Table 2.

Subject characteristics

	Total (n=127)	COAST (n=86)	SARP (n=41)	Ages 8–12 (n=63)	Ages 13–15 (n=30)	Ages 16–18 (n=34)
Age (years)	12.9±3.4	12.8±13.2	13.1±3.6	10.0±1.5	14.7±2.0	16.8±0.8
Gender (F:M)	54:73	37:49	17:24	28:35	9:21	17:17
Pre-BD-FEV1 (% predicted)	101.1±15.9	102.7±16.5	97.6±14.1	102.0±16.9	99.8±16.0	100.7±14.2
Pre-BD- FEV1/FVC (% predicted)	92.8±8.5	93.6±7.6	91.3±10.3	93.5±7.6	91.8±8.8	92.6±9.8
FEV1 reversibility (% predicted)	6.4±8.2	5.7±6.7	8.0±10.7	5.5±8.3	6.9±7.3	7.8±8.9
Pre-MR exam symptoms	2 (1.6%)	0 (0%)	2 (4.9%)	0 (0%)	2 (6.7%)	0 (0%)
Anxiety	10 (7.9%)	8 (9%)	2 (4.9%)	5 (7.9%)	2 (6.7%)	3 (8.8%)

BD bronchodilator, COAST Childhood Origins of ASThma, F female, FEV1 forced expiratory volume-one second, FVC forced vital capacity, M male, SARP Severe Asthma Research Program