Table 2

Patient characteristics before switching from risperidone to olanzapine and from olanzapine to risperidone
OLZ-RIS (n=162) RIS-OLZ (n=136)
Age (years) a 37.2 ± 13.3 36.5 ± 12.5
Male (%)b 51.2 51.9
Age at first service contact for schizophrenia (years)a 27.6 ± 10.3 27.9 ± 10.5
Duration of illness (years)a 9.7 ± 10.1 8.8 ± 8.9
CGI-SCH overalla 3.5 ± 1.2 3.6 ± 1.2
CGI-SCH positivea 3.0 ± 1.4 3.0 ± 1.4
CGI-SCH negativea 3.1 ± 1.3 3.2 ± 1.3
CGI-SCH cognitivea 2.8 ± 1.3 3.1 ± 1.3
CGI-SCH depressivea 2.7 ± 1.3 3.0 ± 1.4
Current alcohol abuse (%)b,* 5.0 1.5
Current substance abuse (%)b 2.5 3.7
Being hostile (%)b 9.9 11.0
Having a spouse/partner (%)b 30.4 24.2
Living independently (%)b 55.9 49.6
Being socially active (%)b 80.1 77.8
Being employed (%)b 29.8 25.2

a Data presented as mean (SD), t-test employed.

b Data presented as %, chi-test employed.

* Significant at p<0.05.

OLZ-RIS: Patients who switched from olanzapine to risperidone.

RIS-OLZ: Patients who switched from risperidone to olanzapine.

CGI-SCH: Clinical Global Impression-Schizophrenia.

Hong et al.

Hong et al. BMC Psychiatry 2012 12:218   doi:10.1186/1471-244X-12-218

Open Data