—high risk of bias |
Sasseville et al. [33] | Case-series | IV | MINORS 11/16 |
Tam et al. [34] | Case-series | IV | MINORS 11/16 |
Thomas et al. [35] | Case-control | IV | MINORS 11/24 |
Thomas et al. [36] | Case-series | IV | MINORS 12/16 |
Thomas et al. [37] | Case-control | IV | MINORS 9/24 |
Treudler and Simon [38] | Case-series | IV | MINORS 8/16 |
Verma et al. [39] | Case-series | IV | MINORS 3/16 |
Webley et al. [40] | Case-control | IV | MINORS 11/24 |
Zeng et al. [41] | Case-series | IV | MINORS 9/16 |