Table 1.
Characteristics of ED crowding measures (EDLOS and EDV) by ED volume, ED area and time-band, in the cohort of discharged patients: mean, standard deviation and percentiles
| Measure of crowding | Mean | Standard deviation | 25°‰ | 50°‰ | 75°‰ | 95°‰ | ||
|---|---|---|---|---|---|---|---|---|
| EDLOS (hour) | Total | 3.1 | 3.3 | 1.1 | 2.1 | 3.9 | 9.2 | |
| ED volume (visits in 1 year) | < 25,000 | 2.1 | 2.2 | 0.8 | 1.5 | 2.7 | 5.6 | |
| > = 25,000 | 3.2 | 3.4 | 1.1 | 2.2 | 4.0 | 9.6 | ||
| ED area | Rome | 3.3 | 3.6 | 1.1 | 2.2 | 4.1 | 10.1 | |
| Rome province | 3.1 | 3.1 | 1.2 | 2.3 | 3.9 | 8.6 | ||
| Others provinces | 2.7 | 2.9 | 1.0 | 1.9 | 3.4 | 7.9 | ||
| Time-band of access | 8:00–15:00 | 3.1 | 3.1 | 1.2 | 2.2 | 3.9 | 8.4 | |
| 16:00–23:00 | 3.0 | 3.6 | 1.0 | 1.9 | 3.6 | 11.4 | ||
| 00:00–7:00 | 3.2 | 3.3 | 0.9 | 2.2 | 4.4 | 10.1 | ||
| EDV (patients) | Total | 21.9 | 18.6 | 8 | 16 | 32 | 59 | |
| ED volume (visits in 1 year) | < 25,000 | 6.4 | 4.2 | 3 | 6 | 9 | 14 | |
| > = 25,000 | 24.0 | 18.7 | 10 | 19 | 34 | 61 | ||
| ED area | Rome | 29.5 | 19.9 | 14 | 26 | 42 | 67 | |
| Rome province | 10.4 | 7.4 | 5 | 9 | 15 | 24 | ||
| Others provinces | 15.6 | 14.4 | 5 | 11 | 21 | 47 | ||
| Time-band of access | 8:00–15:00 | 24.1 | 19.3 | 10 | 18 | 35 | 63 | |
| 16:00–23:00 | 21.2 | 17.6 | 8 | 16 | 31 | 57 | ||
| 00:00–7:00 | 11.7 | 12.9 | 2 | 7 | 18 | 39 | ||