temporal series analysis on avoidable mortality for the assessment of an intervention program in a hospital

background: avoidable mortality (am) is one of the most important health indicators (hi) and represents the quality of care in a hospital.objective: this study measured the efficacy of a training program for a hospital healthcare staff to reduce am.methods: this epidemiological study on community intervention analyzed time-series data on hi by semesters from 2008 to 2015. the pre-intervention phase was examined from january 2008 to december 2014; the intervention phase was investigated in the first semester of 2015; and the post-intervention phase was examined in the second semester of 2015.results: resindicate a series with a rising tendency until the 14th semester and a pronounced descent in the 16th semester. the relative variation rate (rvr) was -20% to +20% with some exceptions. hi was 0.53% in the 16th semester rather than the expected 0.70% observed in the pre-intervention phase; therefore, 0.17% additional deaths were avoided because of the training seminar.conclusion: the positive results suggest that this strategy is an important element in decreasing avoidable deaths in hospitals.