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[Background] \normal to high normal blood pressure and Ⅰ ~ Ⅲ grade hypertension, according to the merger of cardiovascular disease risk factors, target organ damage and at the same time suffering from other diseases, hypertension patients were divided into four layers (group) that is low risk, medium risk, high risk and very high risk. Hypertension in addition to the direct harm, but the main cause damage to the heart, brain, kidney and other target organs, is one of the largest public health problem worldwide. The influencing factors of hypertension is a wide range of individual physiological factors, genetic factors and behavioral lifestyle factors were correlated with the incidence of hypertension. Compared with the national Guangdong origin hypertension low-incidence areas, but because of the reform and opening up earlier, improved living standards faster, lifestyle and behavior change are conducive to high blood pressure, Guangdong prevalence of hypertension increased high-speed than the national average. Baiyun District in Guangzhou urban fringe, urban and rural two communities come into contact with each other, mixing and blending of area, population and social structure characterized transition is also very obvious. Not only mixed urban residents and rural residents, but also there is the local resident population in the field of mobile population heterogeneity contrast, various job types, different lifestyles, different beliefs, different values, different needs and different psychological and cultural qualities of the crowd each other to form a strong contrast with the coexistence. Baiyun District population originally for farmers, but because the land was conscripted, mostly farmers change their previous way of life, eating habits, physical activity, psychological status, economic improvement after the re-employment habits have taken place in the larger change, and how these changes will affect the prevalence of hypertension. With the development of urbanization, this particular urban and rural joining the crowd more and more attention should be paid to the health status of these types of people. Therefore, this study through the epidemiological investigation of Baiyun District, urban and rural areas combined with the Ministry of hypertension in rural areas, to explore the Baiyun District residents hypertension pathogenic factors provide some interesting clues, and provide the scientific basis for hypertension prevention and control. Research purposes Guangzhou urban fringe heat of hypertension monitoring and epidemiological investigation of Baiyun District, urban fringe residents hypertension risk factors, understand trends, and distribution characteristics and hypertension main factors for that type of hypertension prevention and control measures to develop and implement a reliable scientific basis. [Object method] 1. Research methods: A cross-sectional study method used in the survey questionnaire and anthropometric methods to collect the survey data, the pre-survey before specific investigation. Sample size: The study surveyed 684 16-69 year-old resident of the Baiyun District. Object of study and sampling methods: using multi-stage random sampling to determine the survey, randomly selected from two streets and a township in accordance with the classification of the National Bureau of Statistics, the midpoint of the Baiyun District, the region's 14 streets and four towns; extraction a village groups (villages each street / township randomly selected four neighborhood / village, the neighborhood committees in each pumping / administrative villages, randomly selected residents group (≥ 40 villagers / residents) / KISH table method), each drawn residents group / village groups (villages) required randomly selected 57 residents as a respondent households, and the last in the survey households to determine a household households aged 15-69 residents survey. Survey methods and survey: questionnaire using the Guangzhou CDC slow non-Division prepared Guangzhou Adult chronic disease risk factor surveillance questionnaires, face-to-face survey questionnaire by trained professionals, physical measurements were measured by trained professionals and record survey physical indicators, physical measurements, including height, weight, waist circumference, hip circumference, and blood pressure measurement. Data analysis: the Epi Info2002 software double entry data, statistical methods using SPSS 11.0 statistical package, hypertension standardized prevalence rate to the 2000 national census data. [Results]. Study the prevalence of hypertension should be investigated 684 683 people, the actual survey response rate was 99.85%. Survey the crowd in the men 333, women 350. The total of 109 patients with hypertension, the prevalence of hypertension was 15.96%. The Baiyun District residents prevalence of men and women were 17.1%, 14.9%. Prevalence of hypertension for men and women was not statistically significant, X2 = 0.650, P = 0.420. 