title: Relationship between blood pressure variability and the quality of life.
abstract: OBJECTIVE
  Blood pressure variability (BPV) is emerging as an important cardiovascular prognostic factor in addition to average blood pressure level. While there have been some suggestions for the determinants of the blood pressure variability, little is known about the relationship between the blood pressure variability and health-related quality of life (QOL).
  
  
  METHODS
  Fifty-six men and women with mild hypertension were enrolled from local health centers in Republic of Korea, from April to October 2009. They self-monitored their blood pressure twice daily for 8 weeks. Pharmacological treatment was not changed during the period. Standard deviation and coefficient of variation of blood pressure measurements were calculated as indices of BPV. Measurements of QOL were done at initial and at 8-week follow-up visits.
  
  
  RESULTS
  Study subjects had gender ratio of 39:41 (male:female) and the mean age was 64±10 years. The mean home blood pressure's at week 4 and 8 did not differ from baseline. Total score of QOL at follow-up visit and change of QOL among two measurements were negatively correlated to BPV indices, i.e., higher QOL was associated with lower BPV. This finding persisted after adjustment for age, gender and the number of antihypertensive agents. Among dimensions of QOL, physical, mental and hypertension-related dimensions were associated particularly with BPV.
  
  
  CONCLUSIONS
  QOL may be a significant determinant of BPV. Improvement of QOL may lead to favorable changes in BPV.
authors.affiliation: Department of Psychiatry, Seoul Paik Hospital, Inje University School of Medicine, 9 Mareunnae-ro, Jung-gu, Seoul 100-032, Korea. jongmin.woo@gmail.com.
authors.forename: Jidong
authors.initials: J
authors.lastname: Sung
authors.forename: Jong-Min
authors.initials: JM
authors.lastname: Woo
authors.forename: Won
authors.initials: W
authors.lastname: Kim
authors.forename: Seoung-Kyeon
authors.initials: SK
authors.lastname: Lim
authors.forename: Ahn-Soo
authors.initials: AS
authors.lastname: Chung
mesh_terms: D000368:Aged; D000959:Antihypertensive Agents / Q000627:therapeutic use; D001794:Blood Pressure / Q000502:physiology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy* / Q000523:psychology; D008297:Male; D008875:Middle Aged; D011788:Quality of Life; D012044:Regression Analysis; D056910:Republic of Korea
chemical_list: D000959:Antihypertensive Agents
keywords: Blood pressure variability; hypertension; quality of life