Perceived quality of life in chronic obstructive pulmonary disease patients: a cross-sectional study in primary care on the role of illness perceptions

Table 3 Descriptions of illness perceptions (B-IPQ), MRC dyspnoea, FEV1 and Health-Related Quality of Life (CCQ and CRQ) (N = 88–90)

	Mean (SD)	Range	Ref range	Percentage
Illness perceptions (B-IPQ)
Consequences	3.6 (2.5)	0-9	0–10
Timeline	9.1 (2.1)	0-10	0–10
Personal control	6.0 (2.5)	0-10	0–10
Treatment control	6.8 (2.7)	0-10	0–10
Identity	4.0 (2.6)	0-10	0–10
Concern	4.1 (3.1)	0-10	0–10
Comprehensibility	7.6 (2.7)	0-10	0–10
Emotional response	3.0 (3.1)	0-10	0–10
Causes of COPD
Smoking				71%
Heredity				22%
Air pollution				16%
Allergy				8%
Other				42%
MRC dyspnoea	1.7 (1.0)	0-5	0-6
FEV1 (litres)	1.9 (0.6)	1.0-3.7
FEV% pred	67.0 (14.4)	36.5-101.2
HRQoL: CCQ	1.4 (0.8)	0.0-3.8	0-6
HRQoL: CRQ:
CRQ-SAS physical	5.6 (1.3)	2.70-7.00	1-7
CRQ-SAS emotional	5.60 (1.0)	2.73-7.00	1-7

B-IPQ = Brief Illness Perception Questionnaire, CCQ- = Clinical COPD Questionnaire, CRQ-SAS = Chronic Respiratory Disease Questionnaire Self-Administered Short version, CRQ-SAS physical = CRQ-SAS dyspnoea domain and CRQ-SAS fatigue domain, CRQ-SAS emotional = CRQ-SAS emotional domain and CRQ-SAS mastery domain, FEV1 = Forced Expiratory Volume in 1 second, FEV%pred = Forced Expiratory Volume Percentage from predicted, HRQoL = Health-Related Quality of Life, MRC dyspnoea = Medical Research Council dyspnoea scale.

ISSN: 2731-4553