Patient characteristics
| Liver cirrhosis | |||||
| Controls | A | B | C | BZD comsumers | |
| No | 90 | 33 | 41 | 39 | 14 |
| Men | 46 | 18 | 28 | 30 | 3 |
| Women | 44 | 15 | 13 | 9 | 11 |
| Age (y) (mean (SD)) | 63 (9) | 59 (9) | 57 (11) | 50 (11) | 65 (4) |
| Aetiology of cirrhosis | |||||
| Viral | – | 22 | 27 | 28 | – |
| Alcoholic | – | 6 | 11 | 6 | – |
| Viral + alcoholic | – | 5 | 3 | 5 | – |
| Overt encephalopathy (stage) | |||||
| 0 | – | 33 | 16 | 10 | – |
| I | – | – | 16 | 6 | – |
| II | – | – | 9 | 10 | – |
| III | – | – | – | 8 | – |
| IV | – | – | – | 5 | – |
A–C, functional status of the liver classified according to Child-Pugh.