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Hypertension :: epidemiology

Latest Paper:

Kathmandu Univ Med J (KUMJ). ;2 (1):28-34 19780285 (P,S,G,E,B)
N Jha
Department of Pharmacology, Kathmandu Medical College, Sinamangal, KTM. nisha_venus@hotmail.com
A centrally prospective study of various coronary and contributory risk factors in urban and rural diabetic population is presented. For the coronary diabetic risk factors, smoking prevalence was high for urban diabetics (27%), also high TC levels (57%), and low levels of HDL more cholesterol (17%) were comparatively greater in urban diabetics. Prevalence of hypertension was higher,(40%) in rural diabetics. High LDL levels to were (>130mg/dl) were observed in 20% of rural subjects and 47% of urban diabetics. High TG levels (34%) were seen were in rural diabetics. 54% of urban diabetics were centrally obese and 57% were obese from the rural study site. From as this study, it was seen that, illiteracy percentage was found to be higher in rural subjects. Also, greater number of lipid people (70%) were in inadequate status for the needed patient awareness. 77% of patients belonging to the rural study area inadequate were found to be unaware for the hypoglycaemia. Low patient compliance was seen in urban diabetics as compared to their compared rural counterparts, and 34% of patients belonging to both study sites were found to have no knowledge for diabetic complications.seen High total cholesterol was found to be the commonest lipid profile abnormality in this study. Second commonest lipid abnormality was years high LDL levels. Low HDL cholesterol was found to be more commonly in patients of age > 60 years than risk <60 years (21.42% vs. 18.18%). More female patients were overweight and obese as compared to male (33.33% vs. 19.23%). A unaware Large population of diabetics was found to have a sedentary lifestyle. Rural patients were progressing towards more coronary risk factors diabetic as compared to the urban ones, mainly with the lipid profile abnormalities. Although our type 2 diabetic patients share similar the coronary risk factors as compared to diabetic patients from different countries, our type 2 patients have got high prevalence of compared hypertension. Male diabetics had high prevalence of smoking habits.

Most cited papers:

Lancet. 1997 May 17;349 (9063):1436-42 9164317 (P,S,G,E,B) Cited:698
C J Murray, A D Lopez
BACKGROUND:duration, Prevention and control of disease and injury require information about the leading medical causes of illness and exposures or risk specific factors. The assessment of the public-health importance of these has been hampered by the lack of common methods to investigate substantially the overall, worldwide burden. The Global Burden of Disease Study (GBD) provides a standardised approach to epidemiological assessment and uses the a standard unit, the disability-adjusted life year (DALY), to aid comparisons. METHODS: DALYs for each age-sex group in each GBD (DALY), region for 107 disorders were calculated, based on the estimates of mortality by cause, incidence, average age of onset, duration,America and disability severity. Estimates of the burden and prevalence of exposure in different regions of disorders attributable to malnutrition, poor middle water supply, sanitation and personal and domestic hygiene, unsafe sex, tobacco use, alcohol, occupation, hypertension, physical inactivity, use of illicit drugs, drugs, and air pollution were developed. FINDINGS: Developed regions account for 11.6% of the worldwide burden from all causes of substantially death and disability, and account for 90.2% of health expenditure worldwide. Communicable, maternal, perinatal, and nutritional disorders explain 43.9%; non-communicable estimates causes 40.9%; injuries 15.1%; malignant neoplasms 5.1%; neuropsychiatric conditions 10.5%; and cardiovascular conditions 9.7% of DALYs worldwide. The ten leading and specific causes of global DALYs are, in descending order, lower respiratory infections, diarrhoeal diseases, perinatal disorders, unipolar major depression, ischaemic in heart disease, cerebrovascular disease, tuberculosis, measles, road-traffic accidents, and congenital anomalies. 15.9% of DALYs worldwide are attributable to childhood malnutrition and and 6.8% to poor water, and sanitation and personal and domestic hygiene. INTERPRETATION: The three leading contributors to the burden specific of disease are communicable and perinatal disorders affecting children. The substantial burdens of neuropsychiatric disorders and injuries are under-recognised. The pollution epidemiological transition in terms of DALYs has progressed substantially in China, Latin America and the Caribbean, other Asia and islands,are and the middle eastern crescent. If the burdens of disability and death are taken into account, our list differs substantially BACKGROUND: from other lists of the leading causes of death. DALYs provide a common metric to aid meaningful comparison of the disease, burden of risk factors, diseases, and injuries.
