Psychometric evaluation of an electronic Asthma Symptom Diary for young children

Journal of Patient-Reported Outcomes

Table 8 Test-retest reliability: ePASD composite scores

ePASD score	EOS Day −2 to EOS Day −1 ICC (95% CI), n PGIC = “The Same” (2)	EOS Day −2 to EOS Day −1 ICC (95% CI), n
Daytime Symptom score	0.60 (0.29, 0.80), 44	0.63 (0.39, 0.80), 61
Daytime score	0.60 (0.29, 0.80), 44	0.64 (0.40, 0.80), 61
Nighttime Symptom score	0.66 (0.36, 0.83), 42	0.73 (0.53, 0.85), 61
Nighttime score	0.65 (0.35, 0.83), 42	0.70 (0.49, 0.84), 61
Overall Symptom score	0.71 (0.44, 0.86), 44	0.73 (0.53, 0.85), 61

CI = confidence interval; EOS = end of study; ePASD = electronic Pediatric Asthma Symptom Diary; ICC = intraclass correlation coefficient; PGIC = Patient Global Impression of Change