Factors associated with hospital admissions due to hypertension

ABSTRACT Objective: To study the temporality of hospital admissions due to arterial hypertension and its associated factors. Methods: An ecological study with secondary data on hospital admissions due to essential arterial hypertension – ICD 10, from the Hospital Information System, the Mortality Information System and and the Primary Care Information System, between 2010 and 2015. Descriptive analysis using means, proportions and linear regression. Results: We recorded 493,299 hospitalizations due to arterial hypertension from 2010 to 2015, with an average annual progressive cost decrease of −7.76% and −24.21%. Of the patients admitted, 59.2% were women, 60.2% were non-white and 54.7% were older than 60 years. The mean length of stay was 4.2 days, and the hospitalization cost was R$307.60. The multiple linear regression variables that remained significant were the percentage of admissions due to primary care-sensitive conditions, the per capita income and the City Human Development Index. Conclusion: Hospital admissions due to arterial hypertension have an impact on the percentage of admissions due to primary care- sensitive conditions. Intensifying primary care activities, raising-awareness among professionals to the importance of integrated care, and investing in social development are crucial to change the reality of hypertension in terms of its control and complications.

摘要
研究目的：探讨动脉高血压住院患者的时间分布特征及其相关影响因素。
研究方法：本研究为生态学研究，采用2010-2015年来自医院信息系统（Hospital Information System）、死亡信息系统（Mortality Information System）及基层医疗信息系统（Primary Care Information System）的原发性动脉高血压（essential arterial hypertension，ICD-10编码）住院患者二手数据，运用均数、构成比及线性回归开展描述性分析。
研究结果：2010-2015年期间，本研究共收录动脉高血压住院病例493299例，患者年均住院费用呈持续下降趋势，降幅分别为7.76%和24.21%。入院患者中，59.2%为女性，60.2%为非白人，54.7%为60岁以上人群；平均住院时长为4.2天，住院费用为307.60雷亚尔。最终纳入多元线性回归模型的显著影响因素包括基层医疗敏感病症（primary care-sensitive conditions）住院占比、人均收入及城市人类发展指数。
研究结论：动脉高血压住院人次对基层医疗敏感病症的住院占比存在影响。强化基层医疗服务、提升医护人员对整合式医疗重要性的认知，并加大社会发展投入，对于改善高血压的防控及其并发症现状至关重要。