Table 1 Differences in PICU admissions, bed-days and diagnostic categories between 2020 and 2016–2019
|  | 2016–2019 aggregate | 2020 | Comparison (2020 vs. 2016–2019) | |
|---|---|---|---|---|
Mean (range) | n | Absolute difference | Relative difference (%) | |
Number of PICU admissions | ||||
January–March | 5239 (5134–5319) | 4846 |  − 393 | 7.5 |
April–June | 5008 (4982–5059) | 3393 |  − 1615 | 32.3 |
July–September | 4869 (4788–4921) | 4270 |  − 599 | 12.3 |
October–December | 5527 (5326–5733) | 4432 |  − 1095 | 19.8 |
Annual | 20,643 (20,340–20,868) | 16,941 |  − 3702 | 17.9 |
PICU bed days | ||||
January–March | 37,541 (36,963–38,922) | 31,122 |  − 6419 | 16.3 |
April–June | 34,675 (32,823–35,965) | 24,709 |  − 9966 | 28.7 |
July–September | 33,593 (32,438–34,480) | 28,851 |  − 4742 | 14.8 |
October–December | 39,359 (32,248–40,980) | 24,534 |  − 14,825 | 37.7 |
Annual | 145,168 (140,836–147,985) | 109,216 |  − 35,952 | 24.8 |
| Â | Median (IQR) | Median (IQR) | Â | Difference in medians |
|---|---|---|---|---|
PIM3 predicted probability of death | 1.2 (0.5–3.4) | 1.2 (0.5–3.4) |  | 0.0 |
| Â | Mean n (%) | n (%) | Difference in proportions (95% CI) | Absolute difference (Relative difference, %) |
|---|---|---|---|---|
Admission type | ||||
Planned | 8275 (40.1) | 7065 (41.7) | 1.6 (0.8 to 2.4) |  − 1210 (− 14.6) |
Unplanned | 12,364 (59.9) | 9862 (58.2) |  − 1.7 (− 2.4 to 0.9) |  − 2502 (− 20.2) |
Primary diagnosis/reason for PICU admission | ||||
Respiratory | 6119 (29.6) | 3601 (21.3) |  − 8.3 (− 9.0 to − 7.6) |  − 2518 (− 41.1) |
Unplanned respiratory* | 5117 (41.4) | 2922 (29.6) |  − 11.8 (− 12.8 to − 10.8) |  − 2195 (− 42.9) |
Trauma | 419 (2.0) | 394 (2.3) | 0.3 ( 0.1 to 0.5) |  − 25 (− 6.0) |
Diabetic ketoacidosis | 142 (0.7) | 261 (1.5) | 0.8 ( 0.6 to 1.0) |  + 119 (+ 83.8) |
Asthma | 399 (1.9) | 239 (0.7) |  − 1.2 (− 1.4 to − 1.1) |  − 160 (− 40.1) |
Bronchiolitis | 1820 (8.8) | 726 (4.3) |  − 4.5 (− 4.9 to − 4.2) |  − 1094 (− 60.1) |
Interventions | ||||
Invasive ventilation†| 12,757 (61.8) | 9999 (59.0) |  − 2.8 (− 3.6 to − 2.0) |  − 2758 (− 21.6) |
Inhaled nitric oxide | 808 (3.9) | 641 (3.8) |  − 0.1 (− 0.4 to 0.2) |  − 167 (− 20.6) |
CVVH | 369 (1.8) | 335 (2.0) | 0.2 (0.0 to 0.4) | –34 (− 9.2) |
ECLS | 249 (1.2) | 205 (1.2) | 0.0 (− 0.2 to 0.2) |  − 44 (–17.7) |
Outcomes | ||||
In-PICU mortality | 711 (3.4) | 605 (3.6) |  − 0.2 (− 0.5 to 0.1) | –106 (− 14.9) |
In-PICU mortality for respiratory admissions | 134 (2.2%) | 67 (1.9%) | 0.3 (− 0.2 to 0.8) |  − 67 (− 50.0) |
Median length of stay (days) | 2.3 (1.0–5.5) | 2.4 (1.0–5.7) |  | 0.1 |