The characteristics and prognosis of bronchiectasis patients with airflow limitation: a prospective longitudinal study

Table 1 Baseline characteristics of the study population stratified by the severity of COPD as well as those who were lost to follow-up

	No airflow limitation	Airflow limitation		Airflow limitation	Three-groups analysis	No airflow limitation vs. Airflow limitation
	No airflow limitation	Mild-to-moderate	Severe	Airflow limitation	p value	p value
Subject n	97	49	43	92
Demographics
Age years	64(52,69.5)	67(60,72.5)	66.5(53,69)	66(56.25,72)	0.0934	0.1337
Male sex, n(%)	39(40.21)	30(61.22)	26(60.47)	56(60.87)	0.0177	0.0045
BMI (kg/m2)	21.33 ± 3.75	21.84 ± 3.01	21.52 ± 4.47	21.69 ± 3.75	0.7441	0.5168
Medical history(years)
years ≤ 1	46.39	34.69	25.58	30.43	0.0039	0.0014
1 < years ≤ 10	36.08	30.61	25.58	28.26
years > 10	17.53	34.69	48.84	41.3
Smoking
Current	12.37	10.20	6.98	8.7	0.1552	0.046
Former	11.34	26.53	23.26	25
Never	76.29	63.27	69.77	66.3
History of malignancy	9.28	8.16	4.65	6.52	0.6448	0.4835
Hypertension	31.96	34.69	34.88	34.78	0.9186	0.6806
Diabetes	7.22	8.16	11.63	9.78	0.6852	0.5264
Coronary atherosclerotic heart disease	6.19	18.37	23.26	20.65	0.0106	0.0033

BMI is presented as the mean ± SD, age is presented as the median (IQR), and all other data are presented as percentages. The three-group analysis included nonairflow limitation, mild-to-moderate airflow limitation and severe airflow limitation

ISSN: 1471-2466