Table 1.

Patient characteristics, procedural details and association with DAOH₃₀

	Patient cohort		DAOH30
	n	%	Mean (95% CI)	P value
Age
< 65 years	35	43.2%	18.0 (14.1–22.0)	Reference
$\ge$ 65 years	46	56.8%	18.9 (15.6–22.2)	1.0
Gender
Male	38	46.9%	21.3 (18.1–24.6)	Reference
Female	43	53.1%	16.0 (12.3–19.7)	< 0.001
Malignancy
Lung cancer	55	67.9%	19.1 (16.2–22.0)	Reference
Oesophagus cancer	9	11.1%	11.4 (0.9–22.0)	0.06
Other cancers	17	21.0%	20.4 (14.8–26.0)	0.9
Urgency of intervention
Elective	18	22.2%	21.7 (15.8–27.5)	Reference
Semi-urgent	42	51.9%	19.4 (16.0–22.8)	0.1
Urgent	21	25.9%	14.1 (9.1–19.1)	< 0.001
Respiratory status
No respiratory support	42	51.9%	22.2 (19.3–25.1)	Reference
Respiratory support	31	38.3%	14.6 (10.2–19.1)	< 0.001
Intubated	8	9.9%	14.1 (3.9–24.4)	0.02
Degree of dyspnea
None	10	12.3%	24.4 (20.4–28.4)	Reference
Mild–moderate	32	39.5%	18.7 (14.3–23.0)	0.09
Severe	36	44.4%	16.7 (13.0–20.5)	0.5
Unknown	3	3.7%	NA	-
Oncological treatment after stenting
None	28	34.6%	13.5 (8.5–18.5)	Reference
Yes	51	63.0%	21.5 (19.0–24.1)	0.04
Unknown	2	2.5%	NA	–
Lesion involving trachea
No	41	50.6%	20.0 (16.5–23.4)	Reference
Yes	40	49.4%	17.0 (13.4–20.7)	0.2
Lesion involving bronchi
No	17	21.0%	17.5 (11.3–23.7)	Reference
Yes	64	79.0%	18.8 (16.0–21.6)	0.9
Lesion involving carina
No	67	82.7%	18.7 (15.9–21.4)	Reference
Yes	14	17.3%	17.9 (10.7–25.0)	0.7
Type of stenosisa
Type 1: Intraluminal	62	75.0%	18.7 (15.9–21.6)	Reference
Type 2: Compression	19	25.0%	19.2 (14.0–24.4)	0.4
Number of affected airway segments
1	35	43.2%	19.2 (15.5–22.9)	Reference
2	26	32.1%	18.9 (14.2–23.6)	0.9
$\ge$ 3	20	24.7%	16.8 (11.1–22.5)	0.09

NA not applicable

^aUsing the Freitag Classification