INVESTIGATION OF THE CORRELATION BETWEEN AND INTERCHANGEABILITY OF THE JAPANESE PEDIATRIC ASTHMA CONTROL PROGRAM (JPAC) AND THE CHILDHOOD ASTHMA CONTROL TEST (C-ACT)

Abstract

Objective: We compared the scores of JPAC and C-ACT, two asthma questionnaire surveys that are useful in the management of asthma therapy based on the pediatric asthma guideline, and investigated the correlation between and interchangeability of the two.
Method: We conducted both the C-ACT and JPAC surveys on 4 to 12 year-old asthma patients and their guardians who visited outpatients at 8 national hospital institutions, and the completed questionnaires were collected from 318 cases. We investigated the correlation between the JPAC and C-ACT scores using Pearson's product-moment correlation coefficient and compared the individual items of JPAC and C-ACT using the χ₂ test.
Results: The correlation coefficient of the JPAC and C-ACT scores of the 318 cases was 0.7525, with p<0.0001, indicating a significant correlation. The linear association of the items of exercise-induced asthma and night-sleep disorder between JPAC and C-ACT was p<0.0001, indicating a significant correlation.
Conclusion: Since the two surveys were correlated with high linear regression of y=1.2544x+6.7672 (r=0.7525, p<0.0001), it is clear that, if a C-ACT score of 26 or more is considered as complete control, 20 to 25 as good control, and below 20 as uncontrolled, it is interchangeable with the JPAC score.