Perceived Stress, Cortisol Responses, and the Effect of Social Networks among Uninsured Free Clinic Patients

Stress among free clinic patients is an important issue to address in health care. Evaluating the differences between perceived stress and physiological stress will help healthcare professionals to better understand the stress and coping management skills that will improve health outcomes for underserved populations. The aim of this study was to accelerate research to better understand the biological and psychological aspect of stress in health disparities.

This was a cross-sectional study using a convenience sample of free clinic patients aged 18 years and older who spoke English and/or Spanish. Multiple modals of data were collected from 178 participants during summer 2019, including a self-administered paper survey and a biomedical saliva sample. Descriptive statistics were used to present the characteristics of the participants, and a correlation heatmap was used to show a graphical representation of the main variables. Two models of multivariable regression were performed to understand factors associated with cortisol and perceived stress.

Higher levels of perceived stress were not significantly more prevalent than higher levels of salivary cortisol among free clinic patients; however, higher levels of social networking were significantly associated with lower levels of perceived stress. Our analysis revealed that having more friends in a social network was slightly more associated with lower levels of perceived stress than having more family members.

The result of this study provides awareness to healthcare promoters and educators concerning the health of uninsured patients. More specifically, this study provides a foundation to understand the salivary cortisol levels and the relation to perceived stress among this population. Further studies are needed to measure salivary cortisol repeatedly during a period of time among a larger population to better understand the reasons behind normal cortisol level manifesting along with chronic stress.