Abstract
<p class="lead">Heart disease is the leading cause of death among Filipinos, accounting for 1 out of every 5 deaths in the past year. Each year, 170,000 Filipinos die from cardiovascular diseases, up from 85,000 more than 20 y ago. This paper aims to estimate the risk of developing Heart Attack using Survival Analysis. The data were obtained from the records of Quirino Memorial Medical Center with a total of 447 observations. The data includes the time t (patient’s age), gender of the patient, covariates such as lifestyle (smoking and drinking alcohol); health conditions (Hypertension, Diabetes, High-density Lipoprotein (HDL) and Low-density Lipoprotein (LDL) level); and family history of Cardiovascular Disease, and the event of interest which is the occurrence of heart attack. The researchers applied two main statistical treatments in examining the data: (1) Cox Regression in formulating a model to estimate the risk of heart attack based on the given covariates; (2) Kaplan-Meier Estimates in calculating the probability of each patient to survive in accordance to their gender depending on the covariates the patients have. Results showed that females have more risks of developing heart attack than males for patients with hypertension, with diabetes, with a family history of CVD, and those who are smoking. However, for patients who are alcoholic, men are more prone to the risk of heart attack than women. The results were obtained with the help of SPSS.</p>
Highlights
Heart disease is the leading cause of death among Filipinos, accounting for 1 out of every 5 deaths in the past year
52% of the patients without heart attack reveal that they have no family history of Cardiovascular Disease (CVD)
Among the five covariates, patients who are alcoholic reveal an opposite result from the others
Summary
Heart disease is the leading cause of death among Filipinos, accounting for 1 out of every 5 deaths in the past year. The National Statistics Office (NSO) said that heart disease was cited as the cause of 100,908 deaths or 21% percent of the 480,820 deaths reported from January 2009 to March 2010 [1]. Heart attack is the death of a segment of heart muscle caused by the loss of blood supply [3]. It occurs when one or more of your coronary arteries become blocked. This is caused by a coronary artery narrowed from the build-up of various substances, including cholesterol known as coronary artery disease [4]. A heart attack can be caused by a severe spasm of a coronary artery. A spasm may be related to taking certain drugs, such as cocaine, emotional stress or pain, exposure to extreme cold and cigarette smoking [5]
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