Study | 1 | 2 | 3 | 4 | 5A | 5B | 6 | 7 | 8 |
|---|
Force [6] | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Yes |
Shigemura [4] | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes |
Aguila [2] | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes |
Rafiroiu [5] | Yes | Yes | Yes | No | Yes | No | Yes | Yes | Yes |
- 1, indicates exposed cohort truly representative; 2, non-exposed cohort drawn from the same community; 3, ascertainment of exposure; 4, outcome of interest not present at start; 5A, cohorts comparable on basis of age; 5B, cohorts comparable on other factor(s); 6, quality of outcome assessment; 7, follow-up long enough for outcomes to occur; and 8, complete accounting for cohorts
