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