EC315 – Quantitative Research Methods
Fall II 2011
TABLE OF CONTENTS
BACKGROUND…………………………………………………………………………………………3
REGRESSION ANALYSIS……………………………………………………………………..………4
CONCLUSIONS…………………………………………………………………………………………6
BIBLIOGRAPHY………………………………………………………………………………………..8
APPENDIX……………………………………………………………………………………………….9
I. Background According to the Center for Disease Control and Prevention (CDC)” Type 2 diabetes, which was previously called non-insulin-dependent diabetes mellitus (NIDDM) or adult-onset diabetes, may account for about 90% to 95% of all diagnosed cases of diabetes”. The CDC also attributes the onset of type 2 diabetes to obesity in many cases. The purpose of this analysis is to determine the effects of obesity (OBESE) on the incidence of diabetes (DIABETIC) while holding the effects of alcohol consumption (ALCOHOL), ethnicity (HISPANIC), and age (AGE) constant. This study will use cross-sectional data from the 50 states for the year 2010. The model (less constant and coefficients) is:
DIABETIC = OBESE + ALCOHOL + HISPANIC + AGE The dependent variable, DIABETIC, is defined as the percent of people who have been told by a doctor that they have diabetes, and is extracted from the Center for Disease Control and Prevention Behavioral Risk Factor Surveillance System (2011). Data for the independent variables OBESE, ALCOHOL, HISPANIC, and AGE were also taken from the Center for Disease Control and Prevention Behavioral Risk Factor Surveillance System (2011) by percentage. OBESE is defined as individuals with a body mass index (BMI) greater than 30. ALCOHOL is defined as heavy drinkers (adult men having more than two drinks per day and adult women having more than one drink per day). HISPANIC is defined as individuals who identify themselves as having Hispanic ethnicity. Lastly AGE is defined as individuals 45 years of age and older. The independent variables were selected due to their association with
References: American Diabetes Association Home Page - American Diabetes Association. (n.d.). American Diabetes Association Home Page - American Diabetes Association. Retrieved November 19, 2011, from http://www.diabetes.org/ CDC - Basics about Diabetes - Diabetes & Me - Diabetes DDT. (n.d.). Centers for Disease Control and Prevention. Retrieved November 19, 2011, from http://www.cdc.gov/diabetes/consumer/learn.htm Center for Disease Control and Prevention Behavioral Risk Factor Surveillance System. (n.d.). Centers for Disease Control and Prevention. Retrieved November 19, 2011, from http://apps.nccd.cdc.gov/brfss/page.asp?cat=XX&yr=2010&state=All#XX Appendix 1. Excel Summary output for original regression: 2. Excel Summary output for final regression: