Knowing the score: using predictive scoring systems in clinical practice

Area of Science:

• Pediatric critical care medicine
• Clinical decision support systems
• Biostatistics in healthcare

Background:

• Outcome scores are increasingly used to aid clinical decisions, particularly in cases of potentially futile care.
• The Pediatric Risk of Mortality (PRM) score is a tool for assessing mortality risk in pediatric intensive care units (PICUs).

Purpose of the Study:

• To evaluate the utility of the Pediatric Risk of Mortality score for individual patient care decisions in clinical practice.
• To identify features of the PRM score that necessitate careful consideration when applied to individual patients.

Main Methods:

• Analysis of the Pediatric Risk of Mortality score's features relevant to clinical decision-making.
• Examination of data collection and presentation methods for potential variability and bias.
• Assessment of the score's capacity to integrate patient and family values.

Main Results:

• Variability and bias in data collection and presentation were identified as significant limitations.
• The PRM score does not incorporate patient and family values into its risk assessment.
• The score provides adjunctive information but requires cautious interpretation.

Conclusions:

• The Pediatric Risk of Mortality score can be a useful adjunct but must be used with caution in individual patient care decisions.
• Clinicians must be aware of the score's limitations, including data issues and the exclusion of patient/family values.
• Application of PRM scores requires consideration of validation context, individual patient variability, and the paramount importance of patient and caregiver values.