Table 2.
The three systematic reviews used in this study
| Name | O | N | n | I | Topic |
|---|---|---|---|---|---|
| Hamra 2014 [14] | 604 | 615 | 615 | 17 (2.7%) | Outdoor particulate matter exposure and lung cancer |
| Johnson 2014 [15] | 3023 | 3023 | 2470 | 17 (0.7%) | PFOA effects on fetal growth |
| Thayer 2013* [16] | 2054 | 1880 | 11 (0.6%) | Bisphenol A (BPA) exposure and obesity |
The list of relevant studies was provided by the authors
O original number of articles reported in the original review, N number of articles in our search results, n number of articles with abstracts, I number of included articles in the systematic review
*Thayer 2013 provides a search protocol and no search results