Baseline demographic and clinical characteristics of the achalasic patients in each treatment group (mean (SD) or number)
| Botx 50 U (n=40) | Botx 100 U (n=38) | Botx 200 U (n=40) | |
| Sex (M/F) | 18/22 | 24/14 | 19/21 |
| Mean age (years) | 54.7 (19) | 55.5 (18.5) | 55 (18) |
| Symptom duration (months) | 34.4 (31) | 51.9 (70) | 55 (56) |
| Previous dilatation/myotomy | 3/0 | 3/0 | 1/2 |
| LES basal pressure (mm Hg) | 36 (14.5) | 34.8 (9.5) | 32 (8) |
| Vigorous achalasia | 14/40 | 11/38 | 11/40 |
| Oesophageal diameter (cm) | 3.9 (1) | 4.3 (1.1) | 4.2 (0.9) |
| Symptom score | 5.3 (1.5) | 5.4 (1.7) | 5 (1.5) |
| Weight loss (kg) | 4.3 (4) | 4 (4.9) | 3 (3.3) |