Table 3.
Prescription data of antipsychotics
| Antipsychotics only [n = 123] | Antipsychotics + lorazepam [n = 49] | p value | |
|---|---|---|---|
| Antipsychotics during delirium (%) | |||
| Haloperidol | 88.6 | 89.8 | 0.824a |
| Quetiapine | 13.0 | 24.5 | 0.066a |
| Clozapine | 4.9 | 6.1 | 0.715b |
| Risperidone | – | 2.0 | 0.285b |
| Olanzapine | – | – | – |
| Two antipsychotics (%) | 6.5 | 22.4 | 0.003a |
| Basis of antipsychotic drug prescriptions (%) | 0.037a | ||
| PRN | 15.4 | 4.1 | |
| Regular | 47.2 | 40.8 | |
| Both (PRN + regular)d | 37.4 | 55.1 | |
| Number of hospital days on antipsychotics [median (IQR)] | 7.0 (4.0–10.0) | 11.0 (7.0–16.5) | < 0.001c |
| Basis of lorazepam prescriptions (%) | |||
| PRN | – | 38.8 | – |
| Regular | – | 30.6 | – |
| Both (PRN + regular)d | – | 30.6 | – |
| Number of hospital days on lorazepam [median (IQR)] | – | 7.0 (3.0–11.5) | – |
IQR interquartile range, PRN pro re nata (as needed)
aChi-square test
bFisher’s exact test
cMann–Whitney U test
dContains both simultaneous and consecutive prescriptions