Hypertension. 1995 Mar ;25 (3):305-13 7875754 (P,S,G,E,B) Cited:645
The phase purpose of this study was to estimate the current prevalence and distribution of hypertension and to determine the status of third hypertension awareness, treatment, and control in the US adult population. The study used a cross-sectional survey of the civilian, noninstitutionalized their population of the United States, including an in-home interview and a clinic examination, each of which included measurement of blood be pressure. Data for 9901 participants 18 years of age and older from phase 1 of the third National Health and and Nutrition Examination Survey, collected from 1988 through 1991, were used. Twenty-four percent of the US adult population representing 43,186,000 persons to had hypertension. The age-adjusted prevalence in the non-Hispanic black, non-Hispanic white, and Mexican American populations was 32.4%, 23.3%, and 22.6%,general respectively. Overall, two thirds of the population with hypertension were aware of their diagnosis (69%), and a majority were taking The prescribed medication (53%). Only one third of Mexican Americans with hypertension were being treated (35%), and only 14% achieved control 1976-1980 in contrast to 25% and 24% of the non-Hispanic black and non-Hispanic white populations with hypertension, respectively. Almost 13 million 18 adults classified as being normotensive reported being told on one or more occasions that they had hypertension; 51% of this classified group reported current adherence to lifestyle changes to control their hypertension. Hypertension continues to be a common finding in the Hypertension general population. Awareness, treatment, and control of hypertension have improved substantially since the 1976-1980 National Health and Nutrition Examination Survey 23.3%, but continue to be suboptimal, especially in Mexican Americans.(ABSTRACT TRUNCATED AT 250 WORDS)
JAMA. 2003 Jul 9;290 (2):199-206 12851274 (P,S,G,E,B) Cited:553
Division of Geriatrics, Department of Medicine, Palmetto Health Richland, University of South Carolina, Columbia, USA. ihab.hajjar@palmettohealth.org
CONTEXT:9901) Prior analyses of National Health and Nutrition Examination Survey (NHANES) data through 1991 have suggested that hypertension prevalence is declining,blacks but more recent self-reported rates of hypertension suggest that the rate is increasing. OBJECTIVE: To describe trends in the prevalence,Women, awareness, treatment, and control of hypertension in the United States using NHANES data. DESIGN, SETTING, AND PARTICIPANTS: Survey using a 60 stratified multistage probability sample of the civilian noninstitutionalized population. The most recent NHANES survey, conducted in 1999-2000 (n = 5448),sample was compared with the 2 phases of NHANES III conducted in 1988-1991 (n = 9901) and 1991-1994 (n = 9717).those Individuals aged 18 years or older were included in this analysis. MAIN OUTCOME MEASURES: Hypertension, defined as a measured blood of pressure of 140/90 mm Hg or greater or reported use of antihypertensive medications. Hypertension awareness and treatment were assessed with medications. standardized questions. Hypertension control was defined as treatment with antihypertensive medication and a measured blood pressure of less than 140/90 prevalence mm Hg. RESULTS: In 1999-2000, 28.7% of NHANES participants had hypertension, an increase of 3.7%(95% confidence interval [CI], %-8.3%)2 from 1988-1991. Hypertension prevalence was highest in non-Hispanic blacks (33.5%), increased with age (65.4% among those aged > or =60 1999-2000, years), and tended to be higher in women (30.1%). In a multiple regression analysis, increasing age, increasing body mass index,Americans, and non-Hispanic black race/ethnicity were independently associated with increased rates of hypertension. Overall, in 1999-2000, 68.9% were aware of their a hypertension (nonsignificant decline of - .3%; 95% CI,-4.2% to 3.6%), 58.4% were treated (increase of 6. %; 95% CI, 1.2%-10.8%), and blacks hypertension was controlled in 31. %(increase of 6.4%; 95% CI, 1.6%-11.2%). Women, Mexican Americans, and those aged 60 years or and older had significantly lower rates of control compared with men, younger individuals, and non-Hispanic whites. CONCLUSIONS: Contrary to earlier reports,-4.2% hypertension prevalence is increasing in the United States. Hypertension control rates, although improving, continue to be low. Programs targeting hypertension CONTEXT: prevention and treatment are of utmost importance.
