The proportion of COPD in male 18 was 8.7% and female was 3.7%; OR = 2.45 (1.9 - 3.1), after adjustment, OR = 1.82 (1.3 - 2.6), p < 0.01.
Tỷ lệ mắc BPTNMT ở nam giới là 8,7%, nữ là 3,7%, OR = 2.45 (1.9-3.1) sau hiệu chỉnh, OR = 1,82 (1,3-2,6), p < 0,01.