Table 2

Characteristics of children new to asthma controller therapy, stratified by full cohort and survey responder cohort

Characteristic

Full cohort (n = 10,004)

Survey responders (n = 635)

p value


Mean age (SD), yr

8.0 (3.8)

8.1 (3.8)

0.35

Age 0-2 yr, n (%)

806 (8.1%)

51 (8.0%)

Age 3-5 yr, n (%)

2155 (21.5%)

143 (22.5%)

Age 6-8 yr, n (%)

2307 (23.1%)

126 (19.8%)

Age 9-11 yr, n (%)

2402 (24.0%)

165 (26.0%)

Age 12-14 yr, n (%)

2334 (23.3%)

150 (23.6%)

Male sex, n (%)

5942 (59.4%)

365 (57.5%)

0.29

Smoking status

0.22

Non smoker

5651 (56.5%)

366 (57.6%)

Smoker

532 (5.3%)

31 (4.9%)

Ex smoker

77 (0.8%)

6 (0.9%)

Passive smoker

152 (1.5%)

3 (0.5%)

Unknown smoking status

3592 (35.9%)

229 (36.1%)

BMI, n

5816

393

Mean BMI (SD)

17.3 (5.3)

17.1 (5.0)

0.32

Median BMI (range)

16.6 (5.0-49.6)

16.7 (5.2-47.7)

0.75

Asthma duration: mean (SD), yr

4.3 (3.6)

4.4 (3.6)

0.56

Median (range), yr

3.7 (0.0-15.0)

3.9 (0.0-14.0)

0.62

Asthma controller therapy prescription at index date, n (%)

0.437

ICS monotherapy

9059 (90.6%)

575 (90.6%)

LABA in fixed dose combination

574 (5.7%)

43 (6.8%)

ICS + LABA

124 (1.2%)

4 (0.6%)

LTRA monotherapy

91 (0.9%)

6 (0.9%)

ICS + LTRA

55 (0.6%)

1 (0.2%)

Other

101 (1.0%)

6 (0.9%)


BMI = body mass index; ICS = inhaled corticosteroids; LABA = long-acting β2-agonists (in fixed dose combination is with ICS); LTRA = leukotriene receptor antagonists.

Thomas et al. BMC Pulmonary Medicine 2010 10:29   doi:10.1186/1471-2466-10-29

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