Health-related quality of life varies in different respiratory disorders: a multi-case control population based study

Table 3 Relationships^a between HRQL (in terms of PCS and MCS), respiratory diseases

	PCS	MCS
	Coeff. (95%CI)	Coeff. (95%CI)
Respiratory diseases^b (vs controls)
NAR	0.1 (−1.4;1.5)	−0.8 (−3.3;1.7)
AR	−0.8 (−2.0;0.4)	− 1.5 (− 3.5;0.5)
CB	− 3.8 (−5.7;-1.9)	−5.5 (−8.7;-2.2)
Past asthma	−0.7 (− 2.0;0.6)	0.7 (− 1.5;2.9)
Current asthma	−1.7 (− 2.8;-0.6)	−2.2 (−4.1;-0.3)
COPD	−5.6 (− 8.1;-3.1)	−4.6 (− 8.8;-0.5)

^aassessed through quantile regression models (estimating conditional medians of the response variable) considering PCS and MCS as dependent variables and respiratory diseases and characteristics of the sample as independent variables (adjusting for sex, age, BMI, educational level, smoking habits, non-respiratory comorbidities, cardiac comorbidities, study cohort and calendar period). Negative regression coefficients indicate a worsening in HRQL at an increase of the independent variable and vice versa
^bNAR non-allergic rhinitis, AR allergic rhinitis, CB chronic bronchitis, PA past asthma, CA current asthma, COPD chronic obstructive pulmonary disease
All the values in bold are statistically significant (p<0.05)

ISSN: 1471-2466