Analysis of the asthma scores recommended in guidelines for children presenting to the emergency department: a Pediatric Emergency Research Networks study

Rationale: While there are numerous published paediatric asthma scores, it is unknown how commonly scores are recommended in asthma guidelines across different geographical regions globally, and what their validation status is. Objectives: (1) To describe which clinical guidelines recommend asthma scores across different geographical regions. (2) To describe the initial and subsequent validation of the commonly recommended asthma scores. Methods: Observational study of asthma scores recommended in guidelines for the management of acute paediatric asthma from institutions across the Pediatric Emergency Medicine Network; global paediatric emergency medicine research network comprising all eight local and regional paediatric emergency medicine research networks. Main results: 158 guidelines were identified. Overall, 83/158 (53%) guidelines recommend a bedside clinical score for assessment of asthma severity. While a single country-specific clinical score was recommended in all guidelines from Spain and Canada, 27/28 (96%) of the USA guidelines recommend a wide variety of scores, and scores are rarely recommended in guidelines from other research networks (PERUKI, Paediatric Emergency Research in the UK and Ireland and PREDICT, Paediatric Research in Emergency Departments International Collaborative in Australia and New Zealand) and other countries (Costa Rica, South Africa, Nigeria, Singapore, India).The Pediatric Respiratory Assessment Measure (PRAM) and the pulmonary score (PS) were the most frequently used scoring instruments. While the PRAM has undergone the most extensive validation, including construct validity, validation studies for the PS are limited. Inter-rater reliability, as well as the criterion, responsiveness and discriminative validity aspects represent the most common limitations in many of the scores. Conclusions: There are marked geographical differences in both the recommendation for and the type of clinical asthma score in clinical practice guidelines. While many asthma scores are recommended, most have insufficient validation.

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