Blood pressure, coffee, tea and tobacco consumption: an epidemiological study in Algiers

Lang, Thierry; Bureau, J. F.; Degoulet, Patrice; Salah, Haitham; Benattar, C.

doi:10.1093/oxfordjournals.eurheartj.a061531

Cited by 40 publications

(27 citation statements)

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“…In most studies, however, the effects of such important confounding factors were not considered thoroughly. In our review of the literature we have found studies that were adjusted for age and obesity, [7][8][9]12,13,19,[23][24][25][26] alcohol consumption, 14,24,25 physical activities 8,9,26 blood chemistry. 14,24,25 Most studies were adjusted for age and obesity.…”

Section: Discussionmentioning

confidence: 99%

“…Different groups have reported that no association existed between smoking habit and blood pressure, [5][6][7][8][9] that blood pressure of smokers was lower than that of non-smokers, [10][11][12][13][14][15][16] or that smoking raised blood pressure. [17][18] In addition, a dose-effect relationship between daily smoking amount and blood pressure was significant in some studies, [13][14][15] while others failed to confirm this finding.…”

Section: Introductionmentioning

confidence: 99%

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An association between smoking habits and blood pressure in normotensive Japanese men

et al. 2002

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We conducted a cross-sectional study to clarify the dose-effect relationship of smoking habits with blood pressure in Japanese men. The subjects were 2781 normotensive male steelworkers ranging in age from 40 to 54 years. They were classified into five categories according to their smoking habits: non-smokers, exsmokers, light smokers, moderate smokers and heavy smokers. Age, body mass index, salt intake, physical activity, drinking habits, and levels of gamma-glutamyl transpeptidase, total serum cholesterol, uric acid, creatinine and plasma glucose were analysed as covariates. The association between smoking habits and blood pressure was evaluated using analysis of covariance. Our results showed that there was no significant differ-

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An association between smoking habits and blood pressure in normotensive Japanese men

et al. 2002

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“…A few crosssectional studies have shown a positive association between habitual coffee consumption and blood pressure. [1][2][3][4][5] In the Busselton study, coffee consumption was directly related to blood pressure change over 6 years of follow-up. 11 In contrast to these reports, several observational studies have failed to identify a pressor effect of habitual coffee consumption.…”

Section: Discussionmentioning

confidence: 99%

“…Some [1][2][3][4][5] but not all 6 -10 cross-sectional studies have identified a positive association between coffee drinking and blood pressure. At least one prospective study 11 has shown that coffee drinking is associated with an increase in blood pressure.…”

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confidence: 99%

The Effect of Chronic Coffee Drinking on Blood Pressure

et al. 1999

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Abstract-We sought to assess the effect of coffee consumption on blood pressure in humans. Our data sources included a MEDLINE search of the literature published before December 1997, bibliography review, and expert consultation. We selected controlled trials in which coffee consumption was the only difference between the intervention and control groups, mean blood pressure change was reported for each group or period, and treatment lasted for Ͼ24 hours. Of 36 studies initially identified, 11 (522 participants) met these inclusion criteria. Information on sample size, study design, participant characteristics (gender, race, age, baseline blood pressure, and antihypertensive medications), and treatment results were abstracted by 3 reviewers using a standardized protocol. Treatment effect of coffee consumption on blood pressure was estimated with the use of a random-effects model. In the 11 trials, median duration was 56 days (range, 14 to 79 days), and median dose of coffee was 5 cups/d. Systolic and diastolic blood pressure increased by 2.4 (range, 1.0 to 3.7) mm Hg and 1.2 (range, 0.4 to 2.1) mm Hg, respectively, with coffee treatment compared with control. Multiple linear regression analysis identified an independent, positive relationship between cups of coffee consumed and subsequent change in systolic blood pressure, independent of age of study participants and study design characteristics. The effect of coffee drinking on systolic and diastolic blood pressure was greater in trials with younger participants. Our findings provide support for a relationship between coffee consumption and higher blood pressure. Trials of coffee cessation of longer duration and in persons with hypertension should be performed. (Hypertension. 1999;33:647-652.)Key Words: blood pressure Ⅲ coffee Ⅲ meta-analysis Ⅲ clinical trials I t has long been suspected that coffee consumption may have adverse effects on the cardiovascular system. Some 1-5 but not all 6 -10 cross-sectional studies have identified a positive association between coffee drinking and blood pressure. At least one prospective study 11 has shown that coffee drinking is associated with an increase in blood pressure. Inferences regarding causality, however, must be made with caution from observational studies because other characteristics associated with coffee drinking may underlie the observed relationships.Experimental studies provide the best opportunity to determine whether a relationship is causal and whether an intervention, such as coffee cessation, has therapeutic relevance. In 1934, Horst et al 12 reported on a clinical trial of coffee drinking in hypertensive patients. Since then, Ͼ36 experimental investigations of the effects of coffee consumption on blood pressure in humans have been published. However, most of these trials have been small and cannot provide definitive results. The effects of coffee drinking on heart rate and the question of whether the health effects of coffee drinking differ according to the method used for brewing have also been controve...

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“…Subsequently, numerous reports have found that smoking reduces blood pressure (Higgins and Kjelsberg 1967;Seltzer 1974;Berglund and Wilhelmsen 1975;Goldbourt and Medalie 1977;Gofin et al 1982;Agner 1983;Savdie et al 1984;Green et al 1986;Rosengren and Wilhelmsen 1987;Green et al 1991;Imamura et al 1996;Okubo et al 2002;Nagahama et al 2004;Okubo et al 2004;Wang et al 2006). In contrast, several other reports have found that smoking raises blood pressure (Elliott and Simpson 1980;Dyer et al 1982;Bolinder and de Faire 1998), while still others failed to confirm any effect on blood pressure (Arkwright et al 1982;Criqui et al 1982;Lang et al 1983;Simons et al 1984). Few large epidemiological studies on the effects of smoking on blood pressure have considered the confounding effects of such factors as age, obesity, blood chemistry, lifestyle or working conditions.…”

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confidence: 99%

Smoking as an Independent Risk Factor for Hypertension: A 14-Year Longitudinal Study in Male Japanese Workers

Dochi

Sakata

Oishi

et al. 2009

Tohoku J. Exp. Med.

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Blood pressure, coffee, tea and tobacco consumption: an epidemiological study in Algiers

Cited by 40 publications

References 0 publications

An association between smoking habits and blood pressure in normotensive Japanese men

An association between smoking habits and blood pressure in normotensive Japanese men

The Effect of Chronic Coffee Drinking on Blood Pressure

Smoking as an Independent Risk Factor for Hypertension: A 14-Year Longitudinal Study in Male Japanese Workers

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