Table 4 Newcastle Ottawa scale scores for included studies
Study ID | Selection | Comparability | Outcome | Total | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Representativeness of exposed cohort | Non-exposed cohort from same community as exposed cohort | Ascertainment of exposure | Outcome of interest not present at start of study | Study controls for socioeconomic status | Study controls for maternal age/year of birth | Assessment of outcome | Follow up long enough for outcome to occur | Adequacy of follow up | ||||||
Truly | Somewhat | Secure record | Blinded interview | Independent blind assessment | Record linkage | Complete follow up | > 95% follow up or description provided of loss to follow-up | |||||||
Zulian, 2002 [13] | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 7 |
Cole, 2013 [14] | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 5 |
Sengler, 2018 [15] | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 6 |