TY - JOUR
T1 - Effect of social support on nocturnal blood pressure dipping
AU - Rodriguez, Carlos J.
AU - Burg, Matthew M.
AU - Meng, Joyce
AU - Pickering, Thomas G.
AU - Jin, Zhezhen
AU - Sacco, Ralph L.
AU - Boden-Albala, Bernadette
AU - Homma, Shunichi
AU - Di Tullio, Marco R.
PY - 2008/1
Y1 - 2008/1
N2 - OBJECTIVE: To determine if nocturnal blood pressure (BP) dipping among non-Hispanic blacks is influenced by social support. Non-Hispanic blacks have higher rates of cardiovascular morbidity and mortality from hypertension and are more likely to have ambulatory blood pressure (ABP) that remains high at night (nondipping). METHODS: A total of 68 non-Hispanic black normotensive and 13 untreated hypertensive participants (age 72 ± 10 years, 48% female) free of clinical cardiovascular disease completed 24-hour ABP monitoring and a questionnaire that included a modified version of the CARDIA Study Social Support Scale (CSSS). Nondipping was defined as a decrease of <10% in the ratio between average awake and average asleep systolic BP. Analyses were adjusted for age, gender, and systolic BP. RESULTS: The prevalence of nondipping was 26.8% in subjects in the highest CSSS tertile versus 41.1% in the lowest CSSS tertile (p = .009). On adjusted analysis, CSSS was analyzed as a continuous variable and remained independently and inversely associated with nondipping (odds ratio 0.27, 95% Confidence Interval 0.08-0.94, p = .04). CONCLUSIONS: Social support may be an important predictor of BP dipping at night. These findings suggest that social support may have positive health affects through physiologic (autonomic) pathways.
AB - OBJECTIVE: To determine if nocturnal blood pressure (BP) dipping among non-Hispanic blacks is influenced by social support. Non-Hispanic blacks have higher rates of cardiovascular morbidity and mortality from hypertension and are more likely to have ambulatory blood pressure (ABP) that remains high at night (nondipping). METHODS: A total of 68 non-Hispanic black normotensive and 13 untreated hypertensive participants (age 72 ± 10 years, 48% female) free of clinical cardiovascular disease completed 24-hour ABP monitoring and a questionnaire that included a modified version of the CARDIA Study Social Support Scale (CSSS). Nondipping was defined as a decrease of <10% in the ratio between average awake and average asleep systolic BP. Analyses were adjusted for age, gender, and systolic BP. RESULTS: The prevalence of nondipping was 26.8% in subjects in the highest CSSS tertile versus 41.1% in the lowest CSSS tertile (p = .009). On adjusted analysis, CSSS was analyzed as a continuous variable and remained independently and inversely associated with nondipping (odds ratio 0.27, 95% Confidence Interval 0.08-0.94, p = .04). CONCLUSIONS: Social support may be an important predictor of BP dipping at night. These findings suggest that social support may have positive health affects through physiologic (autonomic) pathways.
KW - African-Americans
KW - Ambulatory blood pressure monitoring
KW - Hypertension
KW - Social support
UR - http://www.scopus.com/inward/record.url?scp=38149081271&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38149081271&partnerID=8YFLogxK
U2 - 10.1097/PSY.0b013e31815aab4e
DO - 10.1097/PSY.0b013e31815aab4e
M3 - Article
C2 - 17991817
AN - SCOPUS:38149081271
SN - 0033-3174
VL - 70
SP - 7
EP - 12
JO - Psychosomatic Medicine
JF - Psychosomatic Medicine
IS - 1
ER -