Table 2 Quality assessment of included studies based on Newcastle-Ottawa scale
From: Association between tooth loss and risk of oesophageal cancer: a dose–response meta-analysis
Author | Year | Selection | Comparability | Exposure |
|---|---|---|---|---|
Abnet | 2001 | 3 | 1 | 2 |
Abnet | 2005 | 3 | 2 | 2 |
Guha | 2007 | 3 | 2 | 3 |
Abnet | 2008 | 3 | 1 | 2 |
Hiraki | 2008 | 3 | 2 | 2 |
Michaud | 2008 | 3 | 1 | 3 |
Dar | 2013 | 3 | 1 | 2 |
Patel | 2013 | 2 | 0 | 2 |