Table E5. Absolute risks for persistence of AR_bp up to age 16 years in relation to IgE reactivity to PR-10 proteins at 4 and 8 years of age, respectively.

4 y (n = 19)†	No.	Transient (n = 7 [36.8%])		Persistent* (n = 12 [63.2%])
		No.	Percent	No.	Percent
No IgE reactivity	5	5	100	0	0
Bet v 1 only	0	—	—	—	—
Bet v 1 + any PR-10 protein	14	2	14.3	12	85.7
Bet v 1 + Mal d 1	14	2	14.3	12	85.7
Bet v 1 + Cor a 1.04	13	2	15.4	11	84.6
Bet v 1 + Ara h 8	6	0	0	6	100
Bet v 1 + Pru p 1	11	1	9.1	10	90.9
Bet v 1 + Aln g 1	9	0	0	9	100
Bet v 1 + Api g 1	2	0	0	2	100
Bet v 1 + Act d 8	4	0	0	4	100
Bet v 1 + Gly m 4	3	0	0	3	100
8 y (n = 66)‡	No.	Transient (n = 14 [21.2%])		Persistent (n = 52 [78.8%])
		No.	Percent	No.	Percent
No IgE reactivity	13	7	53.9	6	46.2
Bet v 1 only	3	0	0	3	100
Bet v 1 + any PR-10 protein	50	7	14.0	43	86.0
Bet v 1 + Mal d 1	48	5	10.4	43	89.6
Bet v 1 + Cor a 1.04	49	6	12.2	43	87.8
Bet v 1 + Ara h 8	44	5	11.4	39	88.6
Bet v 1 + Pru p 1	39	4	10.3	35	89.7
Bet v 1 + Aln g 1	28	3	10.7	25	89.3
Bet v 1 + Api g 1	18	1	5.6	17	94.4
Bet v 1 + Act d 8	14	1	7.1	13	92.9
Bet v 1 + Gly m 4	15	1	6.7	14	93.3

^*Reported symptoms to birch pollen at both 8 and 16 years of age. Only 1 child reported symptoms at age 8 years but not at age 16 years and 1 child at age 16 years but not at age 8 years.

^†tAR_bp at age 4 years.

^‡AR_bp at age 8 years but not at age 4 years.