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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-66343

Chmiel, C; Wang, M; Senn, O; Del Prete, V; Zoller, M; Rosemann, T; Steurer-Stey, C (2012). Uncontrolled arterial hypertension in primary care – patient characteristics and associated factors. Swiss Medical Weekly, (142):w13693.

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Most patients with arterial hypertension are treated in primary care. The objective is to assess characteristics of patients with uncontrolled arterial hypertension and its associated determinants in Swiss primary care.
Data on 122 adult patients with uncontrolled hypertension (mm Hg >140 systolic and/or >90 diastolic) was collected from the baseline data of the on-going randomised controlled "CoCo" trial: Colour-coded Blood Pressure Control. Patient and general practitioner characteristics were analysed to investigate the relationship between BP and patient characteristics.
From October 2009 to March 2011 30 general practitioners recruited 122 patients; median age 64 years (IQR 54.8-72), 50% male, median BMI 28.3 kg/m2 (IQR 25.3-31.7), 21.5% smokers. 65.6% performed home blood pressure measurement, 88.5% received pharmacological treatment, 41.8% mono-therapy. Most frequent dual drug combinations: diuretics/angiotensin-receptor-blockers (33.3%), angiotensin-converting-enzyme-inhibitors/beta blockers (both 28.1%). BMI, smoking and age were independent predictors for elevated systolic blood pressure when controlled for gender, home blood pressure measurement, education, pulse rate and number of antihypertensive substances. We found a significant non-linear association between systolic blood pressure and number of antihypertensive substances. Age and any amount of antihypertensive substances were independently and inversely correlated with diastolic blood pressure. The findings did not change when additionally controlled for general practitioner clustering effect.
Smoking and high BMI are strong and independent factors associated with higher blood pressure levels in patients with uncontrolled arterial hypertension. A high rate of monotherapy and a decrease in the incremental gain on blood pressure control when more antihypertensive agents are used highlight the importance of adequate pharmacological treatment as well as risk factor control.


4 citations in Web of Science®
7 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of General Practice
Dewey Decimal Classification:610 Medicine & health
Deposited On:09 Nov 2012 11:30
Last Modified:05 Apr 2016 16:03
Publisher:EMH Swiss Medical Publishers
Publisher DOI:10.4414/smw.2012.13693
Official URL:http://www.smw.ch/content/smw-2012-13693/
PubMed ID:23136051

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