Table 2

Trends* in selected markers of acuity or complexity for ED visits

200620092012Time trend per year,
% (95% CI)
P value
Hospital admission rate40.1%38.7%35.9%−0.68 (−0.71 to −0.65)<0.001
ICU admission rate11.7%12.6%12.3%+0.11 (0.09 to 0.12)<0.001