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Med J Aust. 2003 Aug 4;179(3):135-9.

Untreated hypertension among Australian adults: the 1999-2000 Australian Diabetes, Obesity and Lifestyle Study (AusDiab).

Author information

1
Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC. Esther.Briganti@med.monash.edu.au

Abstract

OBJECTIVE:

To measure the prevalence of untreated hypertension in Australian adults, and examine the associations with clinical and lifestyle factors.

DESIGN:

AusDiab, a cross-sectional survey conducted between May 1999 and December 2000, involved participants from 42 randomly selected census districts throughout Australia.

PARTICIPANTS:

Of 20 347 eligible people aged >or= 25 years who completed a household interview, 11 247 attended a physical examination (response rate, 55%).

MAIN OUTCOME MEASURES:

The prevalence of hypertension (blood pressure >or= 140/90 mmHg or self-reported use of antihypertensive drugs) and its treatment; associations of clinical and lifestyle factors with the treatment of hypertension; and adequacy of treatment for primary and secondary prevention of cardiovascular disease.

RESULTS:

The prevalence of hypertension was 28.6 per 100 (95% CI, 25.0-32.3), and the prevalence of untreated hypertension was 15.2 per 100 (95% CI, 13.2-17.2). Of those with untreated hypertension, 80.8% (95% CI, 74.7%-85.0%) had had a blood pressure check within the preceding 12 months. At least one modifiable lifestyle factor was present in 71.7% (95% CI, 68.5%-74.8%) of participants with untreated hypertension. Although lower risk clinical characteristics of younger age and lack of hyperlipidaemia were independently associated with untreated hypertension, 53.5% warranted treatment based on current cardiovascular disease prevention guidelines and multivariable absolute risk assessment.

CONCLUSIONS:

Considerable scope remains for reducing the burden of cardiovascular disease through lifestyle modification and rational treatment of hypertension.

PMID:
12885281
[Indexed for MEDLINE]

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