Table 1 Demographic characteristics of children with a history of recurrent pneumonia (RP), with and without non-cystic fibrosis bronchiectasis (non-CF BE)

Gender, F:M

7:14

8:13

Mean age ± SD at enrolment, years

12.2 ± 4.5

9.2 ± 3.9

0.02

Mean age ± SD at diagnosis, years

6.6 ± 2.9

4.7 ± 3.0

0.03

Gestational age (weeks)

 <32

1 (4.7 %)

4 (19.0 %)

0.33 (0.03-3.65)

 32-36

2 (9.5 %)

2 (9.5 %)

1.05 (0.12-8.95)

 ≥37

18 (85.7 %)

15 (71.4 %)

0.35

1 (ref)

Birth weight (grams)

 <2500

2 (10.0 %)

7 (33.3 %)

1 (ref)

 ≥2500

19 (90.5 %)

14 (66.7)

0.13

3.19 (0.53-19.2)

Respiratory distress at birth¹

 No

16 (80.0 %)

13 (61.9 %)

1 (ref)

 Yes

4 (20.0 %)

8 (38.1 %)

0.20

0.54 (0.12-2.32)

Intubation at birth^a

 No

16 (84.2 %)

16 (76.2 %)

1 (ref)

 Yes

3 (15.8 %)

5 (23.8 %)

0.70

0.79 (0.15-4.14)

Nasal CPAP at birth^a

 No

17 (89.5 %)

16 (76.2 %)

1 (ref)

 Yes

2 (10.5 %)

5 (23.8 %)

0.41

0.57 (0.09-3.72)

Oxygen therapy at birth^a

 No

16 (84.2 %)

15 (71.4 %)

1 (ref)

 Yes

3 (15.8 %)

6 (28.6 %)

0.46

0.64 (0.13-3.26)

Breastfeeding >3 months^a

 No

8 (40.0 %)

12 (57.1 %)

1 (ref)

 Yes

12 (60.0 %)

9 (42.9 %)

0.27

1.94 (0.52-7.28)

No. of siblings

 0

12 (57.1 %)

9 (42.9 %)

1 (ref)

 1+

9 (42.9 %)

12 (57.1 %)

0.35

0.52 (0.14-1.91)

Age at start of day care attendance^a

 <3 years

6 (31.6 %)

10 (52.6 %)

1 (ref)

 ≥3 years

13 (68.4 %)

9 (47.4 %)

0.19

2.06 (0.53-8.10)

Passive smoking exposure

 No

15 (71.4 %)

10 (47.6 %)

1 (ref)

 Yes

6 (28.6 %)

11 (52.4 %)

0.12

0.28 (0.07-1.16)