Schizophrenia Research Trends

24Reiko Koide and Akira Tamaokaschizophrenic and normal control samples, respectively, using t-tests. In addition, 59 itemscores of BIQ were compared between high and low score groups in these comparative setsusing t-tests.ResultsBased on the results of the t-test of means of obtained factor scores of schizophrenicdepressive and non-depressive groups, 5 of these proved to be factors that differentiated thetwo groups. These factors and their interpretations are factor A-3 (roundness, t=-2.420,df=37, p=0.021), factor F-2 (powerlessness, t=2.407, df=38, p=0.021), factor F-3(Unusuallystrong gastrointestinal function, t=-2.588, df=38, p=0.014), factor P-1 (Dissatisfuction,t=2.491, df=38, p=0.015) and factor P-2 (Lifelessness, t=2.556, df=38, p=0.015). Amongthese factors, significant differences were found among normal population in factor P-1 (t=5.010, df=40, p=0.000), and factor P-2 (t=2.756, df=40, p=0.009), showing thatschizophrenic and normal groups had common relationships of depression to body imagealong with these factors. The other three of the five factors did not differentiate depressiveand non-depressive groups in normal samples. Also, there was no factor differentiatingdepressive and non-depressive group uniquely found in the normal samples. (See Table 10.)Table 10. BIQ Factors differentiating depressive and non-depressive state. (Study 3.)Factors Schizophrenic ControlD Non-D D Non-DA-1 _ _ _ _A-2 _ _ _ _A-3 -2.220 .449* _ _F-1 _ _ _ _F-2 .794 -.030* _ _F-3 -.165 .620* _ _P-1 .262 -.513* .764 -.331***P-2 .751 -.198* .411 -.356*P-3 _ _ _ _D=Depressive group, Non-D=Non-depressive group. *P