Survey of Occupational Allergic Contact Dermatitis and Patch Test among Clothing Employees in Beijing

Table 2

Prevalence (95% confidence interval) of CD, OCD, and OACD among the clothing employees.

	Sewing and ironing workers		Managers		Total		value
	( = 372)		( = 157)		( = 529)
CD	21.8	0.18–0.26	11.5	0.07–0.17	18.7	0.16–0.22	0.005
OCD	19.9	0.16–0.24	10.2	0.06–0.16	17	0.14–0.20	0.007
OACD	10.8	0.08–0.14	3.2	0.01–0.07	8.5	0.06–0.11	0.004

Difference between occupational groups is significant (5).
Chi-square test.
CD, contact dermatitis.
OCD, occupational contact dermatitis.
OACD, occupational allergic contact dermatitis.