Table 1.

Prevalence of Phleum pratense Pollen Components

	Positive Rate of Specific IgE to Each Component of Phleum pratense in Different Areas
	Total (n=73)	Prevalence	Beijing (n=49)	Prevalence	Shenmu (n=16)	Prevalence	Shizuishan (n=13)	Prevalence
Phl p 1	16	22%	4	8%	10	63%	2	25%
Phl p 2	0	0%	0	0%	0	0%	0	0%
Phl p 5	10	14%	0	0%	10	63%	0	0%
Phl p 6	6	8%	0	0%	6	38%	0	0%
Phl p 7	2	3%	2	4%	0	0%	0	0%
Phl p 12	33	45%	24	49%	3	19%	6	75%