Correlation between Performance-Based and Interview-Based Cognitive Measurements in Patients with Schizophrenia
- Author:
Dong-Wook JEON
1
;
Do-Un JUNG
;
Minkyung OH
;
Jung-Joon MOON
;
Sung-Jin KIM
;
Yeon-Sue KIM
Author Information
- Publication Type:Original Article
- From:Psychiatry Investigation 2020;17(7):695-701
- CountryRepublic of Korea
-
Abstract:
Objective:The Measurement and Treatment Research to improve Cognition in Schizophrenia Consensus Cognitive Battery (MCCB) is used to measure the cognitive function of patients with schizophrenia. In some situations, interview-based measures such as the Schizophrenia Cognition Rating Scale (SCoRS) may be appropriate. In this study, we analyzed the correlation between performance- and interview-based measurements in patients with schizophrenia.
Methods:Fifty-six clinically stable patients were recruited. To evaluate cognitive function, we used the MCCB performance-based measure and the SCoRS interview-based measure. Measurements were taken at baseline, and 2 weeks and 3 months later. Spearman correlations were computed between each SCoRS item’s interviewer rating and each MCCB score.
Results:The correlation between the MCCB overall T score and the SCoRS global score was the strongest (r=-0.52), while the SCoRS total score and the MCCB Speed of Processing score also correlated (r=-0.48). The SCoRS global score showed statistically significant correlations with all seven MCCB domains and the overall T score.
Conclusion:This study reveals correlations between MCCB domains and SCoRS items. Since we find that interview-based measurements are highly correlated with performance-based measurements, we suggest them as a useful cognitive function evaluation tool that can easily be applied in clinical settings.
