Copyright © 1983 by the European Society of Cardiology.
© 1983, by the European Society of Cardiology
Blood pressure, coffee, tea and tobacco consumption: an epidemiological study in Algiers
*Service d'Informatique Médicale and INSERM UI94, Hopital de la Pitié 91 Bd de l'hôpital, 75634 Paris Cedex 13, France
Service de Nephrotogie, Hopital Issad Hassani Béni Messous, Algiers Algeria
Service de Biochimie, Hopital A. Béclére 157rue de la Porte de Trivaux, 92140 Clamart, France
Received 22 October 1982; revised 19 January 1983; .
Requests for reprints: Dr Patrice Degoulet, Service d'Informatique Medicale, 91 Bd de l'hôpital, 75013 Pans, France.
Abstract
The connections and possible interactions between coffee consumption, tobacco consumption, blood pressure (BP), age, and body mass index (BMI) were analysed in a cross-sectional epidemiologic study of 1098 men and 393 women of the Algiers district. Systolic blood pressure (SBP) was negatively and significatively correlated with cigarette smoking. Diastolic blood pressure (DBP) was positively and significantly associated with coffee consumption (P<0.001) and negatively and significantly with cigarette consumption (P<0.001). These associations remained significant after multivariate analysis including sex, age, BMI, physical exertion at work, athletic activity, rural versus urban residency, tobacco, tea and coffee consumption. Coffee consumption and cigarette smoking were positively associated (P<0.001). In the subgroup of men, the association between coffee consumption and DBP was significant only after adjustment for cigarette smoking. In the subgroup of women, containing a low percentage of smokers, this association was significant without such adjustment. This finding suggests that cigarette consumption might partly mask the association between coffee consumption and BP. The contradictory interactions observed between BP, cigarette consumption and coffee consumption might help to explain the conflicting reports concerning the association between coffee consumption and ischemic heart disease.
Key Words: Blood pressure • age • body mass index • coffee and tobacco consumption • physical exertion
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