Validation of the CaReQoL asthma: a patient reported outcome measure for monitoring the perceived effects of pulmonary rehabilitation in adult patients with severe refractory asthma

Table 2 Factor loadings and Cronbach’s alpha for subscales of the CareQoL Asthma (t38)

Factor	# items	Factor loadings (range)	Cronbach’s alpha
Physical functioning	8	0.72–0.90	0.95
Social functioning	4	0.85–0.88	0.93
Coping with asthma	5	0.65–0.78	0.85
Knowledge about asthma	3	0.71–0.91	0.83
Medication	3	0.72–0.78	0.82

Factor analyses were conducted for each subscale (Principal Component Analyses, with oblimin rotations; Eigenvalue > 1 and factor loadings > 0.40), n = 83

ISSN: 1465-993X