Table 2.
Quality assessment of included study based on the Newcastle-Ottawa Scale.
References | Selection (score) | Comparability (score) | Outcome (score) | ||||||
---|---|---|---|---|---|---|---|---|---|
Representativeness of the exposed cohort | Selection of the non-exposed cohort | Ascertainment of exposure | Outcome of interest was not present at start of study | Based on the design or analysis | Assessment of outcome | Follow-up long enough for outcomes to occur | Adequacy of follow-up of cohorts | Total score | |
Amick et al. (21) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Ballabeni et al. (22) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Busse et al. (23) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Clay et al. (24–26) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Clay et al. (27) | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 0 | 8 |
Dinh et al. (28) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Eisele et al. (29) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Ekegren et al. (30) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Gabbe et al. (31) | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 6 |
Hou et al. (32) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 8 |
Hou et al. (33) | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 0 | 8 |
Iakova et al. (34) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 8 |
Izadi et al. (35) | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 5 |
Kendrick et al. (36) | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 0 | 8 |
Kendrick et al. (37) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Kimmel et al. (38) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 7 |
Kirkeby et al. (39) | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 6 |
Kong et al. (40) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Lilley et al. (41) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Luthi et al. (42) | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 0 | 8 |
Marom et al. (43) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 8 |
Marom et al. (44) | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
Murgatroyd et al. (45) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 8 |
Neutel et al. (46) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 8 |
Roesler et al. (47) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Tay et al. (48) | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 6 |
Vuistiner et al. (49) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 7 |
Yang et al. (50) | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 8 |