OBJECTIVE: We investigated whether parental history of hypertension (FH+) enhances the impact of depressed mood, indexed by Beck Depression Inventory (BDI), on ambulatory blood pressure (ABP). METHODS: Twenty-four-hour ABP, urinary norepinephrine (NE), and cortisol were obtained in 314 unmedicated normotensive and hypertensive men and women (age 18-64 years) who also completed the BDI. RESULTS: Subjects with a positive family history of hypertension (N = 177) exhibited significantly greater mean body mass index (BMI) and ABP compared with subjects without (N = 137). Importantly, when covarying for age, BMI, gender, and race, linear regressions revealed significant FH by BDI interactions. Higher BDI scores were significantly associated with higher 24-hour ABP in FH+ subjects, but not in FH- participants. Relationships were significantly stronger in those with two hypertensive parents vs. those with one vs. those with no hypertensive parents. Increases in BDI scores were significantly related to greater heart rate (HR) and 24-hour urinary NE in both FH+ and FH- groups, although no evidence of a mediational role for NE in the effect of BDI score on blood pressure (BP) or HR was seen. CONCLUSIONS: These findings suggest that depressed mood may be reliably associated with higher BP only among those with an underlying susceptibility to HTN.
OBJECTIVE: We investigated whether parental history of hypertension (FH+) enhances the impact of depressed mood, indexed by Beck Depression Inventory (BDI), on ambulatory blood pressure (ABP). METHODS: Twenty-four-hour ABP, urinary norepinephrine (NE), and cortisol were obtained in 314 unmedicated normotensive and hypertensivemen and women (age 18-64 years) who also completed the BDI. RESULTS: Subjects with a positive family history of hypertension (N = 177) exhibited significantly greater mean body mass index (BMI) and ABP compared with subjects without (N = 137). Importantly, when covarying for age, BMI, gender, and race, linear regressions revealed significant FH by BDI interactions. Higher BDI scores were significantly associated with higher 24-hour ABP in FH+ subjects, but not in FH- participants. Relationships were significantly stronger in those with two hypertensive parents vs. those with one vs. those with no hypertensive parents. Increases in BDI scores were significantly related to greater heart rate (HR) and 24-hour urinary NE in both FH+ and FH- groups, although no evidence of a mediational role for NE in the effect of BDI score on blood pressure (BP) or HR was seen. CONCLUSIONS: These findings suggest that depressed mood may be reliably associated with higher BP only among those with an underlying susceptibility to HTN.
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