Table 1

Characteristics of study subjects

Child	Diagnosis	Sex	Age at diagnosis (years)	Presumed aetiology	CI‡	No. of hospitalised pneumonia episodes	No. BCT lobes on CT	Lobe(s) involved*	Bronchoscopic appearance†
BCT=bronchiectasis; CSLD=chronic suppurative lung disease; NA=not available; PI=previous respiratory infection.
*Lobe(s) involved on HRCT scan.
†See text for descriptions.
‡CI=clinical indication for bronchscopy (see methods section for details of A to F); RUL=right upper lobe; RML=right middle lobe; RLL=right lower lobe; LUL=left upper lobe; LLing=left lingula; LLL=left lower lobe.
1	BCT	F	12.5	PI	A	3	2	RML	I
								LLL	III
2	BCT	F	1.6	PI	B	7	1	LLL	IV
3	BCT	F	1.6	PI, aspiration	D	11	2	RUL	I
								LLL	I
4	BCT	F	11.4	PP	C	2	2	RML	V
								LLL	III
5	BCT	M	2.6	PI	B	3	1	LLL	I
6	CSLD	M	1.0	PI	A	5	0		I
7	BCT	F	6.1	PI	C	6	1	RML	II
8	BCT	M	4.1	PI	B	10	2	RLL	I
								LLL	III
9	BCT	M	3.4	PI	F	1	2	RML	III
								LUL	I
10	BCT	M	10.5	PI	B	1	1	LLL	I
11	CSLD	F	3.2	PI	A	5	0		V
12	BCT	F	10.9	IgG2,3,4 deficiency	A	NA	2	RLL	I
								LLL	I
13	BCT	M	2.5	PI	B	4	1	RML	II
14	BCT	F	3.8	PI	C	4	2	RML	I
								LLL	III
15	BCT	F	4.4	PI	B	2	1	LLL	I
16	BCT	M	1.1	PI	D	11	2	RUL	I
								RLL	I
17	CSLD	F	6.5	PI	A	4	0		I
18	BCT	M	10.7	PI	C	2	2	RML	III
								LLing	I
19	BCT	F	8.2	PI, tuberculosis	B	0	1	LLL	II
20	BCT	F	5.3	PI	B	2	1	RML	II
21	BCT	M	10.4	PI	C	1	2	LUL	III
								LLing	III
22	CSLD	M	3.6	PI	A	4	0		II on RML
23	BCT	F	5.4	PI	E	6	3	RML	I
								RLL	I
								LLL	I
24	BCT	M	11.3	PI	A	13	2	RLL	I
								LLL	I
25	BCT	M	0.7	PI	A	5	1	RLL	I
26	BCT	F	2.0	PI, aspiration	E	3	3	RUL	I
								RLL	I
								LLL	I
27	BCT	M	6.6	PI	A	3	2	RML	I
								LLL	II
28	BCT	F	3.8	PI	C	3	3	RUL	II
								RML	II
								LLL	I
29	CSLD	F	0.6	PI	A	2	0		I
30	BCT	M	1.9	PI	A	8	2	RLL	I
								LLL	I
31	BCT	M	3.4	PI	A	2	2	RUL	IV
								LLL	II
32	BCT	F	0.9	PI	B	2	1	RUL	II
33	BCT	F	14.9	Foreign body	B	NA	1	RLL	I