Age | City | Urban and rural junction | Rural | ||||||
Number of people examined | Positive number | Positive rate (%) | Number of people examined | Positive number | Positive rate (%) | Number of people examined | Positive number | Positive rate (%) | |
7 | 319 | 42 | 13.17% | 639 | 72 | 11.27% | 320 | 30 | 9.38% |
9 | 320 | 39 | 12.19% | 640 | 54 | 8.44% | 320 | 15 | 4.69% |
12 | 320 | 37 | 11.56% | 640 | 64 | 10.00% | 320 | 27 | 8.44% |
14 | 312 | 42 | 13.46% | 632 | 72 | 11.39% | 320 | 30 | 9.38% |
17 | 319 | 56 | 17.55% | 639 | 79 | 12.36% | 320 | 23 | 7.19% |