Objective
The Paediatric Asthma Caregiver’s Quality of Life
Questionnaire (PACQLQ) is intended to measure the impact of
children’s asthma on their parents/caregiver’s QoL. However,
there are no formal validation studies of the Spanish version of PACQLQ.
Methods
In a prospective cohort validation study, asthmatic children aged
between 7 and 17 years and their parents, attended both a baseline and a
follow-up visit 2–6 weeks later. In these two visits, we gathered
the necessary data for assessing the criterion validity, construct validity,
test–retest reliability, sensitivity to change, internal consistency
and usability of the PACQLQ.
Results
At baseline, PACQLQ scores were significantly different between
patients with controlled, partly controlled and uncontrolled asthma (median
[IQR] 78.0 [61.0–85.0], 71.0
[37.0–76.0] and 48.0
[40.7–55.0], respectively, p
<0.001), and also between patients for whom this visit resulted in a
step-up versus no change or a step-down in therapy (50.0
[40.0–60.0] versus 78.0
[61.0–85.0]; p <0.001).
PACQLQ scores at baseline were significantly lower than those obtained in
the follow-up visit in patients with change for the better in the global
rating of change questionnaire (median [IQR] 50.0
[42.5–56.0] versus 80.0
[78.5–85.0]; p < 0.001).
The intraclass correlation coefficient of the measurements was 0.839
(95% CI: 0.735–0.902). The Cronbach α was 0.914 for
the questionnaire as a whole.
Conclusions
The Spanish version of the PACQLQ has adequate construct validity,
adequate sensitivity to change, good internal consistency, excellent
test–retest reliability and good usability when employed in children
aged between 7 and 17 years with physician-diagnosed asthma.