Table 1.

Baseline Epidemiologic and Clinical Characteristics of the GACRS.

	Non-Exacerbation (N = 168)	Exacerbation (N = 183)	p-Value
Gender
Male	73 (43.5%)	69 (37.7%)	0.324
Female	95 (56.5%)	114 (62.3%)
Age (years)
Mean (SD)	9.40 (1.83)	8.89 (1.88)	0.0109
Median [Min, Max]	9.29 [4.50, 13.3]	8.65 [0.271, 13.0]
Height (cm)
Mean (SD)	133 (15.7)	131 (11.7)	0.161
Median [Min, Max]	133 [0, 163]	129 [108, 167]
Weight (kg)
Mean (SD)	34.2 (12.2)	31.4 (11.1)	0.0245
Median [Min, Max]	30.9 [15.0, 71.7]	27.9 [17.0, 81.6]
BMI
Mean (SD)	18.6 (4.35)	17.8 (3.56)	0.0634
Median [Min, Max]	17.2 [11.3, 41.4]	16.8 [12.7, 34.0]
% Predicted Pre-BD FEV1
Mean (SD)	98.6 (15.1)	100 (17.1)	0.423
Median [Min, Max]	97.5 [53.1, 144]	99.6 [46.2, 180]
% Predicted Pre-BD FVC
Mean (SD)	101 (15.3)	104 (16.0)	0.0662
Median [Min, Max]	99.0 [52.5, 151]	102 [54.6, 174]
FEV1/FVC pre-bronchodilator
Mean (SD)	87.5 (7.60)	85.6 (7.99)	0.0283
Median [Min, Max]	87.5 [65.3,100]	86.0 [61.8,99.9]
FEV1/FVC post-bronchodilator
Mean (SD)	89.9 (6.02)	88.2 (7.07)	0.0179
Median [Min, Max]	89.4 [67.0,100]	89.2 [66.4,100]
Bronchodilator Response as % of baseline FEV1
Mean (SD)	4.38 (8.47)	6.37 (9.57)	0.0405
Median [Min, Max]	2.88 [−15.3,48.6]	5.10 [−16.3,47.2]
Inhaled Steroids
No	88 (52.4%)	70 (38.3%)	0.0108
Yes	80 (47.6%)	113 (61.7%)
Total IgE
Mean (SD)	1.79 (0.408)	1.81 (0.391)	0.596
Median [Min, Max]	2.00 [1.00,2.00]	2.00 [1.00,2.00]
Eosinophil Count
Mean (SD)	1.40 (0.491)	1.51 (0.501)	0.0444
Median [Min, Max]	1.00 [1.00,2.00]	2.00 [1.00,2.00]

% predicted Pre-BD FEV1: Percent predicted pre-bronchodilator forced expiratory volume in one second. % predicted Pre-BD FVC: Percent predicted pre-bronchodilator forced vital capacity. % predicted FEV1/FVC post-BD: Percent predicted post-bronchodilator FEV1/FVC ratio. BD Response: Bronchodilator response as a percentage of pre-bronchodilator FEV1. Inhaled steroids: respondents indicating use of inhaled corticosteroids in previous year.