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Table 2 Health care utilization. Data are unweighted or weighted by age, sex and troponin

From: Examining the translational success of an initiative to accelerate the assessment of chest pain for patients in an Australian emergency department: a pre-post study

 Unweighted DataWeighted Data
Pre-Implementation* (n = 5764)Post-Implementation* (n = 6866)Difference (95% CI)Pre-Implementation†Post-Implementation†Difference (95% CI)
Proportion of patients accelerated173 (3.0%)2878 (41.9%)39.0% (37.5 to 40.3%)3.0% (2.6–3.5%)34.4% (33.1 to 35.8%)31.4% (30.0 to 32.8%)
ED assessment period, hours
 Median (IQR)9.0 (5.9 to 14.8)7.4 (4.8 to 12.5)−1.6 (−1.8 to − 1.4)9.0 (5.9–14.8)7.4 (4.8 to 12.1)−1.6 (− 1.8 to − 1.4)
 Mean (95% CI)11.1 (10.9 to 11.3)9.7 (9.5–9.9)−1.4 (− 1.7 to − 1.1)11.1 (10.9–11.3)9.5 (9.4 to 9.7)−1.5 (− 1.8 to − 1.2)
ED assessment period excluding high risk patients, hours
 Median (IQR)10 (7.0 to 17.3)7.5 (4.9 to 13.5)−2.5 (−2.8 to − 2.2)10 (7.0 to 17.3)7.6 (4.9 to 13.5)−2.4 (− 2.7 to − 2.1)
 Mean (95% CI)12.3 (12.1 to 12.6)10.1 (9.9 to 10.3−2.3 (− 2.6 to − 2.0)12.3 (12.1 to 12.6)10.1 (9.9 to 10.3)−2.3 (− 2.6 to − 2.0)
Hospital length of stay, hours
 Median (IQR)36.7 (16.8–97.3)24.7 (8.1 to 78.5)−12.1 (− 14.8 to −9.4)36.7 (16.8–97.3)34.4 (10.5 to 99.6)−2.3 (−6.0 to 1.3)
 Mean (95% CI)82.6 (78.7 to 86.5)67.5 (64.5 to 70.5)−15.1 (− 19.8 to − 10.4)82.4 (78.6 to 86.2)80.9 (77.1 to 84.7)−1.5 (− 6.7 to 3.7)
Hospital length of stay excluding high risk patients, hours
 Median (IQR)24.0 (13.7–58.90)19.5 (6.9 to 51.7)−4.5 (−5.4 to −3.6)24.0 (13.6 to 59.5)20.3 (7.3 to 54.2)−3.7 (−4.7 to −2.8)
 Mean (95% CI)50.2 (47.7 to 52.9)47.9 (45.5 to 50.3)−2.4 (−5.8 to 1.1)50.4 (47.7 to 52.8)50.2 (47.7 to 52.7)−0.2 (−3.7 to 3.3)
  1. CI confidence interval, IQR Interquartile range, ED Emergency Department. * Data are n (%), mean (95% CI), and median (IQR) † Data are n (95% CI), mean (95% CI) or median (IQR)
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