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Table 2 ‘Vote count’ of studies investigating work-related outcomes with statistical methods

From: Work-related outcomes in randomised placebo-controlled pain trials: a systematic review and meta-analysis

Significant improvement Non-significant changes
Bejarano et al. 2008 [15] Albert et al. 2013 [10]
Bennett et al. 2003 [16] Barkham et al. 2010 [13]
Bradley et al. 2010 [18] Baron et al. 2010 [14]
Chappell et al. 2011 [22] Chappell et al. 2009 [21]
He et al. 2005 [24] Egsmose et al. 1997 [23]
Kavanaugh et al. 2006 [26] Jarzem et al. 2005 [25]
Kavanaugh et al. 2009 [27] Lehmann et al. 1986 [29]
Kavanaugh et al. 2013 [28] Licciardone et al. 2003 [30]
Meireles et al. 2010 [33] Skljarevski et al. 2009 [34]
Markenson et al. 2005 [32] Straube et al. 2011 [4]
Skljarevski et al. 2010a [35] van der Heijde et al. 2006 [39]
Skljarevski et al. 2010b [36]  
Smolen et al. 2006 [37]  
Strand et al. 1999 [38]  
  1. The results of active treatment groups were pooled. Studies reported either significant improvements or non-significant changes; no study reported a significant worsening in work-related outcomes.