Table 2.
Pharmacological Treatment of Patients With Schizophrenia During the 180-d Period Before Starting FD, HD, or LAR
Treatment | FD Patients, % (N = 948) | HD Patients, % (N = 1631) | LAR Patients, % (N = 116) | Statistics | Group Differencesa | ||
χ2 | df | P | |||||
Any oral antipsychotic | 92.9 | 91.1 | 96.6 | 6.1 | 2 | .046 | LAR > HD |
Any oral atypical antipsychotic | 84.6 | 85.5 | 95.7 | 10.4 | 2 | .006 | LAR > HD, FD |
Selected oral antipsychotics | |||||||
Fluphenazine | 34.5 | 3.7 | 9.5 | 45.5 | 2 | >.0001 | FD > LAR > HD |
Haloperidol | 13.8 | 42.2 | 23.3 | 227.9 | 2 | >.0001 | HD > LAR > FD |
Risperidone | 32.8 | 38.9 | 70.7 | 63.8 | 2 | >.0001 | LAR > FD, HD |
Aripiprazole | 3.8 | 4.6 | 16.4 | 36.0 | 2 | >.0001 | LAR > FD, HD |
Clozapine | 10.4 | 10.6 | 10.3 | 0.1 | 2 | .98 | |
Olanzapine | 45.2 | 41.8 | 36.1 | 4.9 | 2 | .09 | |
Quetiapine | 32.2 | 31.7 | 32.8 | 0.1 | 2 | .94 | |
Ziprasidone | 13.1 | 11.1 | 14.7 | 3.1 | 2 | .22 | |
2+ Oral antipsychotics | 65.1 | 64.0 | 75.0 | 5.5 | 2 | .07 | |
Antipsychotic, MPRb <0.80 | 53.5 | 58.5 | 61.2 | 6.9 | 2 | .03 | HD > FD |
Antipsychotic gap >30 d | 22.7 | 24.5 | 29.5 | 2.8 | 2 | .24 | |
Other psychotropic medications | |||||||
Antidepressant | 50.2 | 47.7 | 56.0 | 3.9 | 2 | .14 | |
Anxiolytic/hypnotic | 47.2 | 45.4 | 56.9 | 6.1 | 2 | .048 | LAR > FD, HD |
Mood stabilizer | 56.3 | 56.1 | 60.3 | 0.8 | 2 | .67 | |
F | df | P | |||||
Antipsychotic MPR, mean (SD) | 0.64 (0.32) | 0.61 (0.32) | 0.63 (0.29) | 1.6 | 2, 2612 | .19 |
Note: Data from 2001 to 2004 Medi-Cal. FD denotes fluphenazine decanoate, HD denotes haloperidol decanoate, and LAR denotes long-acting risperidone. All analyses are based on 180-d period before the start of first depot injection.
Group differences, P < .05.
MPR denotes medication possession ratio and is defined as the proportion of days of medication over the 180-d treatment period.