Association Between Caregiver Strain and Self‐Care Among Caregivers With Hypertension: Findings From the REGARDS Study

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Abstract
Background: Self‐care for adults with hypertension includes adherence to lifestyle behaviors and medication. For unpaid caregivers with hypertension, the burden of family caregiving may adversely impact self‐care. We examined the association between caregiver strain and hypertension self‐care among caregivers with hypertension. Methods and Results: We included participants of the REGARDS (Reasons for Geographic and Racial Differences in Stroke) study who identified as caregivers and had hypertension. Caregiver strain, assessed by self‐report, was categorized as “none/some” or “high.” Hypertension self‐care was assessed individually across 5 domains (Dietary Approaches to Stop Hypertension [DASH] diet, physical activity, alcohol use, cigarette smoking, and medication adherence) and a composite self‐care score summing performance across them. The association between caregiver strain and hypertension self‐care was examined with multivariable linear regression. Among the 2128 caregivers with hypertension, 18.1% reported high caregiver strain. Caregivers with high strain versus those with none/some were less adherent to the DASH diet (50.8% versus 38.9%, P P P P <0.001). In an age‐adjusted model, high caregiver strain was associated with worse hypertension self‐care (β=−0.37 [95% CI, −0.61 to −0.13]); this remained significant but was reduced in magnitude after adjustment for sociodemographics (β=−0.35 [−0.59 to −0.11]), comorbidities (β=−0.34 [−0.57 to −0.10]), caregiving intensity (β=−0.34 [−0.59 to 0.10]), and psychological factors (β=−0.26 [−0.51 to 0.00]). Conclusions: High caregiver strain was associated with worse hypertension self‐care overall and across individual domains. Increased awareness of caregiver strain and its potential impact on hypertension self‐care is warranted.

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