2. Different socio-economic conditions in the prevalence of hypertension (1) Baiyun District of different cultural levels of the residents of the urban fringe population prevalence varied secondary and below the survey population, the high school / secondary school graduates, Big Ben and higher prevalence of hypertension were 18.8%, 11.0%, 4.3%, and the prevalence of hypertension with the level of education increased the downward trend, X2 = 10.616, P = 0.005. (2), Baiyun District, urban-rural residents of different occupations hypertension prevalence varied, manual and mental workers in the survey population prevalence of hypertension were 19.4% and 9.2%. Manual workers than mental workers more likely to suffer from hypertension, z 2 = 11.697, P = 0.001. But should take into account the age of the confounding factors. (3) different marital status, prevalence of hypertension, Baiyun District residents in urban fringe difference. Prevalence of a single person (including unmarried, separated, widowed, divorced people), normal marriage crowd (cohabitation, marriage) and marital status of hypertension prevalence 8%, 17.9%, and 50.0%, respectively, of different marital status rate difference was statistically significant, X2 = 13.685, P = 0.001 3. different age and gender groups of residents in blood pressure mean blood pressure values ??circumstances, Baiyun District, urban fringe of 124.52 ± 14.81/77.89 ± 9.21mmHg, male blood pressure an average of 126.51 ± 12.93/79.35 ± 8.48mmHg, women's blood pressure mean 122.62 ± 16.19/76.49 ± 9.65mmHg, male systolic blood pressure mean higher than women, and the difference is statistically significant, t = 3.477, P = 0.001, and diastolic blood pressure were higher than those in men women, and the difference was statistically significant, t = 4.114, P = 0.000. Survey the crowd the 16 to 24,25-34,35-44,45 ~ 54, 55 ~ 64,65-69 year-old group blood pressure mean were 117.48 ± 12.52/73.30 ± 8.28mmHg,, 118.69 ± 11.44/75.49 ± 7.81 mmHg, 122.52 ± 12.01/77.68 ± 9.39 mmHg, 126.36 ± 13.40/78.82 ± 9.08 mmHg, 133.31 ± 17.41 / 81.96 ± 8.86mmHg, 137.36 ± 15.14/82.71 ± 7.44mmHg, each age group systolic mean difference was statistically significant (F = 26.087 , P = 0.000), diastolic blood pressure each age group the mean difference was statistically significant (F = 15.012, P = 0.000), systolic / diastolic mean of each age group increased and increased with age. Crowd systolic blood pressure with age, a significant positive correlation (rs = 0.397, P = 0.000); crowd diastolic blood pressure, age, a significant positive correlation (rs = 0.326, P = 0.000). Baiyun District, residents of the urban fringe crowd systolic blood pressure with age significant positive correlation (rs = 0.216, P = 0.000); crowd diastolic blood pressure, age, a significant positive correlation (rs = 0.228, P = 0.000). 4 blood pressure level hierarchical constituent ratio of (1), Baiyun District, residents of the urban fringe investigated people with normal blood pressure, normal high-value, high blood pressure constitute 31.0%, 53.0%, 16.0%, blood pressure values ??of the people of different age groups classification constitute significant than the difference x2 = 104.844, P = 0.000. (2), Baiyun District, urban and rural areas combined with the Ministry of residents hypertension patients in Ⅰ, Ⅱ III level constitute 79.8%, 14.7%, 5.5%, the majority of patients with hypertension concentrated in grade Ⅰ; different age groups of hypertensive sub- the level constitutes no differences x2 = 7.336, P = 0.693. Each age group hypertension patients with the highest proportion of grade Ⅰ, Ⅱ grade, followed by the lowest, Ⅲ grade. [Conclusion] 1. Baiyun District fringe areas residents epidemic situation is more severe hypertension, hypertension prevalence rate was 15.96%. The prevalence of hypertension in men and women, respectively, 17.1% and 14.9%, respectively. 2. Baiyun District urban fringe residents hypertension in many factors, multivariate analysis showed that age, body mass index (BMI) and intake of meat the class crowd hypertension risk factors.
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