Revista Española de Cardiología (English Edition) Revista Española de Cardiología (English Edition)
Rev Esp Cardiol. 2012;65:234-40 - Vol. 65 Num.03 DOI: 10.1016/j.rec.2011.09.023

Factors Associated With Knowledge and Control of Arterial Hypertension in the Canary Islands

María C. Rodríguez Pérez a, Antonio Cabrera de León a,b,, Raquel M. Morales Torres c, Santiago Domínguez Coello a, José J. Alemán Sánchez a, Buenaventura Brito Díaz a, Ana González Hernández a, Delia Almeida González d

a Unidad de Investigación, Gerencia de Atención Primaria, Hospital Universitario Ntra. Sra. de La Candelaria, Santa Cruz de Tenerife, Spain
b Área de Medicina Preventiva y Salud Pública, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
c Servicio de Medicina Preventiva, Hospital Universitario Ntra. Sra. de La Candelaria, Santa Cruz de Tenerife, Spain
d Unidad de Inmunología, Hospital Universitario Ntra. Sra. de La Candelaria, Santa Cruz de Tenerife, Spain

Keywords

Hypertension. Heart rate. Alcohol. Obesity. Hypercholesterolemia. Risk factors.

Abstract

Introduction and objectives

To analyze the factors associated with knowledge and control of hypertension in the adult population of the Canary Islands (18-75 years).

Methods

We recruited a random sample of the general population aged ≥18 years. Hypertension was defined as systolic/diastolic blood pressure ≥140/90mmHg or known hypertension (self-declared, or controlled hypertension <140/90mmHg). The bivariate association of known and controlled hypertension with age, sex, anthropometry, serum lipids, medication, and lifestyle was corroborated by adjusting a multivariate logistic model.

Results

We included 6675 participants. The prevalence of hypertension was higher in men (40% vs 31%, P<.001), who also had a lower frequency of treated and controlled hypertension. Female sex (P<.001), age ≥55 years (P<.001), obesity (P<.001), and diabetes (P<.001) were associated with known hypertension. The modifiable factors that, in spite of treatment, increased the risk of poor control of hypertension were alcohol consumption (>30g/day, odds ratio [OR]=2.4, P<.001; >15-≤30g/day, OR=2, P=.009; >5-≤15, g/day, OR=1.83, P=.004), obesity (body mass index ≥30, OR=2, P=.003; >24.9-<30, OR=1.7, P=.024), serum cholesterol >250mg/dL (OR=1.6, P=.006) and elevated heart rate (>80 bpm, OR=1.45, P=.045; >70-≤80 bpm, OR=1.36, P=.038).

Conclusions

The awareness of hypertension increases with frequent use of the health system and with factors associated with known hypertension: female sex, age, underlying health problems. The modifiable factors associated with poor control of known hypertension are alcohol consumption, obesity, elevated heart rate, and hypercholesterolemia.

1885-5857/© 2012 Sociedad Española de Cardiología. Published by Elsevier España, S.L.U. All rights reserved

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