title: Effects of body mass index, plasma glucose and cholesterol levels on isolated systolic hypertension.
abstract: Despite the high cardiovascular risk of diabetic patients, there is a paucity of data on isolated systolic hypertension (ISH) in diabetic patients. In this cross-sectional study, we examined the risk of ISH and its associated factors in Chinese type 2 diabetic patients. Isolated systolic hypertension was defined as systolic blood pressure (SBP) > or =140 mm Hg and diastolic blood pressure (DBP) <90 mm Hg. The mean value of two BP measurements taken 1 min apart was used. There were 1048 type 2 diabetic patients recruited from the Prince of Wales Hospital Diabetes Clinic. Another 1043 age- and sex-matched non-diabetic subjects were recruited from the community. The mean age of the 2091 subjects was 40.6 +/- 7.6 years (median: 40 years, range: 16-69 years). Diabetic patients had an increased risk of ISH compared to non-diabetic subjects (7.6% vs. 3.4%, p < 0.001) with an odd ratio of 2.38. On multivariate analysis, age, body mass index, total cholesterol and duration of diabetes in diabetic subjects while age and waist-hip ratio (WHR) in non-diabetic subjects were independently associated with ISH. In conclusion, Chinese type 2 diabetic patients had increased risk to develop ISH than non-diabetic subjects. Age, obesity, lipid and duration of diabetes were independent associated with ISH. These findings suggest that control of body weight and metabolic profile might have beneficial effects on ISH.
authors.affiliation: Department of Medicine, Alice Ho Nethersole Hospital, Tai Po, Hong Kong. gtc_ko@hotmail.com
authors.forename: Gary T C
authors.initials: GT
authors.lastname: Ko
authors.forename: Clive S
authors.initials: CS
authors.lastname: Cockram
authors.forename: Chun-Chung
authors.initials: CC
authors.lastname: Chow
authors.forename: Wing-Bun
authors.initials: WB
authors.lastname: Chan
authors.forename: Wing-Yee
authors.initials: WY
authors.lastname: So
authors.forename: Ronald
authors.initials: R
authors.lastname: Ma
authors.forename: Riza
authors.initials: R
authors.lastname: Osaki
authors.forename: Juliana C N
authors.initials: JC
authors.lastname: Chan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015415:Biomarkers / Q000097:blood; D001786:Blood Glucose / Q000378:metabolism*; D001794:Blood Pressure / Q000502:physiology*; D015992:Body Mass Index; D002784:Cholesterol / Q000097:blood*; D003924:Diabetes Mellitus, Type 2 / Q000097:blood / Q000150:complications / Q000503:physiopathology; D018450:Disease Progression; D005260:Female; D005500:Follow-Up Studies; D006723:Hong Kong / Q000453:epidemiology; D006801:Humans; D006973:Hypertension / Q000097:blood / Q000453:epidemiology / Q000209:etiology* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000097:blood / Q000150:complications / Q000503:physiopathology; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors; D012720:Severity of Illness Index; D013599:Systole
chemical_list: D015415:Biomarkers; D001786:Blood Glucose; D002784:Cholesterol