Table 7 Distribution of EEG findings among studied patients and control groups
From: Impact of tramadol and heroin abuse on electroencephalography structure and cognitive functions
Tramadol group (n = 40) | Heroin group (n = 40) | Control group (n = 40) | χ2 | Df | p | ||||
|---|---|---|---|---|---|---|---|---|---|
No | % | No | % | No | % | ||||
No paroxysmal activity | 19 | 47.50 | 25 | 62.50 | 32 | 80 | 12.3 | 10 | 0.268 |
Generalized high amplitude paroxysmal slow activity | 15 | 37.50 | 11 | 27.50 | 8 | 20 | |||
Focal paroxysmal slow activity | 0 | 0.00 | 4 | 10.00 | 0 | 0 | |||
Scattered central delta theta activity | 3 | 7.50 | 0 | 0 | 0 | 0 | |||
Paroxysmal fast beta activity | 1 | 2.50 | 0 | 0 | 0 | 0.0 | |||
Polymorphic activity | 2 | 5.00 | 0 | 0.0 | 0 | 0.0 | |||