a decreasing trendP =0.02
heart failure hospitalization mortality outcome quality of care Subject Categories Heart Failure Epidemiology Mortality/Survival Quality and Outcomes Wayne State University Library System Open Access Fund Award When we evaluated rates of decline within the 3 intervals of the ACC/AHA HF guidelines, there was a decreasing trend within each interval, but the magnitude of the decline was higher in the later intervals (ie, average annual rate of decline was 1.1% [95% CI, 0.18%–1.9%; P =0.02] for the first interval, 3.4% [95% CI, 2.4%–4.4%; P <0.001] for the second interval, and 4.3% [95% CI, 3.9%–5.9%; P <0.001] for the third interval) (Figure 1 A).