Table 3. Multivariate adjusted odds ratiosa (OR) of subjective symptom comparing between the arsenic-affected village and the arsenic-free village.

	All participants of the arsenic-affected village		Without arsenic dermatosis		With arsenic dermatosis
	n=431		n=235		n=196
	ORa	95% CI	ORa	95% CI	ORa	95% CI
Cough	12.8	6.4 - 25.6	12.3	5.8 - 25.9	13.2	6.4 - 27.1
Stomachache	5.8	3.6 - 9.4	4.8	2.8 - 8.2	6.9	4.0 - 11.7
Palpitation	3.6	1.5 - 8.2	2.2	0.8 - 5.7	4.8	2.1 - 11.5
Urination trouble	14.7	3.3 - 65.5	15.7	3.3 - 75.7	14.0	3.0 - 64.7
Spontaneous abortion	2.7	0.8 - 8.4	1.7	0.5 - 6.1	3.8	1.2 - 12.7
Arthralgia	1.0	0.7 - 1.6	0.9	0.5 - 1.4	1.3	0.8 - 1.9

^a ORs adjusted for sex, age, smoking and alcohol consumption, with a reference group of 189 subjects in the arsenic-free village

CI: confidence interval