Long-term (5 year) safety of bronchial thermoplasty: Asthma Intervention Research (AIR) trial

BMC Pulmonary Medicine

Table 1 Number of Subjects Evaluated Annually out to 5 Years

	Subjects Completing 1 Year Follow-up in AIR Trial	Subjects Enrolling for Longer-Term Follow-up	Subjects Completing Follow-up
			Year 2	Year 3	Year 4	Year 5
BT	52	45	41^a	41^b	43	42^c
Control	49	24	23^d	21^e	-	-

a: 4 subjects missed visit.
b: 2 subjects missed visit; 1 subject withdrew consent; 1 subject Lost-to-Follow-up.
c: 1 subject missed visit.
d: 1 subject missed visit.
e: 2 subjects withdrew consent after completing Year 2 evaluation, and 1 subject withdrew consent mid-Year 3.
Control group subjects exited from study after completing Year 3 evaluation.

ISSN: 1471-2466