From: A study on atypical Kashin–Beck disease: an endemic ankle arthritis
Areas | Counties | Number | Diagnostic result [number of people, detection rate (%)] | ||||
---|---|---|---|---|---|---|---|
Normal | Stage I | Grade II | Grade III | Atypical | |||
Severe endemic area | Yanshou | 124 | 78 (62.9) | 60 (4.8) | 14 (11.3) | 0 (0.0) | 26 (21.0) |
Fuyu | 419 | 64 (15.3) | 127 (30.3) | 106 (25.3) | 15 (3.6) | 107 (25.5) | |
Shangzhi | 225 | 45 (20.0) | 74 (32.9) | 30 (13.3) | 4 (1.8) | 72 (32.0) | |
Moderate endemic area | Tieli | 138 | 93 (67.4) | 11 (8.0) | 9 (6.5) | 0 (0.0) | 25 (18.1) |
Bei'an | 56 | 36 (64.3) | 5 (8.9) | 9 (16.1) | 1 (1.8) | 5 (8.9) | |
Ning'an | 54 | 27 (50.0) | 8 (14.8) | 5 (9.3) | 5 (9.3) | 9 (16.7) | |
Mild endemic area | Acheng | 174 | 137 (78.7) | 14 (8.0) | 2 (1.1) | 0 (0.0) | 21 (12.1) |
Non-KBD area | Qian'an | 119 | 119 (100.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
Total | 1 309 | 599 (45.8) | 245 (18.7) | 175 (13.4) | 25 (1.9) | 265 (20.2) |