Fig. 2

Association between work environment factors and development of depressive symptoms when evidence was judged as moderate (grade 3), a. Decision latitude, The graph is based on data from the least adjusted model in studies expressing the strength of the association either as odds ratios or as correlations (the latter have been transformed into odds ratios). Ylipaavalniemi et al.: “Healthy at baseline” refers to a doctor diagnosis/non-diagnosis of depression. Please note that data from six more studies (Dagher et al. 2011, Magnusson Hansson et al. 2009, Paterniti et al. 2002, Plaisier et al. 2007, Rugulies et al. 2006 and Wieclaw et al. 2008) are included in the evidence-rated result; however data from these studies could not be illustrated in the graph due to the data format. Data have been re-calculated to show the association between high level of control and development of depressive symptoms (data in these studies are presented as association between low level of control and depressive symptoms). b. Job strain, The graph is based on data from the least adjusted model in studies expressing the strength of the association either as odds ratios or as correlations (the latter have been transformed into odds ratios). Please note that data from three more studies (Ibrahim et al. 2009, Wieclaw et al. 2008 and Mantyniemi et al. 2012) are included in the evidence-rated result; however data from these studies could not be illustrated in the graph due to the data format. c. Bullying, The graph is based on data from the least adjusted model in studies expressing the strength of the association either as odds ratios or as correlations (the latter have been transformed into odds ratios)