Joel Alcantara, DC, Andrew Whetten, MS, Jeanne Ohm, DC, and Joey Alcantara
Objective: To assess the predictive relationship between various quality of life (QoL) domains and sense of coherence (SOC).
Methods: We measured the SOC and QoL of patients using the SOC-29 and the Patient-Reported Outcomes Measurement Information System, respectively. Predictive relationships utilized random forest regression analysis.
Our convenience sample consisted of 1980 responders (average age=40.72 years; 1494 females). The mean SOC score was 148.3 (SD=22.37). The mean PROMIS T scores were: physical functioning (50.97), anxiety (52.03), depression (47.47), fatigue (51.15), sleep disturbance (49.85), ability to participate in social roles and activities (54.44), pain interference (51.27), global physical health (GPH) (49.34) and global mental health (GMH) (50.7). The variable importance plots indicated that GMH, anxiety, and depression were several magnitudes higher as predictors for SOC compared to physical domains (i.e., physical functioning, pain interference). However, multi-dimensional partial dependence plots demonstrated an interaction between physical domains such as fatigue and sleep disturbance to SOC. Therefore, physical domains of QoL cannot be discredited as nonessential in the prediction and understanding of a person’s SOC.
Despite the strong predictive relationship of mental health domains to SOC, physical domains cannot be discounted as playing a role.
Highlights of Study
Presented at ACC-RAC 2019: Baltimore, MD Mar 14-16, 2019