European journal of cancer : official journal for European Organization for Research and Treatment of Cancer (EORTC) [and] European Association for Cancer Research (EACR)
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Review Meta Analysis
The magnitude and predictors of abandonment of therapy in paediatric acute leukaemia in middle-income countries: a systematic review and meta-analysis.
Abandonment of therapy is a significant cause of paediatric cancer treatment failure in low- to middle-income countries (LMIC), but its impact has been underestimated. We performed a meta-analysis to determine the magnitude of abandonment in paediatric leukaemia in LMIC and sought to identify patient-, centre- and country-specific predictors of abandonment. ⋯ In LMICs, ARs are highest in lower-MICs. However, their broad range suggests that low ARs are possible in resource-constrained settings. Analysis of outliers may suggest interventions for use at other centres. Methodologically appropriate reporting of ARs should be adopted. Future research should evaluate interventions targeting abandonment.
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Meta Analysis
Diabetes mellitus as an independent risk factor for lung cancer: a meta-analysis of observational studies.
Epidemiologic studies have demonstrated inconsistent associations between diabetes mellitus and the risk of lung cancer. To determine whether diabetes mellitus is associated with an increased risk of lung cancer, we performed a meta-analysis of observational studies. ⋯ Preexisting diabetes mellitus may increase the risk of lung cancer, especially among female diabetic patients. Further large-scale prospective studies are needed to test specifically the effect of diabetes mellitus on lung cancer risk.