| Supplement TABLE 1. Results of risk of bias diagnosis in 45 articles included in the systematic review. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Study ID | authors, year | 1. Was the sample frame appropriate to address the target population? | 2. Were study participants sampled in an appropriate way? | 3. Was the sample size adequate? | 4. Were the study subjects and the setting described in detail? | 5. Was the data analysis conducted with sufficient coverage of the identified sample? | 6. Were valid methods used for the identification of the condition? | 7. Was the condition measured in a standard, reliable way for all participants? | 8. Was there appropriate statistical analysis? | 9-1 (eradication) Are all important confounding factors/subgroup/differences identified and accounted for? | 9-1 (atrophy) Are all important confounding factors/subgroup/differences identified and accounted for? | 10. Were subpopulations identified using objective criteria? |
| 1 | Fukao, 1993 | N | N | Y | Y | NA | Y | Y | Y | N | Y | Y |
| 2 | Replogle, 1996 | N | N | Y | Y | NA | Y | Unclear | Y | N | N | Y |
| 3 | Kumagai, 1998 | Unclear | Unclear | Y | Y | Y | Y | Y | Y | N | N | Y |
| 4 | Youn, 1998 | N | N | Y | Y | Unclear | Y | Y | Y | N | N | Y |
| 5 | Kikuchi, 1998 | Unclear | N | Y | Y | Y | Y | Y | Y | N | N | Y |
| 6 | Fujisawa,1999 | Unclear | Y | Y | Y | NA | Y | Y | Y | N | N | Y |
| 7 | Yang, 1999 | Unclear | N | Y | Y | Y | Y | Y | Y | N | N | Y |
| 8 | Shibata, 2000 | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 9 | Ogihara, 2000 | Unclear | N | Y | Y | Y | Y | Unclear | Y | N | N | Y |
| 10 | Yamagata, 2000 | Y | Y | Y | Y | Y | Y | Y | Y | N | N | Y |
| 11 | Kurosawa, 2000 | Unclear | Unclear | Y | Y | Y | Y | Y | Y | N | N | Y |
| 12 | Yamaji, 2001 | N | N | Y | Y | Unclear | Y | Unclear | Y | Y | Y | Y |
| 13 | Yamashita, 2001 | N | N | Y | Y | Unclear | Y | Unclear | Y | N | N | Y |
| 14 | Shibata,2002 | Y | Y | Y | Y | Y | Y | Unclear | Y | N | Y | Y |
| 15 | Kinjo, 2002 | Y | N | Y | Y | NA | Y | Y | Y | N | N | Y |
| 16 | Fukuda, 2003 | Unclear | N | Y | N | Unclear | Y | Unclear | Y | N | N | Y |
| 17 | Matsuhisa, 2003 | N | N | N | Y | Unclear | Y | Y | Y | Y | Y | Y |
| 18 | Kato,2003 | N | N | Y | Y | Unclear | Y | Y | Y | N | N | Y |
| 19 | Kato,2004 | N | N | Y | Y | Unclear | Y | Unclear | Y | N | N | Y |
| 20 | Nobuta, 2004 | Unclear | N | Y | Y | Unclear | Y | Y | Y | N | Unclear | Y |
| 21 | Kikuchi, 2005 | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 22 | Kawade, 2005 | N | N | Y | Y | Unclear | Y | Unclear | Y | N | N | Y |
| 23 | Shimatani, 2005 | Y | N | Y | Y | Unclear | Y | Y | Y | Y | Y | Y |
| 24 | Sasazuki, 2006 | Y | Y | Y | Y | NA | Y | Y | Y | N | Y | Y |
| 25 | Fujimoto, 2007 | Unclear | Unclear | Y | Y | Unclear | Y | Unclear | Y | N | N | Y |
| 26 | Shiotani, 2008 | Unclear | N | Y | Y | Unclear | Y | Unclear | Y | N | N | Y |
| 27 | Naito, 2008 | Unclear | N | Y | Y | Unclear | Y | Y | Y | N | N | Y |
| 28 | Mizuno, 2010 | Y | N | Y | Y | Unclear | Y | Y | Y | Y | Y | Y |
| 29 | Nakajima, 2010 | N | N | Y | Y | Unclear | Y | Unclear | Y | N | N | Y |
| 30 | Kawai, 2010 | N | N | Y | Y | Unclear | Y | Unclear | Y | Y | Y | Y |
| 31 | Nakao, 2011 | N | N | Y | Y | Y | Y | Unclear | Y | N | Y | Y |
| 32 | Toyoda, 2012 | Unclear | N | Y | Y | Unclear | Y | Y | Y | Y | Y | Y |
| 33 | Tamura, 2012 | Y | N | Y | Y | Unclear | Y | Unclear | Y | Y | N | Y |
| 34 | Shimoyama, 2012 | Unclear | N | Y | Y | Unclear | Y | Unclear | Y | N | N | Y |
| 35 | Urita, 2013 | N | N | Y | Y | Unclear | Y | Unclear | Y | N | N | Y |
| 36 | Ueda, 2014 | Unclear | N | Y | Y | Unclear | Y | Unclear | Y | Y | N | Y |
| 37 | Hirayama, 2014 | Unclear | N | Y | Y | Unclear | Y | Unclear | Y | Y | N | Y |
| 38 | Okuda, 2014 | Y | N | Y | Y | Unclear | Y | Y | Y | N | N | Y |
| 39 | Shimoyama, 2014 | Unclear | N | Y | Y | Unclear | Y | Y | Y | Y | Y | Y |
| 40 | Watanabe,2015 | N | N | Y | Y | Y | Y | Y | Y | N | N | Y |
| 41 | Kamada, 2015 | N | N | Y | Y | Unclear | Y | Y | Y | Y | Y | Y |
| 42 | Akamatsu, 2015 | Unclear | N | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 43 | Nakayama, 2016 | Unclear | N | Y | Y | Y | Y | Y | Y | N | Y | Y |
| 44 | Charvat, 2016 JPHC Cohort II | Y | Y | Y | Y | Y | Y | Y | Y | N | Y | Y |
| Yes, No, Unclear, Not applicable | ||||||||||||
| Information on JPHC next cohort (Study ID=45) is unpublished, details available upon request. | ||||||||||||