| Study . | Item and score . | |||||||
|---|---|---|---|---|---|---|---|---|
| Representativeness of the exposed cohort (1) . | Selection of the non-exposed cohort (1) . | Ascertainment of exposure (1) . | Demonstration that outcome of interest was not present at start of study (1) . | Comparability of cohorts on the basis of the design or analysis (2) . | Assessment of outcome (1) . | Was follow up long enough for outcomes to occur (1) . | Adequacy of follow up of cohorts (1) . | |
| Tsoi et al24 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ghosh et al25 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 |
| Zhou et al26 | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 1 |
| Seher et al27 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 |
| Tsoi et al28 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 |
| McLoughin et al29 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 |
| Study . | Item and score . | |||||||
|---|---|---|---|---|---|---|---|---|
| Representativeness of the exposed cohort (1) . | Selection of the non-exposed cohort (1) . | Ascertainment of exposure (1) . | Demonstration that outcome of interest was not present at start of study (1) . | Comparability of cohorts on the basis of the design or analysis (2) . | Assessment of outcome (1) . | Was follow up long enough for outcomes to occur (1) . | Adequacy of follow up of cohorts (1) . | |
| Tsoi et al24 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ghosh et al25 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 |
| Zhou et al26 | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 1 |
| Seher et al27 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 |
| Tsoi et al28 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 |
| McLoughin et al29 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 |
| Study . | Item and score . | |||||||
|---|---|---|---|---|---|---|---|---|
| Representativeness of the exposed cohort (1) . | Selection of the non-exposed cohort (1) . | Ascertainment of exposure (1) . | Demonstration that outcome of interest was not present at start of study (1) . | Comparability of cohorts on the basis of the design or analysis (2) . | Assessment of outcome (1) . | Was follow up long enough for outcomes to occur (1) . | Adequacy of follow up of cohorts (1) . | |
| Tsoi et al24 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ghosh et al25 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 |
| Zhou et al26 | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 1 |
| Seher et al27 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 |
| Tsoi et al28 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 |
| McLoughin et al29 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 |
| Study . | Item and score . | |||||||
|---|---|---|---|---|---|---|---|---|
| Representativeness of the exposed cohort (1) . | Selection of the non-exposed cohort (1) . | Ascertainment of exposure (1) . | Demonstration that outcome of interest was not present at start of study (1) . | Comparability of cohorts on the basis of the design or analysis (2) . | Assessment of outcome (1) . | Was follow up long enough for outcomes to occur (1) . | Adequacy of follow up of cohorts (1) . | |
| Tsoi et al24 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ghosh et al25 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 |
| Zhou et al26 | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 1 |
| Seher et al27 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 |
| Tsoi et al28 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 |
| McLoughin et al29 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 |
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