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[Trend of quality of hospital care in German hospitals between 2008 and 2011: a study from national quality assurance data].

BACKGROUND AND OBJECTIVES
According to § 137 social code book (SGB) V, data from the national quality assurance are published annually. Objective of this study was to analyse the long-term development of the quality of hospital care.


METHODS
On the basis of national data and results of another study covering the years 2004-2008, quality indicators with comparable results of at least 3 subsequent years were included. 292 quality indicators of 26 service groups and 14 medical fields were included. We identified a trend with linear regression and continuous change.


RESULTS
95 % of the performance measures showed either an improvement of quality (105 measures, 36 %) or a stable condition (173 measures, 59 %). Five percent of the quality indicators (14 measures) showed a deterioration. Eleven of the 14 measures assessed quality in coronary angiography and percutaneous coronary intervention.


CONCLUSION
Evaluated with performance measures from the national quality assurance, the quality of hospital care improved from 2008-2011, as already from 2004-2008. The deterioration of quality in 5 % of measures shows the need for action in particular situations of care.