|
Sample size needed to detect an absolute difference of 15% in the proportion of tranquillised patients (α = 5%, power = 80%). |
||
| Haloperidol + promethazine (% tranquilised) |
Midazolam (% tranquilised) |
N |
|
|
||
| 5 |
20 |
152 |
| 10 |
25 |
200 |
| 15 |
30 |
242 |
| 20 |
35 |
276 |
| 25 |
40 |
304 |
| 30 |
45 |
326 |
| 35 |
50 |
340 |
Huf et al. BMC Psychiatry 2002 2:11 doi:10.1186/1471-244X-2-11 |
||