Table I.

Clinical features of the general study population

Variable	Level	No.	%	Symptoms				ORc	95% CI	P value
				Severe		Mild
				No.	%	No.	%
Overall		395	100%	256	62%	139	33%
Sex	Female	221	56%	79	57%	142	55%	1
	Male	174	44%	60	43%	114	45%	1.1	0.6-1.6	.794
Age	<14 y	32	8%	24	10%	8	6%	1
	>14 y	359	92%	228	90%	131	94%	0.58	0.2-1.3	.193
Ara h 1 (7S globulin)	No	269	84%	177	82%	92	87%	1
	Yes	53	16%	39	18%	14	13%	1.44	0.7-2.8	.27
Ara h 2 (2S albumin)	No	275	82%	170	78%	105	90%	1
	Yes	60	18%	48	22%	12	10%	2.47	1.2-4.8	.007
Ara h 3 (11S globulin)	No	268	88%	173	87%	95	91%	1
	Yes	36	12%	27	14%	9	9%	1.65	0.7-3.6	.221
Ara h 6 (2S albumin)	No	183	85%	120	82%	63	93%	1
	Yes	32	15%	27	18%	5	7%	2.283	1.1-7.7	.035
Ara h 8 (PR-10)	No	224	69%	169	78%	55	51%	1
	Yes	100	31%	47	22%	53	49%	0.289	0.2-0.5	<.001
Ara h 9 (LTP)	No	108	29%	63	26%	45	37%	1
	Yes	262	71%	184	74%	78	63%	1.68	1.1-2.7	.027
Phl p 12 (profilin)	No	226	82%	171	88%	55	66%	1
	Yes	51	18%	23	12%	28	34%	0.264	0.1-0.5	<.001

Phl p, Phleum pratense.