Diverging pathways
Exploring the interplay between hospital readmission and postdischarge mortality in paediatric sepsis in low-income settings
Bibliographic Data
BACKGROUND: Mortality and readmission rates are high in low-income countries following hospital discharge; however, few studies have studied the relationship between these outcomes. Hospital readmission is a complex outcome as it reflects illness severity and health-seeking behaviour. This study aims to better understand the heterogeneous nature of hospital readmission, especially as it pertains to mortality. METHODS: Secondary analysis of a prospective, multisite, observational cohort study included children aged 0-60 months old admitted to hospital with suspected sepsis. We used Fine-Gray models and Cox proportional hazards regression to identify and contrast risk factors for readmission and postdischarge mortality. We also compared the risk ratio of the two outcomes across several domains, including diagnosis, postdischarge time period and study site. RESULTS: Of 6074 children discharged, 376 (6.2%) died, while 1106 (18.2%) were readmitted shortly after discharge. The median time to death and readmission was 28 (IQR: 9-74) and 79.5 (IQR: 30-130) days, respectively. A few patient characteristics, such as prior care seeking and hypoxaemia, were associated with both mortality and readmission. However, other characteristics, such as malnutrition (adjusted HR (aHR): 5.58 (95% CI: 4.20 to 7.43)), HIV (aHR: 1.89 (95% CI: 1.20 to 2.98)) and unplanned discharge (aHR: 3.31 (95% CI: 2.61 to 4.21)), were strongly predictive of postdischarge mortality but not readmission (aSHR: 0.67 (95% CI: 0.56 to 0.81), 0.64 (95% CI: 0.40 to 1.00) and 0.81 (95% CI: 0.67 to 0.98), respectively). The overall rate ratio of readmission to postdischarge mortality was 3.12 (95% CI: 2.77 to 3.50) and increased over time, mostly due to decreasing mortality. CONCLUSIONS: Readmission as an outcome measure reflects perceived illness severity, health system capacity and complex healthcare-seeking behaviour. Unlike mortality, readmission is not a reliable surrogate for recurrent illness and should not be used as a primary measure of impact for programmes aiming to improve postdischarge outcomes
Hospital admission · Hospital readmission · MEDLINE · Sepsis · Severity of illness · Global Maternal and Child Health · Heart Failure Treatment and Management · Sepsis Diagnosis and Treatment
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