Table 2.
Random-effects logistic regression model for death in PICU
| OR | 95% CIs | p Value | ||
| LLC | ||||
| No | Ref | |||
| Yes | 1.75 | 1.64 | 1.87 | <0.001 |
| Age category | ||||
| <1 year | Ref | |||
| 1–4 years | 0.81 | 0.75 | 0.87 | <0.001 |
| 5–10 years | 0.94 | 0.86 | 1.03 | 0.20 |
| 11–15 years | 1.06 | 0.96 | 1.16 | 0.26 |
| 16+ | 1.37 | 1.13 | 1.66 | <0.001 |
| Sex | ||||
| Male | Ref | |||
| Female | 1.09 | 1.03 | 1.15 | 0.002 |
| Ethnicity | ||||
| Non-South Asian | Ref | |||
| South Asian | 1.30 | 1.20 | 1.41 | <0.001 |
| Deprivation category | ||||
| Category 1 (least deprived) | Ref | |||
| Category 2 | 1.02 | 0.91 | 1.13 | 0.77 |
| Category 3 | 1.03 | 0.92 | 1.14 | 0.64 |
| Category 4 | 1.07 | 0.97 | 1.18 | 0.18 |
| Category 5 (most deprived) | 1.07 | 0.97 | 1.17 | 0.17 |
| Diagnostic group (reason for PICU admission) | ||||
| Neurological | 1.39 | 1.26 | 1.54 | <0.001 |
| Cardiac | 1.23 | 1.13 | 1.35 | 0.001 |
| Respiratory | Ref | |||
| Oncology | 2.06 | 1.75 | 2.42 | <0.001 |
| Infection | 1.94 | 1.74 | 2.17 | <0.001 |
| Musculoskeletal | 0.74 | 0.55 | 0.99 | 0.04 |
| Gastrointestinal | 1.39 | 1.22 | 1.58 | <0.001 |
| Other | 1.26 | 1.10 | 1.45 | <0.001 |
| Blood and lymph | 2.32 | 1.86 | 2.91 | <0.001 |
| Trauma | 1.69 | 1.43 | 2.01 | <0.001 |
| Endocrine/metabolic | 2.18 | 1.90 | 2.50 | <0.001 |
| Multisystem | 0.67 | 0.33 | 1.38 | 0.28 |
| Body wall and cavities | 0.97 | 0.76 | 1.22 | 0.78 |
| Risk of mortality (PIM2) | ||||
| <1% | Ref | |||
| 1% to <5% | 4.54 | 3.91 | 5.28 | <0.001 |
| 5% to <15% | 12.46 | 10.65 | 14.57 | <0.001 |
| 15% to <30% | 32.56 | 27.44 | 38.64 | <0.001 |
| >30% | 201.63 | 169.60 | 239.70 | <0.001 |
| LOS PICU (days) | ||||
| <1 | 1.51 | 1.39 | 1.63 | <0.001 |
| 1 to <3 | Ref | |||
| 3 to <7 | 0.86 | 0.79 | 0.94 | 0.001 |
| 7 to <14 | 1.09 | 0.99 | 1.20 | 0.07 |
| 14 to <28 | 2.02 | 1.81 | 2.24 | <0.001 |
| >28 | 3.98 | 3.53 | 4.47 | <0.001 |
| Type of PICU admission | ||||
| Planned, after surgery | Ref | |||
| Unplanned, after surgery | 1.20 | 1.01 | 1.42 | 0.04 |
| Planned other | 1.32 | 1.14 | 1.52 | <0.001 |
| Unplanned | 1.53 | 1.38 | 1.70 | <0.001 |
| Not known | 1.35 | 0.63 | 2.88 | 0.44 |
| Year of admission | 0.97 | 0.96 | 0.98 | <0.001 |
n=153 513, group=35, Wald χ2=10 213, BIC=40 229, sigma_u=0.30, rho=0.03.
BIC, Bayesian information criterion; LLC, life-limiting condition; LOS, length of stay; PICU, paediatric intensive care unit; PIM2, Paediatric Index of Mortality 2.