TABLE 4.
Healthy dietary patterns, typical healthy foods, and glioma: Assessment of study quality.
| References | Selection | Comparability | Outcome | |||||||
| 1 | 2 | 3 | 4 | 5A | 5B | 6 | 7 | 8 | Score | |
| Cohort | ||||||||||
| Holick et al. (10) | * | * | * | * | * | * | * | 8 | ||
| Mills et al. (42) | * | * | * | * | * | * | * | * | 8 | |
| Dubrow et al. (43) | * | * | * | * | * | * | * | * | * | 7 |
| Kuan et al. (9) | * | * | * | * | * | * | * | * | * | 8 |
| Case-control | * | * | * | * | * | * | * | |||
| Burch et al. (36) | * | * | * | * | * | * | * | * | * | 7 |
| Preston-Martin et al. (41) | * | * | * | * | * | * | * | 7 | ||
| Boeing et al. (35) | * | * | * | * | * | * | * | 7 | ||
| Giles et al. (37) | * | * | * | * | * | * | * | 7 | ||
| Blowers et al. (34) | * | * | * | * | * | * | * | 7 | ||
| Hu et al. (38) | * | * | * | * | * | * | 6 | |||
| Hu et al. (39) | * | * | * | * | * | * | 6 | |||
| Xu et al. (40) | * | * | * | * | * | * | * | 7 | ||
| Chen et al. (11) | * | * | * | * | * | * | * | 7 | ||
| Terry et al. (33) | * | * | * | * | * | * | * | 7 | ||
| Cabaniols et al. (32) | * | * | * | * | * | * | * | 7 | ||
| Benisi-Kohansal et al. (19) | * | * | * | * | * | * | 6 | |||
| Mousavi et al. (18) | * | * | * | * | * | * | 6 | |||
| Mousavi et al. (20) | * | * | * | * | * | * | 6 | |||
| Malmir et al. (21) | * | * | * | * | * | * | * | 7 | ||
| Soltani et al. (24) | * | * | * | * | * | * | 6 | |||
| Ebrahimpour-Koujan et al. (22) | * | * | * | * | * | * | * | 7 | ||
| Sadeghi et al. (23) | * | * | * | * | * | * | 6 | |||
| Ebrahimpour-Koujan et al. (25) | * | * | * | * | * | * | * | 7 | ||
| Rigi et al. (26) | * | * | * | * | * | * | 6 | |||
*For case-control studies, 1, indicates cases independently validated; 2, cases are representative of population; 3, community controls; 4, controls have no history of blood pressure disease; 5A, study controls for age; 5B, study controls for additional factor(s); 6, ascertainment of exposure by blinded interview or record; 7, same method of ascertainment used for cases and controls; and 8, non-response rate the same for cases and controls. For cohort studies, 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; 8, complete accounting for cohorts.