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Table 2 Summary of quality assessment for cohort studies

From: Relationship between alcohol-attributable disease and socioeconomic status, and the role of alcohol consumption in this relationship: a systematic review and meta-analysis

Study, Year Selection Comparability Outcome QA
1 2 3 4 5a 5b 6 7 8 Score
Braaten et al., 2005 [22] * * * * * * * 7
Brummett et al., 2011 [38] * * * * * 5
Chaix et al., 2010 [39] * * * * * * 6
Dyer et al., 1999 [40] * * * * * * * * * 8
Heck & Palmuck, 2007 [23] * * * * * * * * 8
Joshi et al., 2008 [30] * * * * * * * 7
Kivimaki et al., 2009 [32] * * * * * * * 7
Kuper et al., 2007 [33] * * * * * * * * 8
Laaksonen et al., 2007 [34] * * * * * * * 7
Larsen et al., 2011 [26] * * * * * * * * 7
McFadden et al., 2009 [35] * * * * * * * * 9
Melchior et al., 2005 [28] * * * * * * 6
Sundell et al., 2008 [36] * * * * * * * * 8
Veronesi et al., 2010 [37] * * * * * * * * 8
  1. *, criteria met. , criteria not met. Criteria: 1, Representative of average adult in the community. 2, Drawn from same community as exposed cohort. 3, Secure record or structured interview. 4, Demonstrated. 5a = Yes (age, sex, alcohol & SES). 5b = Yes (additional e.g. lifestyle factors). 6 = Independent blind assessment, record linkage. 7 = Follow-up > 6 months. 8 = Complete follow-up, or number lost <20%.