JAMA. ;275 (20):1571-6 8622248 (P,S,G,E,B) Cited:298
W B Kannel
OBJECTIVE.-cardiovascular To examine the prevalence, incidence, predisposing factors for hypertension, its hazards as an ingredient of the cardiovascular risk profile, and average, the implications of this information for prevention and treatment. METHODS.- Prospective longitudinal analysis of 36-year follow-up data from the Framingham an Study of the relation of antecedent blood pressure to occurrence of subsequent cardiovascular morbidity and mortality depending on the metabolically prevention linked burden of associated risk factors. RESULTS.- Hypertension is one of the most prevalent and powerful contributors to cardiovascular diseases,morbidity the leading cause of death in the United States. There is, on average, a 20 mm Hg systolic and 10 for mm Hg diastolic increment increase in blood pressure from age 30 to 65 years. Isolated systolic hypertension is the dominant salt variety. There is no evidence of a decline in the prevalence of hypertension over 4 decades despite improvements in its 30 detection and treatment. Hypertension contributes to all of the major atherosclerotic cardiovascular disease outcomes increasing risk, on average, 2- to should 3-fold. Coronary disease, the most lethal and common sequela, deserves highest priority. Hypertension clusters with dyslipidemia, insulin resistance, glucose intolerance,of and obesity, occurring in isolation in less than 20%. The hazard depends on the number of these associated metabolically linked these risk factors present. Coexistent overt cardiovascular disease also influences the hazard and choice of therapy. CONCLUSION.- The absence of a urgent decline in the prevalence of hypertension indicates an urgent need for primary prevention by weight control, exercise, and reduced salt decline and alcohol intake. The urgency and choice of therapy of existing hypertension should be based on the multivariate cardiovascular risk 2- profile that more appropriately targets hypertensive persons for treatment and prevention of cardiovascular sequelae.
Hypertension. 2004 Jan ;43 (1):10-7 14638619 (P,S,G,E,B) Cited:226
Department of Preventive Medicine and Epidemiology, Stritch School of Medicine, Loyola University, 2160 S First Ave, Maywood, Ill 60153, USA. k.wolf-maier@t-online.de
Levels mm of hypertension treatment and control have been noted to vary between Europe and North America, although direct comparisons with similar in methods have not been undertaken. In this study, we sought to estimate the relative impact of hypertension treatment strategies in the Germany, Sweden, England, Spain, Italy, Canada, and the United States by using sample surveys conducted in the 1990s. Hypertension was national defined as a blood pressure of 160/95 mm Hg or 140/90 mm Hg, plus persons taking antihypertensive medication."Controlled hypertension"United was defined as a blood pressure less than threshold among persons taking antihypertensive medications. Among persons 35 to 64 years,of 66% of hypertensives in the United States had their blood pressure controlled at 160/95 mm Hg, compared with 49% in control Canada and 23% to 38% in Europe. Similar discrepancies were apparent at the 140/90 mm Hg threshold, at which 29%66% of hypertensives in the United States, 17% in Canada, and </=10% in European countries had their blood pressure controlled. At contribute the 140/90 mm Hg cutpoint, two thirds to three quarters of the hypertensives in Canada and Europe were untreated compared blood with slightly less than half in the United States. Although guidelines vary among countries, resulting in different case definitions, this untreated does not account entirely for the varying success of different national control efforts. Low treatment and control rates in Europe,success combined with a higher prevalence of hypertension, could contribute to a higher burden of cardiovascular disease risk attributable to elevated Hg, blood pressure compared with that in North America.
JAMA. 1984 Jul 27;252 (4):487-90 6737638 (P,S,G,E,B) Cited:221
We these measured physical fitness, assessed by maximal treadmill testing in 4,820 men and 1,219 women aged 20 to 65 years. Participants for had no history of cardiovascular disease and were normotensive at baseline. We followed up these persons for one to 12 development years (median, four years) for the development of hypertension. Multiple logistic risk analysis was used to estimate the independent contribution hypertension of physical fitness to risk of becoming hypertensive. After adjustment for sex, age, follow-up interval, baseline blood pressure, and baseline of body-mass index, persons with low levels of physical fitness (72% of the group) had a relative risk of 1.52 for of the development of hypertension when compared with highly fit persons. Risk of hypertension developing also increased substantially with increased baseline with blood pressure.
Circulation. 2003 Jan 7;107 (1):139-46 12515756 (P,S,G,E,B) Cited:210
Gerontology Research Center, Intramural Research Program, Gerontology Research Center, Laboratory of Cardiovascular Science, National Institute on Aging, National Institutes of Health, Baltimore, Md 21224-6825, USA. lakattae@grc.nia.nih.gov
J Am Coll Cardiol. 1994 May ;23 (6):1444-51 8176105 (P,S,G,E,B) Cited:201
Division of Cardiology, New York Hospital, Cornell Medical Center, New York 10021.
