The Field Of Psychosocial Epidemiology Essay

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The field of psychosocial epidemiology requires an understanding of independent, moderating, and dependent variables as they relate to health outcomes. What makes this challenging is that these variables are often multifactorial in nature. Using Figure 15-1 in your textbook as a guide (Friis and Sellers, 2009), develop a model that describes the independent, moderating and dependent psychosocial variables associated with a chronic health condition. Obesity is a chronic health condition characterized by presence of excess of body fat. Obesity is measured by using Body Mass Index (BMI) in children 2 years of age and older. The BMI is calculated by the body weight (in kilograms) divided by the height squared in meters. In adults, a BMI between 25 and 30 kg/m2 is regarded as overweight and a BMI greater or equal to 30 kg/m2 is regarded as obese. Obesity in adults is subcategorized as class I (BMI ≥30 to 35), class II (BMI ≥35 to 40), and class III (BMI ≥40) (Klish, 2016). It is associated with physiological ailments such as hypertension, Type 2 diabetes, heart disease, stroke, various forms of cancer, and is a key factor in metabolic syndrome (Must et al., 1999). A marked increase in the prevalence of overweight and obese children and adolescents has been observed all over the world in 80’s and 90’s. Evidence from the US suggests that this upward trend has continued into the 21st century ((Janssen et al., 2005). The prevalence of obesity among adolescents in the United States
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