The incidence of nasal allergy has been reported by several workers. Hansel1 found that of 1,000 patients seen in routine office practice, there were 324 with all types of nasal complaints, and among these, 142 had nasal manifestations of allergy. In other words, about one-third of the patients had primary nasal complaints and 44 per cent of these had nasal allergy. The incidence of allergy among all patients was 14.2 per cent. Baum2, according to a recent report, found that among 2,000 similar patients, 700 or about one-third had primary nasal complaints, 191 of which were found to be due to nasal allergy. Baum found, therefore, that 27.3 per cent of the patients with nasal complaints had allergy, and that the incidence of allergy in an otolaryngologic practice is about 10 per cent.
In a review of the cases of 514 patients seen in the Department of Allergy at the Cleveland Clinic during a six months' period in 1933, 326 or 63 per cent had, as major complaints, pollinosis, bronchial asthma, allergic bronchitis, perennial nasal allergy, and nasal allergy and sinusitis. In a review of cases of allergy seen in 215 children in 1934 and 1935, upper respiratory and respiratory allergy were noted in 166 or 77 per cent. An analysis of 1,174 consecutive new patients in the Department of Allergy during 1935 was made in an effort to classify the presenting major problems. Of these patients, 640 or 55.4 per cent had major problems of respiratory allergy, which included. . .