Eligible studies examining the impact of socioeconomic status upon outcome in children with cancer in low- and middle-income countries.

ALL – acute lymphoblastic leukemia; AML – acute myeloid leukemia; DFS – disease free survival; EFS – event free survival; HR – hazard ratio; N – number; NS – non-significant; OS – overall survival; SES – socioeconomic status; TRM – treatment related mortality.Bolded variables indicate statistically significant associations. Magnitudes of non-significant associations and confidence intervals of significant associations can be found in Table S1, along with definitions of each variable.aEducation measures also include occupation-based measures.bAggregate score based on income, education and occupation.cUrban residents also had medical insurance while rural residents did not.