Differences in l-arginine metabolism and asthma morbidity among asthma patients with and without obstructive sleep apnea

Table 2 Markers of asthma morbidity among participants with and without OSA

	No OSA N = 230	OSA N = 92	Total N = 322	P-value
Resource utilization	114 (50.0%)	60 (66.7%)	174 (54.7%)	0.009
Mean (SD)
ACQ^a	1.5 (1.0)	1.8 (1.2)	1.6 (1.1)	0.029
AQLQ^b	5.4 (1.2)	4.8 (1.3)	5.2 (1.2)	< 0.001
FEV1 (L)^c	2.5 (0.8)	2.2 (0.8)	2.4 (0.8)	0.026
FVC (L)^c	3.3 (1.0)	3.0 (1.0)	3.2 (1.0)	0.047

ACQ: asthma control questionnaire, AQLQ: asthma quality of life questionnaire, FEV1: forced expiratory volume in one second, FVC: forced vital capacity
Higher ACQ scores indicate worse asthma control
Higher AQLQ scores indicate higher rated quality of life
^aN = 316
^bN = 312
^cN = 300

ISSN: 1465-993X