classification | Ultrasound findings Normal Freq (%) | Abnormal Freq (%) | Total Freq (%) |
Not significant (≥500) | 103 (20.6) | 133 (26.6) | 236 (47.2) |
Mild (350 - 499) | 75 (15.0) | 124 (24.8) | 199 (39.8) |
Advanced (200 - 349) | 9 (1.8) | 15 (3.0) | 24 (4.8) |
Severe (<200) | 13 (2.6) | 28 (5.6) | 41 (8.2) |
Total | 200 (40.0) | 300 (60.0) | 500 (100.0) |