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. 2021 Oct 20;23(10):e29218. doi: 10.2196/29218

Table 1.

Baselinea patient characteristics (N=26).

Characteristics Value
Age (years), median (IQR) 13.4 (11.4-14.6)
Age group, n (%)

6-11 years 8 (31)

12-18 years 18 (69)
Male, n (%) 12 (46)
Initial ICSb dose µg/dayc, mean (SD) 488.5 (353.6)
(C-)ACTd score (n=7), median (IQR) 20 (15-23)
ACTd score (n=17), median (IQR) 22 (18-27)
(C-)ACT <20 points (n=21), mean (SD) 8 (38.1)
6-11 years (n=6)

z-FEV1e, mean (SD) –0.30 (0.80)

z-FVCf, mean (SD) 0.26 (0.50)

Tiff (%), median (IQR) 84.08 (73.19-92.00)

z-FEF25-75g, mean (SD) –0.22 (1.49)

Color zone not green, n (%) 0 (0)
12-18 years (n=17)

z-FEV1, mean (SD) –1.53 (1.47)

z-FVC, mean (SD) –0.65 (2.47)

Tiff (%), median (IQR) 81.87 (77.84-89.20)

z-FEF25-75, mean (SD) –1.37 (1.07)

Color zone not green, n (%) 6 (35)

aBaseline lung function outcomes were defined as the first measurement within 31 days of receiving the FEV1 measurement device. Three of the included participants did not perform a baseline lung function measurement.

bICS: inhaled corticosteroids

cBeclomethasone or equivalent dose.

d(C-)ACT: (Childhood) Asthma Control Test.

eFEV1: forced expiratory volume in 1 second.

fFVC: forced vital capacity.

gFEF: forced expiratory flow.