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Table 5 Crude and age- and sex standardized 30-day mortality rates for variation in discharge and for the six different triage colors among patients by time of admission to the emergency department

From: Linking the severity of illness and the weekend effect: a cohort study examining emergency department visits

The patient’s last visit to the ED (21,736) Weekday
(From 7.00 am on Monday to 2.59 p.m. on Friday)
Weekend
(From 3.00 p.m. on Friday to 6.59 a.m. on Monday)
Daytime (7.00 a.m. – 2.59 p.m.) Evening (3.00 p.m. – 10.59 p.m.) Nighttime (11.00 p.m. – 6.59 a.m.) Daytime (7.00 a.m. – 2.59 p.m.) Evening (3.00 p.m. – 10.59 p.m.) Nighttime (11.00 p.m. – 6.59 a.m.)
Reference Crude (%) Adj. % (95% CI) Crude (%) Adj. % (95% CI) Crude (%) Adj. % (95% CI) Crude (%) Adj. % (95% CI) Crude (%) Adj. % (95% CI)
Overall 2.8 (2.4–3.1) 3.0 3.4 (2.9–4.0) 3.6 3.6 (2.5–4.7) 3.4 3.2 (2.5–3.9) 3.3 3.7 (3.1–4.4) 3.5 4.5 (3.3–5.6)
Discharge
 Discharged from the ED 0.9 (0.6–1.1) 1.0 1.2 (0.8–1.6) 1.5 1.7 (0.7–2.8) 1.2 1.1 (0.6–1.6) 0.9 1.0 (0.6–1.5) 1.5 2.1 (1.0–3.1)
 Discharged from another department 7.1 (6.2–8.1) 7.9 7.9 (6.5–9.4) 7.1 6.8 (4.3–9.2) 8.5 7.8 (6.0–9.7) 9.0 9.3 (7.6–11.0) 9.0 9.2 (6.4–12.0)
 Triage missing 1.8 (1.4–2.3) 2.5 2.7 (1.8–3.7) 5.1 5.3 (2.5–8.1) 3.5 2.2 (1.3–3.2) 3.1 3.1 (2.0–4.2) 4.6 5.8 (2.9–8.8)
 Triage 5 (blue) 0.2 (0.0–0.4) 0.3 0.4 (0.0–0.7) 0 0 (0.0–0.0) 0.3 0.3 (0.0–0.7) 0 0 (0.0–0.0) 0.3 0.6 (0.0–1.7)
 Triage 4 (green) 2.8 (2.2–3.4) 2.8 3.1 (2.1–4.1) 2.4 2.8 (1.0–4.6) 2.4 2.4 (1.2–3.6) 2.9 3.3 (2.1–4.4) 2.6 3.8 (1.8–5.7)
 Triage 3 (yellow) 6.7 (5.1–8.4) 6.2 6.4 (4.3–8.5) 5.4 5.8 (2.1–9.6) 8.8 7.2 (4.2–10.2) 5.7 6.4 (4.0–8.8) 3.9 4.9 (1.4–8.3)
 Triage 2 (orange) 15.0 (10.8–19.2) 15.4 18.6 (11.6–25.7) 8.9 8.5 (1.4–15.7) 20.0 21.3 (10.6–32.1) 18.1 19.7 (12.9–26.4) 11.3 19.3 (8.2–30.3)
 Triage 1 (red) 20.5 (13.7–27.4) 18.5 22.0 (0-.) 16.0 20.8 (4.3–37.4) 12.5 9.4 (1.4–17.4) 33.3 39.3 (26.3–52.2) 29.2 37.6 (0-.)