Medical and Health Science Project Topics

Relationship Between Weight and Blood Pressure of Patients With High Bloo Pressure.

Relationship Between Weight and Blood Pressure of Patients With High Bloo Pressure.

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Chapter One of Relationship Between Weight and Blood Pressure of Patients With High Bloo Pressure.

 

Background to the Study

Hypertension, defined as a systolic blood pressure in excess of 140mmHg or a diastolic pressure higher than 90mmHg, is also a globally increasing public health concern. Roughly 1 billion individuals worldwide are estimated to exhibit clinically significant elevated blood pressure with about 50million of those residing in the United States. Hypertension, in turn is associated with increased risk for CVD, Stroke, renal disease and all cause mortality. The JNC VII report defines stage 1 hypertension as blood pressure levels between. 140 and 159mmHg systolic and 90 and 99 diastolic. Additionally, the report establishes a category of prehypertension (Systolic blood pressure between 120 and 140mmHg or diastolic between 80 and 89mmHg). These two blood pressure classification are deemed to be appropriate primary targets for lifestyle modification interventions, including weight loss. Higher levels of blood pressure or stage 1 hypertension that is maintained over a long period, should be addressed primarily with medications or other physician directed treatments.

There is a positive relationship between overweight or obesity and blood pressure and risk for hypertension. As early as the 1920s, a significant association between body weight and blood pressure was noted in men (Symonds, 1923; Dublin, 1925). In the intervening years, epidemiological studies have routinely confirmed this association. The Framingham study found that hypertension is about twice as prevalent in the obese as the non obese of both sexes (Hubert et al., 1983). Stammer and colleagues (1978) noted an odds ratio for hypertension of obese relative ti non obese (BMI of less than 25) of 2.43 for younger adults and 1/54 for older ones. The Nurses Health study (Manson et al., 1995) compared women with BMIs of less than 22 with those above 29 and found a 2- to 6- fold greater prevalence of hypertension among the obese.

More recent data from the Framingham study further support this relationship. Divided into BMI quintiles. Framingham participants of both sexes demonstrated increasing blood pressure with increased over weight. In this instance those in the highest BMI quintile exhibited 16mmHg higher systolic a.d 9mmHg higher diastolic blood pressures than those in the lowest quintile. For systolic blood pressure this translated into an increase of 4mmHg for each 4.5kg of increased weight (Higgins et al., 1998) noted a 5-fold greater incidence of hypertension in individuals with BMIs of more than 30 relative to those less than 20 for both sexes.

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Problem Statement

The public health burden of hypertension is certainly enormous. Although perhaps impossible to tease out because of association with other risk factors, including overweight, hypertension is clearly a major contributor to most categories of chronic disease (Havas et al., 2004). Hence there us need to evaluate the relationship between weight and blood pressure of patients with high blood pressure.

 

Objectives of the Study

The major objective of the study is the relationship between weight and blood pressure of patients with high blood pressure.

 

Research Questions

(1) what is High blood Pressure?

(2) what are the factors contributing to high blood pressure?

(3) what is prevalence of high blood pressure in the population?

(4) what is the relationship between high blood Pressure and body weight?

 

Significance of the study

The research gives a clear insight into the relationship between weight and blood pressure of patients with high blood pressure. The findings of this research will help the concerned health sector in validating the effect of body weight on blood pressure.

 

Scope of the study

The research focuses on the relationship between weight a d blood pressure of patients with high blood pressure.

 

References Symonds B. Blood pressure of healthy men and women. 1923; 8: 232-236.

Dublin LI. Report of the joint committee on Mortality of the Association of Life insurance Medical Directors. Network: Actuarial society of Americans can, 1925.

Hubert HB, Feinleib M, Mc Namara PM, Castelli WP. Obesity as an independent risk factor for cardiovascular disease: a 26-year follow- up of participants in the Framingham Heart study. Circulation 1983; 67:969-977.

Stammer R, Stammer J, Riedlinger WF, Algebra G, Roberts R. Weight a.d Blood pressure. Findings in hypertension screening of I million Americans. JAMA. 1978; 240: 1607-1609.

Manson JE, Willette WC, Stampler MJi colditz GA, Hunter DJ, Susan E. Hankinson SE,Hennekens CH, Speizer FE. Body weight and mortality among women. N English J. Med. 1995; 333: 677-685.

Higgins M, Kamel W, Garrison R, Pinksy J, Stokes J. Hazards of Obesity- the Framingham experience. Acta Med Scandal. 1998; 723: 23-26.

Rankin SW,Chen Y, Leiter L, Liu L, Reeder BA. Canadian Heart Healthy Surveys Research Group. Risk factor correlates of body mass index, CMAJ. 1997; 157:526.

Havas S, Roccella EJ, Lenfant C. Reducing the public Health. Burden from Elevated Blood Pressure levels in the United States by lowering intake of Dietary Spdium . Am J Public Health. 2004; 94: 19-22.

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