TAILIEUCHUNG - báo cáo khoa học: "Still too little qualitative research to shed light on results from reviews of effectiveness trials: A case study of a Cochrane review on the use of lay health workers"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Still too little qualitative research to shed light on results from reviews of effectiveness trials: A case study of a Cochrane review on the use of lay health workers | Glenton et al. Implementation Science 2011 6 53 http content 6 1 53 Implementation Science IMPLEMENTATION SCIENCE SHORT REPORT Open Access Still too little qualitative research to shed light on results from reviews of effectiveness trials A case study of a Cochrane review on the use of lay health workers Claire Glenton1 Simon Lewin2 and Inger B Scheel1 Abstract Background Qualitative research is used increasingly alongside trials of complex interventions to explore processes contextual factors or intervention characteristics that may have influenced trial outcomes. Qualitative research conducted alongside trials can also be used to shed light on the results of systematic reviews of effectiveness by looking for factors that can help explain heterogeneous results across trials. In a Cochrane review on the effects of using lay health workers on maternal and child health and infectious disease control we identified 82 trials. These trials showed promising benefits but results were heterogeneous. Objective To use qualitative studies conducted alongside these trials to explore factors and processes that might have influenced intervention outcomes. Methods We attempted to identify qualitative research carried out alongside the trials by contacting trial authors checking papers for references to qualitative research searching Pubmed for related studies and carrying out citation searches. For those qualitative studies that we included we extracted information regarding study objective data collection and analysis methods and key themes and categories. Results For 52 63 of the trials we found no qualitative research that had been conducted alongside the trials. For 16 20 trials some form of qualitative data collection had been done but was unavailable or had been done before the trial. For 14 17 trials qualitative research had been done during or shortly after the trial although descriptions of qualitative methods and results were often sparse.

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