P-value | Khat-Free Days (No = 60) | Khat-Chewing Days (No=60) | Ventricular Arrhythmia |
| 0 | 0 | Grade 0 No VPCs |
<0.05 | 16 (26.6%) | 39 (65%) | Grade 1 < 30 VPCs /hr |
<0.05 | 8 (13.3%) | 29 (48.3%) | Grade 2 > 30 VPCs /hr |
0 | 0 | 0 | Grade 3 Multiform VPCs |
<0.05 | 9 (15%) | 28 (46.6%) | Grade 4a Couplets |
<0.05 | 2 (3.3%) | 8 (13.3%) | Grade 4b Salvos of V.T |
0 | 0 | 0 | Grade 5R on T Phenomenon |