| Ling’ classification (n) | p | Barium esophagram grade (n) | p | HRM classification (n) | p | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
I | II | III | I | II | III | I | II | III | ||||
6-month | ||||||||||||
 Remission | 82 | 52 | 2 | 0.37 | 71 | 53 | 12 | 0.01 | 3 | 40 | 46 | 0.20 |
 Failure | 6 | 8 | 0 |  | 3 | 5 | 6 |  | 1 | 2 | 2 |  |
1-year | ||||||||||||
 Remission | 70 | 50 | 2 | 0.67 | 63 | 51 | 8 | 0.00 | 3 | 38 | 41 | 0.58 |
 Failure | 18 | 10 | 0 |  | 11 | 7 | 10 |  | 1 | 4 | 7 |  |
2-year | ||||||||||||
 Remission | 61 | 43 | 2 | 0.63 | 53 | 45 | 8 | 0.03 | 3 | 32 | 35 | 0.94 |
 Failure | 27 | 17 | 0 |  | 21 | 3 | 10 |  | 1 | 10 | 13 |  |