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Table 2 Quality assessment of included studies

From: The relationship between physical activity and lymphoma: a systematic review and meta analysis

Study Selection Comparability Outcome or Exposure Total Risk of Bias
Cohort Studies
 Barberio et al., 2018 [17] *** ** ** 7 Low
 Cerhan et al., 2002 [22] *** * ** 6 Moderate
 Kabat et al., 2012 [23] *** ** *** 8 Low
 Lim et al., 2007 [24] *** ** *** 8 Low
 Lu et al., 2009 [25] ** * ** 5 Moderate
 Pukkala et al., 2000 [26] *   ** 3 High
 Teras et al., 2012 [27] *** ** *** 8 Low
 van Veldhoven et al., 2011 [28] ** * * 4 Moderate
 Walter et al., 2013 [18] *** ** *** 8 Low
Case-Control Studies
 Boyle et al., 2015 [15] *** ** * 6 Moderate
 Brownson et al., 1991 [29] * * * 3 High
 Cerhan et al., 2005 [30] ** ** * 5 Moderate
 Etter et al., 2018 [16] * ** ** 5 Moderate
 Keegan et al., 2006 [31] **** ** * 7 Low
 Kelly et al., 2012 [32]   ** ** 4 Moderate
 Pan et al., 2005 [33] **** ** ** 8 Low
 Parent et al., 2011 [34] ** ** * 5 Moderate
 Zahm et al., 1999 [35] *** * * 5 Moderate