Table III.
Medicationsa and Length of Stay by Age Group
| Age 35–64, n=1401 | Age 65–99, n=317 | N=1718 | Statistics b | |
|---|---|---|---|---|
| Antidepressant (any) | 1318 (94.1%) | 280 (88.3%) | 1598 (93.0%) | χ2=13.14, P<.001 |
| Selective serotonin reuptake inhibitor | 855 (61.0%) | 151 (47.6%) | 1006 (58.6%) | χ2=19.11, P<.001 |
| >1 Antidepressant | 278 (19.8%) | 80 (25.2%) | 358 (20.8%) | χ2=4.56, P=.033 |
| Antipsychotic (any) | 738 (52.7%) | 170 (53.6%) | 908 (52.9%) | χ2=0.09, P=.759 |
| Typical antipsychotic | 53 (3.8%) | 18 (5.7%) | 71 (4.1%) | χ2=2.34, P=.126 |
| Atypical antipsychotic | 711 (50.7%) | 159 (50.2%) | 870 (50.6%) | χ2=0.04, P=.849 |
| >1 Antipsychotic | 44 (3.1%) | 12 (3.8%) | 56 (3.3%) | χ2=0.34, P=.559 |
| Anticonvulsant | 328 (23.4%) | 30 (9.5%) | 358 (20.8%) | χ2=30.49, P<.001 |
| Divalproex | 59 (4.2%) | 4 (1.3%) | 63 (3.7%) | χ2=6.37, P=.012 |
| Lithium | 22 (1.6%) | 3 (0.9%) | 25 (1.5%) | χ2=0.70, P=.402 |
| Benzodiazepine | 449 (32.0%) | 103 (32.5%) | 552 (32.1%) | χ2=0.02, P=.879 |
| >2 Psychotropics | 630 (45.0%) | 129 (40.7%) | 759 (44.2%) | χ2=1.92, P=.166 |
| >3 Psychotropics | 279 (19.9%) | 48 (15.1%) | 327 (19.0%) | χ2=3.82, P=.051 |
| LOS: mean ± SD | 6.5±8.3 | 17.3±11.1 | 10.1±9.4 | t=13/29, P<.001 |
| LOS >10 days | 310 (22.1%) | 222 (70.0%) | 532 (31.0%) | χ2=277.51, P<.001 |
| LOS >12 days | 217 (15.5%) | 192 (60.6%) | 409 (23.8%) | χ2=289.51, P<.001 |
| LOS >23 days | 56 (4.0%) | 72 (22.7%) | 128 (7.5%) | χ2=131.32, P<.001 |
Abbreviation: SD, standard deviation. aMedications are those active at discharge. bDegrees of freedom (df)=1 for all χ2; df (unequal variance) for continuous length of stay (LOS)=399.47.