Table 5.

Univariate binary logistic regression analysis of the demographic characteristics for ACO

	ACO n	ACO (%)	OR (95% CI)	p
Gender
Female	13/247	5.3	1.00	0.001
Male	27/91	29.7	7.59 (3.70–15.55)
SPY
<14 SPY	7/256	2.7	1.00	0.001
≥14 SPY	33/82	40.2	23.95 (10.02–57.25)
MAO
<40.5	12/182	6.6	1.00	0.002
≥40.5	28/156	17.8	3.09 (1.51–6.32)
Age
<57.5	12/189	6.3	1.00	0.001
≥57.5	28/149	18.8	3.41 (1.67–6.97)
SPY and MAO
SPY <14 and MAO <40.5	18/282	6.4	1.00	0.001
SPY ≥14 and MAO ≥40.5	22/56	39.3	9.49 (4.62–19.45)
SPY and age
SPY <14 and age <57.5	15/288	5.2	1.00	0.001
SPY ≥14 and age ≥57.5	25/50	50	18.2 (8.51–38.91)
SPY, MAO, and age
SPY <14, MAO <40.5, age <57.5	20/296	6.8	1.00	0.001
SPY ≥14, MAO ≥40.5, age≥57.5	20/42	47.6	12.54 (5.88–26.73)

N: number of patients with asthma; CI: confidence interval; SPY: smoking pack-year; MAO: mean age of asthma onset; OR: odds ratio; ACO: asthma-COPD overlap