BMJ · 2004 · 104 citations · 12 references
Independent data validation is essential for accurate survival analysis. One year survival gives a more realistic view of outcome than traditional perioperative mortality. Currently no detectable difference exists in survival between any of the 13 UK tertiary congenital heart disease centres, but confidence intervals for small centres are wide, limiting our power to detect underperformance from analysis of a single year's data. Appropriately resourced, focused national audit is capable of accurate data collection on which nationwide, long term quality control can be based.
12
Late Results of Pediatric Cardiac Surgery in Finland
Heta Nieminen, Eero Jokinen, Heikki Sairanen · Circulation · 2001 · 142 citations · Full text