Result: 63.7% of the patients were males, the mean age was 33.7 ± 4.6 years, the age bracket from 20 to 39 years old was 52.5%, The majority of patients with less than or equal a high school education accounted for 71.3%.
Kết quả: Nam chiếm 63,7%, tuổi trung bình 33,7 ± 4,6 tuổi, nhóm tuổi 20 - 39 tuổi chiếm 52,5%, học vấn ≤ cấp III chiếm 71,3%, ở tỉnh chiếm 56,3%.