Validation of the Asthma Severity Scoring System (ASSESS) in the ALLIANCE Cohort

J Allergy Clin Immunol. 2023 Jun;151(6):1525-1535.e4. doi: 10.1016/j.jaci.2023.01.027. Epub 2023 Feb 15.

Abstract

Background: The Asthma Severity Scoring System (ASSESS) quantifies asthma severity in adolescents and adults. Scale performance in children younger than 12 years is unknown.

Objective: To validate the ASSESS score in the All Age Asthma Cohort and explore its use in children younger than 12 years.

Methods: Scale properties, responsiveness, and known-group validity were assessed in 247 children (median age, 11 years; interquartile range, 8-13 years) and 206 adults (median age, 52 years; interquartile range, 43-63 years).

Results: Overall, measures of internal test consistency and test-retest reliability were similar to the original data of the Severe Asthma Research Program. Cronbach α was 0.59 in children aged 12 to 18 years and 0.73 in adults, reflecting the inclusion of multiple and not-always congruent dimensions to the ASSESS score, especially in children. Analysis of known-group validity confirmed the discriminatory power, because the ASSESS score was significantly worse in patients with poor asthma control, exacerbations, and increased salbutamol use. In children aged 6 to 11 years, test-retest reliability was inferior compared with that in adults and adolescents (Cronbach α, 0.27) mostly because of a less lung function impairment in children with asthma of this age group. Known-group validity, however, confirmed good discriminative power regarding severity-associated variables similar to adolescents and adults.

Conclusions: Test-retest reliability and validity of the ASSESS score was confirmed in the All Age Asthma Cohort. In children aged 6 to 11 years, internal consistency was inferior compared with that in older patients with asthma; however, test validity was good and thus encourages age-spanning usage of the ASSESS score in all patients 6 years or older.

Keywords: ALLIANCE; adult asthma; asthma; asthma control; asthma severity; children; pediatric asthma; validation study.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Asthma* / diagnosis
  • Child
  • Humans
  • Middle Aged
  • Reproducibility of Results
  • Surveys and Questionnaires