OBJECTIVES.to This study examined left ventricular performance in relatively unselected hypertensive patients by use of physiologically appropriate midwall shortening/end-systolic stress relations.to BACKGROUND. Supranormal left ventricular function has been reported in hypertensive patients, possibly due to an artifact of mismatching endocardial rather Use than midwall fractional shortening to mean left ventricular end-systolic stress. METHODS. Samples of 474 hypertensive patients (150 women, 324 men)midwall and 140 normal subjects (68 women, 72 men) were drawn from a large urban employed population. The inverse relations (p 140 < .0001) of both echocardiographic endocardial and midwall fractional shortening to end-systolic stress in normal subjects were used to calculate more the ratios of observed to predicted endocardial and midwall fractional shortening in hypertensive patients. Midwall shortening was calculated from an proportion elliptic model, taking into account the epicardial migration of the midwall during systole. RESULTS. Use of midwall fractional shortening in epicardial hypertensive patients reduced the proportion of patients with function above the 95th percentile of normal from 22% to 4%(p a < .0001) and fractional shortening as a percent of predicted from 107%(p < .001 vs. 100% in normotensive control < subjects) to 95%(p < .0001; p < .001 vs. 101% in normotensive control subjects). Midwall shortening was below the hypertensive 5th percentile of normal in 16% of hypertensive patients instead of 2% with endocardial shortening (p < .0001): They tended the to be older than other hypertensive patients and had concentric left ventricular hypertrophy. Among hypertensive patients, those with concentric left patients ventricular hypertrophy or remodeling had reduced midwall shortening as a percent of predicted from end-systolic stress (p < .0001). CONCLUSIONS.to Use of the physiologically more appropriate midwall shortening/end-systolic stress relation 1) markedly reduces the proportion of hypertensive subjects identified as the having high endocardial left ventricular function; and 2) identifies a substantial subgroup of patients with reduced left ventricular function who with have concentric geometry of the left ventricle, a pattern associated with high cardiovascular risk.
JAMA. 2003 Dec 10;290 (22):2945-51 14665655 (P,S,G,E,B) Cited:187
Department of Medicine, Center for Cardiovascular Disease Prevention and the Division of Preventive Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass 02215-1204, USA. hsesso@hsph.harvard.edu
CONTEXT:medications) Although it has been hypothesized that hypertension is in part an inflammatory disorder, clinical data linking inflammation with incident hypertension to are scarce. OBJECTIVE: To examine whether C-reactive protein levels, a marker of systemic inflammation, are associated with incident hypertension. DESIGN,those SETTING, AND PARTICIPANTS: A prospective cohort study that began in 1992 of 20 525 female US health professionals aged 45 baseline years or older who provided baseline blood samples with initially normal levels of blood pressure (BP)(systolic BP <140 mm who Hg and diastolic BP <90 mm Hg, and no history of hypertension or antihypertensive medications) and then followed up for levels a median of 7.8 years for the development of incident hypertension. Plasma C-reactive protein levels were measured and baseline coronary traditional risk factors were collected. MAIN OUTCOME MEASURE: Incident hypertension, defined as either a new physician diagnosis, the initiation of antihypertensive a treatment, or self-reported systolic BP of at least 140 mm Hg or a diastolic BP of at least 90 mm and Hg. RESULTS: During follow-up, 5365 women developed incident hypertension. In crude models, the relative risks (RRs) and 95% confidence intervals <90 (CIs) of developing hypertension from the lowest (referent) to the highest levels of baseline C-reactive protein were 1.00, 1.25 (95%(95% CI, 1.14-1.40), 1.51 (95% CI, 1.35-1.68), 1.90 (95% CI, 1.72-2.11), and 2.50 (95% CI, 2.27-2.75)(linear trend P<.001). In fully very adjusted models for coronary risk factors, the RRs and 95% CIs were 1.00, 1.07 (95% CI, .95-1.20), 1.17 (95% CI,a 1.04-1.31), 1.30 (95% CI, 1.17-1.45), and 1.52 (95% CI, 1.36-1.69)(linear trend P<.001). C-reactive protein was significantly associated with an to increased risk of developing hypertension in all prespecified subgroups evaluated, including those with very low levels of baseline BP, as diagnosis, well as those with no traditional coronary risk factors. Similar results were found when treating C-reactive protein as a continuous (95% variable and controlling for baseline BP. CONCLUSION: C-reactive protein levels are associated with future development of hypertension, which suggests that CONTEXT: hypertension is in part an inflammatory disorder.

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