Predicting Future Acute Care Visit Risk in Kids With Asthma (PARKA): A Nested Cohort Study

Area of Science:

• Pediatric Emergency Medicine
• Respiratory Health
• Clinical Risk Prediction

Background:

• Asthma exacerbations are a significant cause of pediatric emergency department (ED) visits and hospitalizations.
• Predicting future acute care needs for children with asthma is crucial for effective resource allocation and preventative care.

Purpose of the Study:

• To develop and internally validate a clinical risk score to predict asthma acute care visits within one year post-discharge.
• To identify key clinical factors associated with future asthma-related emergency care utilization in children.

Main Methods:

• A nested cohort of 257 children (1-17 years) with moderate/severe asthma exacerbations was assembled from the DOORWAY study in Ontario, Canada.
• Provincial health administrative data were linked to identify subsequent asthma acute care visits.
• Multivariable regression analysis was used to derive and validate the clinical risk score.

Main Results:

• The PARKA score incorporates four factors: food allergy, family history of asthma, prior acute asthma visits, and prior emergency room visits for respiratory diagnoses.
• The score demonstrated good performance with an area under the curve (AUC) of 0.72 (95% CI: 0.64-0.78).
• Food allergy (OR 4.2) and prior respiratory ER visits (OR 3.0) were significant predictors of future acute care visits.

Conclusions:

• The PARKA score effectively predicts the risk of future asthma acute care visits in children following a moderate/severe asthma exacerbation.
• This validated tool has the potential to assist emergency department clinicians in identifying high-risk children for targeted preventative interventions.