Development and Validation of the National Cancer Center Psychological Symptom Inventory

Abstract

Objective

To report the development and validation of the National Cancer Center Psychological Symptom Inventory (NCC-PSI).

Methods

Psychometric properties of the NCC-PSI were examined using multicenter surveys involving 400 cancer patients in five cancer-treatment hospitals throughout Korea. Related measures including The Mini International Neuropsychiatric Interview (MINI) were administered.

Results

Convergent validity was supported by NCC-PSI's significant associations with related measures. Known-group validity was proven with higher scores of helplessness/hopelessness and anxious preoccupation on the Mini-MAC in the depression and anxiety diagnosis group, defined by the NCC-PSI. Cutoff scores for insomnia, anxiety and depression were identified. Overall, the screening performance of the NCC-PSI was comparable to that of the Distress Thermometer and Patient Health Questionnare-2.

Conclusions

The NCC-PSI represents a meaningful effort to develop a distress screening tool that addresses specific psychological symptoms common in cancer, which are tailored to the local oncology care system with varying degrees of psychosocial care resources.

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