Table 1 Characteristics of 3276 Emergency Department (ED) shifts

 Patient census

385

193–705, 293–459

 n of pending admissions at shift start

47

0–110, 35–59

Proportion left without being seen

0.109

0.006–0.304, 0.078–0.141

Median length of stay (minutes)

236

84–1504, 204–272

 Proportion of females

0.310

0.164–0.444, 0.270–0.342

 Proportion of Qatari nationals

0.2

0.076–0.374, 0.158–0.238

 Proportion of pediatric (age < 18) cases

0.087

0.010–0.211, 0.056–0.129

 Proportion of geriatric (age > 64) cases

0.040

0.004–0.083, 0.032–0.048

 Proportion of lowest-acuity triage scores^a

46.4

12.3–79.0, 41.4–56.2

 All grades combined

25

10–35, 23–27

 Consultants

6

0–15, 4–7

 Specialists

11

0–22, 9–14

 Fellows

6

0–19, 4–8

 Residents

1

0–16, 0–3