Table 1.

Patient demographics distributed by age categories

	All patients		< 6 yrs		6–9 yrs		10–12 yrs		13–15 yrs		16–17 yrs
	M	F	M	F	M	F	M	F	M	F	M	F
N	105	80	7	13	27	11	12	12	33	22	49	39
Age (yr)	12.9±4.3	12.6±4.7	3.1±1.5	3.5±1.4	7.4±1.1	7.7±1.0	11.4±0.7	11.2±0.8	14.2±0.8	14.2±0.9	16.7±0.5	16.5±0.5
Height (cm)	158±26 (80–198)	150±23* (91–178)	103±15 (80–115)	104±9 (91–117)	129±7 (115–145)	131±11 (115–145)	149±5 (139–155)	148±8 (137–163)	164±14 (121–188)	161±10 (145–178)	179±7 (158–198)	164±7* (145–175)
Weight (kg)	58±25 (11–149)	53±21 (12–110)	18±5 (11–27)	16±2 (12–20)	32±11 (19–68)	35±13 (23–61)	43±11 (27–61)	46±10 (35–61)	63±16 (40–101)	63±17 (45–110)	77±19 (55–149)	66±11* (50–100)
BMI (kg m−2)	22±5 (14–49)	22±6 (12–47)	17±3 (14–21)	15±0* (12–17)	19±5 (14–36)	21±10 (15–47)	19±4 (14–26)	21±5 (15–28)	23±6 (17–49)	21±6 (17–37)	24±5 (18–38)	24±4 (18–33)
Lung volume (L)	3.1±1.4 (0.7–6.3)	2.3±1.0 (0.4–4.1)	0.9±0.1 (0.8–1.1)	0.5±0.1* (0.4–0.7)	1.3±0.5 (0.7–2.9)	1.5±0.8 (0.8–2.6)	2.0±0.7 (1.0–3.2)	2.0±0.8 (1.0–3.4)	3.4±0.12 (1.5–6.1)	2.4±0.7* (1.3–4.1)	4.1±0.14 (2.2–6.4)	2.9±0.6* (1.6–4.1)
Lung vol on CT (% pred TLC)	60±18 (22–117)	57±20 (18–120)	42±6 (38–48)	29±8 (18–38)	48±19 (22–102)	55±21 (25–85)	59±17 (25–78)	58±30 (27–120)	67±19 (32–117)	53±14* (32–74)	64±13 (34–90)	63±16 (35–100)

Values are mean± SD with range in parenthesis. BMI, body mass index; Lung vol on CT, predicted total lung capacity during the computed tomography scan. TLC, total lung capacity.

^*Significantly different from males, P<0.05.