Table 2. The prevalence and OR of the PFT, current respiratory symptoms among adult male farmers.

Variables		Exposed to pesticide over 20 years (n = 436)	Never exposed to pesticide (n = 97)	Unadjusted model		Adjusted modela
				OR	95% CI	OR	95% CI
PFT results
	Obstructive pattern	78 (17.9)	8 (8.2)	2.38**	1.17–5.52	1.23	0.57–2.98
	Restrictive pattern	61 (14.0)	13 (13.4)	1.18	0.64–2.32	0.91	0.46–1.87
Current respiratory symptoms
	Cough or sputum	15 (3.4)	1 (1.0)	3.19	0.64–57.86	2.06	3.82–38.24
	Chest discomfortb	35 (8.0)	3 (3.1)	2.59	0.91–10.87	2.33	0.78–10.02
	Wheezing	21 (4.8)	2 (2.1)	2.09	0.60–13.21	1.70	0.46–11.04
	Allergic symptomsc	59 (13.5)	17 (17.5)	0.69	0.39–1.28	0.53**	0.28–1.01

Values are expressed as the mean ± standard deviation or number (%).

OR: odds ratio; PFT: pulmonary function test; CI: confidence interval.

^aAdjusted for age, smoking status; ^bChest discomfort includes dyspnea; ^cAllergic symptom includes sneezing, rhinorrhea, or nasal congestion.

Result of χ² test, ^**p < 0.05 (significant level).