Clinical Implications of Oscillatory Lung Function during Methacholine Bronchoprovocation Testing of Preschool Children

Table 1

General characteristics of 36 asthma patients.

Characteristic	Mean	% or 95% CI
Sex, male	15	42
Age, years	4.3	4.0–4.6
Height, m	1.08	1.05–1.10
BMI, kg/m^2	15.7	15.1–16.3
Baseline SpO2, %	99	98.8–99.5
Respiratory rate, breaths/min	15	14.2–15.3
Test interval, days	9.7	7.4–12.1
Asthma duration, months	20.0	15.4–24.5
Asthma medication
Step	4	11.1
Step	17	47.2
Step	8	22.2
Step	7	19.4

CI, confidence interval; BMI, body mass index; asthma medication step indicates the medication used prior to first IOS measurements, according to the 2007 Expert Panel Report .