The rate of asthma patients by occupation: Occupation Hong Thai (n=200) Quoc Tuan (n=255) Total (n=455) P n (%) n (%) n (%) Farmer 141 70, 5 182 71, 4 323 71, 0 >0, 05 Worker 19 9, 5 24 9, 4 43 9, 4 >0, 05 Officials and civil servants 5 2, 5 1 0, 4 6 1, 3 >0, 05 Retire 22 11, 0 31 12, 1 53 11, 6 >0, 05 Student 2 1, 0 2 0, 8 4 0, 9 >0, 05 Housewives, traders... 11 5, 5 15 5, 9 26 5, 7 >0, 05 Occupation related illness 34 17, 0 47 18, 4 81 17, 8 >0, 05 Comment: The majority of people working in agriculture account for 71.0%; Retire 11.6%; 9.4% workers; 41 Table 3.8.