Table 2 Gender, age and coffee consumption in three treatment groups.
From: The impacts of nitrous oxide gas on sleep quality during alcohol withdrawal
| Â | Nitrous oxide | Oxygen | Air | Total |
|---|---|---|---|---|
Gender | ||||
Male | 25 | 21 | 23 | 69 |
Female | 7 | 9 | 7 | 23 |
Age | ||||
27-36 | 6 | 3 | 8 | 17 |
37-46 | 14 | 13 | 12 | 39 |
47-56 | 10 | 12 | 10 | 32 |
56 + | 2 | 2 | 0 | 4 |
Coffee consumption | ||||
0 cups/day | 9 | 9 | 3 | 21 |
1-2 cups/day | 20 | 19 | 21 | 60 |
3-5 cups/day | 1 | 2 | 3 | 6 |