Studies included in the metaanalysis.
| First Author (Year) | Study Type | Location | Mean Age, Yrs, Case/control | Female (%) | Case/control, n | Log-OR, Current Smoker† | Log-OR, Ex-smoker† |
|---|---|---|---|---|---|---|---|
| Reidenberg (1993)36 | Case-control | USA | 38/37 | 88.5 | 195/143 | 0.6918 | 0.8491 |
| Nagata (1995)37 | Case-control | Japan | 33/37 | 100 | 282/292 | 2.2331 | 0.9978 |
| Hardy (1998)38 | Case-control | UK | 47/47 | 92.0 | 150/300 | 1.6601 | 0.8977 |
| Böckle (2015)39 | Case-control | Austria | 43.3/NA | 84.7 | 186/101 | 2.5564 | NA |
| Washio (2006)51 | Case-control | Japan | 31.7/33.6 | 100 | 175/517 | 2.8448 | 2.9110 |
| Ekblom-Kullberg (2013)40 | Case-control | Finland | 47.1/47.8 | 100 | 205/862 | 1.5541 | 1.8053 |
| Young (2014)41 | Case-control | USA | 41.7/41.7 | 79.3 | 1242/946 | 1.0570 | 1.1779 |
| Benoni (1990)42 | Case-control | Sweden | NA | 85.8 | 56/99 | 1.6867 | 1.4000 |
| Cooper (2001)43 | Case-control | USA | NA | 90.5 | 265/355 | 0.8810 | 0.4820 |
| Ghaussy (2001)44 | Case-control | USA | 44/44 | 96.8 | 125/125 | 3.8367 | 2.7668 |
| Formica (2003)45 | Cohort | USA, African American | NA | 100 | 67/53,924 | 1.7686 | 2.0720 |
| Barbhaiya (2018)21 | Cohort | USA, nurses from NHS* | 49.2* | 100 | 286/230,672 | 0.8131 | 1.6088 |