Table 4.

Risk of Peanut Allergy in Siblings of a Peanut-Allergic Child

Risk of Peanut Allergy in	Unadjusted Odds Ratio	95% CI	Adjusted Odds Ratio	95% CI
Any sibling	7.12	2.18-23.28	6.72*	2.04-22.12
Younger sibling†	9.08	1.63-50.40	11.76‡	2.46-56.27
Older sibling§	5.92	1.14-30.69	6.31*	1.20-33.23

CI = confidence interval.

*Adjusted for parental history of asthma.

^†If index child had a peanut allergy, risk of peanut allergy in a younger sibling.

^‡Adjusted for parental history of asthma and physician diagnosis of asthma in index child.

^§If older sibling had a peanut allergy, risk of peanut allergy in the index child.