Prevalence and clinical implications of bronchiectasis in patients with overlapping asthma and chronic rhinosinusitis: a single-center prospective study

Table 7 Multivariate linear regression analyses for Smith scores and Bhalla scores

Variables	Smith score: multivariate linear regression
Variables	β coefficients	95% CI	P value
NPs	1.74	0.25 to 3.24	0.023
Postbronchodilator FEV₁% predicted	− 0.04	− 0.07 to − 0.01	0.019
BMI	− 0.18	− 0.34 to − 0.01	0.041

Variables	Bhalla score: multivariate linear regression
Variables	β coefficients	95% CI	P value
NPs	1.11	0.45 to 1.77	0.001
Postbronchodilator FEV₁% predicted	− 0.02	− 0.03 to − 0.00	0.029
BMI	− 0.08	− 0.16 to − 0.01	0.032
Positive smoking status^a	0.73	0.03 to 1.44	0.042

BMI body mass index, FEV₁ forced expiratory volume in 1 s, NPs nasal polyps
^aPositive smoking status included ex- or current-smokers

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