Factors Associated With Mortality in Low-Risk Pediatric Critical Care Patients in The Netherlands*

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Abstract

Objective:

To determine differences between survivors and nonsurvivors and factors associated with mortality in pediatric intensive care patients with low risk of mortality.

Design:

Retrospective cohort study.

Setting:

Patients were selected from a national database including all admissions to the PICUs in The Netherlands between 2006 and 2012.

Patients:

Patients less than 18 years old admitted to the PICU with a predicted mortality risk lower than 1% according to either the recalibrated Pediatric Risk of Mortality or the Pediatric Index of Mortality 2 were included.

Interventions:

None.

Measurements and Main Results:

In total, 16,874 low-risk admissions were included of which 86 patients (0.5%) died. Nonsurvivors had more unplanned admissions (74.4% vs 38.5%; p < 0.001), had more complex chronic conditions (76.7% vs 58.8%; p = 0.001), were more often mechanically ventilated (88.1% vs 34.9%; p < 0.001), and had a longer length of stay (median, 11 [interquartile range, 5–32] d vs median, 3 [interquartile range, 2–5] d; p < 0.001) when compared with survivors. Factors significantly associated with mortality were complex chronic conditions (odds ratio, 3.29; 95% CI, 1.97–5.50), unplanned admissions (odds ratio, 5.78; 95% CI, 3.40–9.81), and admissions in spring/summer (odds ratio, 1.67; 95% CI, 1.08–2.58).

Conclusions:

Nonsurvivors in the PICU with a low predicted mortality risk have recognizable risk factors including complex chronic condition and unplanned admissions.

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