La efectividad de la enfermedad y manejo de casos para personas con diabetes: una revisión sistemática

CRD COMMENTARY:

The aims of the review were stated and the inclusion criteria were defined in terms of the interventions, study design and outcomes. Only brief details of the methods used to conduct the review were specified in the text, although sources of more comprehensive information were referenced. Several relevant sources were searched but it was not stated whether any language restrictions were applied. Validity was assessed using defined criteria and only studies that met the minimum quality criteria were eligible for inclusion. Relevant data were extracted but only information for case management studies were tabulated in the review. The data were combined by estimating the median values and interquartile ranges for some outcomes. Statistical heterogeneity among the studies was not statistically assessed, and the influence of study validity on the results was not examined.
Information on the design of the individual studies was lacking. There were no details of what defined a 'good' quality study. Hence, the authors' conclusions should be interpreted with caution.