Caregiving and Hypertension in Younger Black Women: The Jackson Heart Study.

Background: Caregiving has been associated with high blood pressure in middle-aged and older women, but this relationship is understudied among younger Black women, a population at high risk for hypertension. We examined the associations of caregiving stress and caregiving for high-needs dependents with incident hypertension among reproductive-age women in the JHS (Jackson Heart Study), a cohort of community-dwelling Black adults.

Methods: We included 453 participants, aged 21 to 44 years, with blood pressure <140/90 mm Hg, and not taking antihypertensive medication at baseline (2000-2004). Caregiving stress over the past 12 months was assessed via a single item in the global perceived stress scale. Caregiving for a high-needs dependent status was assessed via a question on hours per week spent caregiving for children (≤5 years or disabled) or older adults. Incident hypertension was defined as systolic blood pressure ≥140 mm Hg, diastolic blood pressure ≥90 mm Hg, or self-report of taking antihypertensive medication at follow-up exams in 2005 to 2008 and 2009 to 2013.

Results: Over a median follow-up of 7.4 years, 43.5% of participants developed hypertension. Participants with moderate/high versus no/low caregiving stress had a higher incidence of hypertension (51.7% versus 40.6%). Higher caregiving stress was associated with incident hypertension after adjustment for sociodemographic and clinical factors, health behaviors, and depressive symptoms (hazard ratio, 1.39 [95% CI, 1.01-1.94]). Being a caregiver for a high-needs dependent was not associated with incident hypertension (adjusted hazard ratio, 0.88 [95% CI, 0.64-1.21]).

Conclusions: Higher caregiving stress among reproductive-age Black women was associated with incident hypertension. Hypertension prevention approaches for this high-risk population may include caregiving stress management strategies.