Studies
Primary studies
26,293 studies included by 1,022 non-Cochrane dental reviews extracted from full text, one record per study, so a study included by several reviews is counted once. Most are randomized trials; etiology and diagnostic reviews also include observational and accuracy studies. Cochrane reviews and reviews with only their headline outcomes do not list their included studies here yet.
ReviewStudies included by Smoking and oral and pharyngeal cancer: a meta-analysis.. Show all studies
| Study | Year | Reviews | Review outcomes linked | Trial data |
|---|---|---|---|---|
| La Vecchia 1990 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| La Vecchia 1999 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Liaw 1998 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Lissowska 2003 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Llewellyn 2004 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Maasland 2014 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Mahapatra 2015 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Marques 2008 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Marron 2010 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Marshall 1992 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Martinez 1969 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Maurya 2015 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| McLaughlin 1995 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Merletti 1989 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Mezzoiuso 2021 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Morales 2020 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Moreno-Lopez 2000 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Muwonge 2008 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Naghibzadeh-Tahami 2024 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Nandakumar 1990 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Nordlund 1997 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Offermans 2014 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Oudjehih 2020 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Pednekar 2011 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Radoi 2013 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Radoi 2015 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Rodriguez 2004 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Saito 2013 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Sankaranarayanan 1989 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Sapkota 2007 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Schildt 1998 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Schlecht 1999 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Shewale 2021 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Smith 1998 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Smith 2010 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Subapriya 2007 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Sugimura 2006 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Szymanska 2011 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Takezaki 1996 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Takezaki 2000 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Toporcov 2015 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Tuyns 1988 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Varela-Lema 2010 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Vlajinac 2006 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Wang 2005 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Wasnik 1998 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Winn 1981 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Zavras 2001 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Zheng 1990 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |
| Znaor 2003 matched by author and year (probable) | NR | 1 | none stated | not extracted yet |