. Author manuscript; available in PMC: 2012 Jan 3.

Published in final edited form as: J Asthma. 2010 Feb;47(1):46–50. doi: 10.3109/02770900903483758

TABLE 2.

Relationship of asthma-specific quality of life (overall and emotion and symptom domains) to asthma exacerbations, adjusted for initial symptom frequency and FEV₁^*

	Odds ratio^† (95% confidence interval), p value

Adjustment	Overall	Emotion	Symptoms
Unadjusted	0.73(0.55–0.96)	0.72(0.59–0.88)	0.73(0.57–0.94)
Unadjusted	p = .022	p = .001	p = .013
Symptom frequency	0.75(0.56–0.98)	0.73(0.60–0.90)	0.75(0.57–0.97)
Symptom frequency	p = .038	p = .002	p = .029
FEV₁	0.73(0.55–0.96)	0.72(0.59–0.88)	0.73(0.57–0.94)
FEV₁	p = .023	p = .001	p = .015
Symptom frequency and FEV₁	0.75(0.56–0.99)	0.73(0.60–0.90)	0.75(0.58–0.98)
Symptom frequency and FEV₁	p = .040	p = .003	p = .033

Multiple logistic regression analysis.

^†

Odds ratio per 1-point change in quality of life score.