Table 3. Final multivariable model of factors associated with (ln)FeNO among children with SCA.

Covariates	β Estimate (SE)	P value
Male gender	.24 (.11)	0.04
White blood cell count	-.02 (0.015)	0.19
(ln) IgE	.12 (.04)	0.001
Eosinophils (quartile 1=reference)	..	..
Quartile 2	-0.11 (.15)	0.48
Quartile 3	.13 (.15	0.40
Quartile 4	.34 (.15)	0.03
History of wheezing that caused shortness of breath	-.17 (.13)	0.20
ACS episode prior to 4 years of age	-.16 (.11)	0.16

Abbreviations: FeNO=exhaled nitric oxide; SCA= sickle cell anemia; SE=standard error; ACS=acute chest syndrome