Table 3

Reported prevalences (%) and adjusted ORs for symptoms of wheezing, breathlessness, or runny nose, among hairdressers and office workers after specific exposures

Exposures	Hairdressers with symptoms (%)	Office workers with symptoms (%)	Adjusted OR (95% CI)
Tobacco smoke	41	41
Car exhaust	17	19
Perfume or spray^3-150	41	21	2.7 (1.5 to 5.6)
Food	5	14
Organic solvents^3-150	41	29	1.9 (1.0 to 3.8)
Newspapers	12	12
Pollen	29	29
Animal hair	19	15
House dust mites	21	24
Medicines	3	11
Hair dye^3-151	30	4	11.4 (2.7 to 47)
Permanent oil^3-151	31	5	8.7 (2.2 to 35)
Bleaching powder^3-151	44	3	20 (4.3 to 96)
Bleaching dye^3-151	39	4	8.2 (2.2 to 31)

↵3-150 Adjusted for atopy, age, and smoking in logistic regression.
↵3-151 Adjusted for atopy, age, and smoking in logistic regression, limited to hairdressers and those office workers reporting use of any hair treatment products.