A Decision Tree Analysis on Symptom Experience of Asian American Breast Cancer Survivors

Background: Mainly due to their cultural attitudes toward symptoms and breast cancer, Asian American breast cancer survivors tend to suffer from symptoms and often delay in getting treatments, information, and support. To improve their symptom management, it would be important to determine risk groups among them. Decision tree analyses reportedly help determine risk groups by identifying the characteristics that are directly associated with target health outcomes. Objective: Using a decision tree analysis, this study aimed at identifying the characteristics that were closely linked to the symptom experience of Asian American breast cancer survivors. Methods: This was a part of a parent randomized controlled trial among Asian American breast cancer survivors. Only the data from 135 women at the pre-test were included. Multiple instruments were used to collect the data: the Memorial Symptom Assessment Scale-Short Form, the Cancer Behavior Inventory, the PRQ-2000, the Perceived Isolation Scale, and the Supportive Care Needs Survey-Short Form 34. The data were analyzed using latent profile analysis and decision tree analyses. Results: Two most frequently found profiles included the low symptom experience profile (72.6%) and the high symptom experience profile (27.4%). The high symptom experience profile was predicted by 2 combined characteristics; (a) high psychological needs for help (over 60.00 points), and (b) low psychological needs for help (cut point = 60.00), high perceived barriers (cut point = 1.62), and high social isolation (social support) (cut point = 2.33). Conclusions: These characteristics linked to Asian American breast cancer survivors with high symptom experience need to be considered in future intervention development.