Perceived Self-Efficacy, Gender Roles, and Cultural Identity As Determinants of Vascular and Neurovascular Health in Métis People in Canada.

BACKGROUND: Métis people, a distinct Indigenous group in Canada, have unique culture, identity, and experiences, although they have a shared history of colonization with other Indigenous groups. Although they are actively reclaiming and revitalizing their culture, identity, and community connections, Métis people remain disproportionally burdened by chronic illnesses, including cardiovascular diseases. This study examined relationships of psychosocial factors-self-efficacy, cultural identity affiliation, and gender role responsibilities-with established cardiovascular risk indicators in Métis people. METHODS: Métis adults (N = 72, 67% female, mean age = 39 ± 16 years) were invited to complete questionnaires assessing self-efficacy, cultural identity, and gender roles responsibility. Vascular and neurovascular indicators were assessed using finger photoplethysmography and infrared photoelectric sensors with a 3-lead electrocardiograph. RESULTS: Self-efficacy (β = -0.34, P < 0.01) and Métis identity (β = 0.29, P = 0.01) were associated with lower-body peripheral pulse wave velocity, reflecting decreased and increased arterial stiffness, respectively. Indoor housework responsibility moderated the relationship between self-efficacy and baroceptor sensitivity (β = 0.28, P = 0.03). Self-efficacy moderated by outdoor housework responsibility was associated with high frequency heart rate variability, indicating higher parasympathetic activation. Specifically, Métis persons with high levels of self-efficacy and responsibility for outdoor housework had worse heart rate variability than did persons with a high level of self-efficacy and a lower level of outdoor housework responsibility. CONCLUSIONS: Self-efficacy, housework roles, and cultural identity affiliation contribute significantly to some vascular and neurovascular health parameters in Métis people. There is an opportunity to enhance vascular and neurovascular health by developing community-driven strength-based approaches, grounded in Métis peoples' resilience, self-determination, and cultural identity.