Obstructive sleep apnoea accelerates FEV1 decline in asthmatic patients

BMC Pulmonary Medicine

Table 3 Univariate analysis of variables associated with average decline of FEV₁, % predicted

Parameter	beta	Standard error	95% CI	p value
Age	−0.053	0.020	−0.093 to − 0.012	0.011
ESS	−0.280	0.085	−0.323 to 0.021	0.084
BMI	−0.077	0.056	−0.189 to 0.036	0.178
Current smoke	−1.173	0.599	−2.367 to 0.021	0.054
AHI	−0.033	0.009	−0.052 to − 0.014	0.001
ODI	−0.035	0.010	−0.056 to −0.015	0.001
SaO2 < 90% (%)	−0.014	0.015	−0.043 to 0.015	0.347
SaO2 < 80% (%)	−0.091	0.094	−0.280 to 0.097	0.336
ICS	−0.091	1.646	−4.581 to 1.977	0.432
ER visit, n/year	−0.941	0.470	−1.877 to − 0.005	0.049

Abbreviations: ESS epworth sleepiness scores, BMI body mass index, AHI apnoea-hypopnoea index, ODI oxygen desaturation index, ICS inhaled corticosteroid, ER emergency department

ISSN: 1471-2466