Indu B Ahluwalia1, Irene Tessaro, Sheila Rye, Lindsey Parker. 1. Division of Adult and Community Health, National Centers for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia 30341-3724, USA. Iahluwalia@cdc.gov
Abstract
BACKGROUND: This study assessed the validity of several self-reported cardiovascular risk factors among low-income women aged 40-64 years in West Virginia. METHODS: A cross-sectional survey was conducted of 733 women participating in the Well Integrated Screening and Evaluation for Women Across the Nation (WISEWOMAN) project in West Virginia to examine agreement between self-report and clinical screenings in the prevalence of risk factors related to coronary heart disease (CHD). Women participating in the study were interviewed face-to-face before administration of clinical screenings that assessed height, weight, Quetelet's index, high blood pressure (systolic > or =140 mm Hg or diastolic > or =90 mm Hg), and elevated total cholesterol concentrations (> or =200 mg/dL and > or =240 mg/dL). RESULTS: The overall results showed high sensitivity and specificity for each of the risk factors examined; for overweight/obesity, the sensitivity was 96% and specificity was 93%; for cholesterol > or =240 mg/dL, sensitivity was 85% and specificity was 67%; for hypertension, sensitivity was 77% and specificity was 86%. Using a threshold value of > or =240 mg/dL for hypercholesterolemia led to higher sensitivity but a lower specificity than for a value of > or =200 mg/dL. CONCLUSIONS: This study found that among low-income women at higher risk for cardiovascular disease (CVD), self-reported values for high body mass index (BMI), hypercholesterolemia, and hypertension were well correlated with clinical measures, as indicated by high sensitivity values. Thus, self-reported values can be used for surveillance, targeted screenings, and health promotion activities, including lifestyle changes.
BACKGROUND: This study assessed the validity of several self-reported cardiovascular risk factors among low-income women aged 40-64 years in West Virginia. METHODS: A cross-sectional survey was conducted of 733 women participating in the Well Integrated Screening and Evaluation for Women Across the Nation (WISEWOMAN) project in West Virginia to examine agreement between self-report and clinical screenings in the prevalence of risk factors related to coronary heart disease (CHD). Women participating in the study were interviewed face-to-face before administration of clinical screenings that assessed height, weight, Quetelet's index, high blood pressure (systolic > or =140 mm Hg or diastolic > or =90 mm Hg), and elevated total cholesterol concentrations (> or =200 mg/dL and > or =240 mg/dL). RESULTS: The overall results showed high sensitivity and specificity for each of the risk factors examined; for overweight/obesity, the sensitivity was 96% and specificity was 93%; for cholesterol > or =240 mg/dL, sensitivity was 85% and specificity was 67%; for hypertension, sensitivity was 77% and specificity was 86%. Using a threshold value of > or =240 mg/dL for hypercholesterolemia led to higher sensitivity but a lower specificity than for a value of > or =200 mg/dL. CONCLUSIONS: This study found that among low-income women at higher risk for cardiovascular disease (CVD), self-reported values for high body mass index (BMI), hypercholesterolemia, and hypertension were well correlated with clinical measures, as indicated by high sensitivity values. Thus, self-reported values can be used for surveillance, targeted screenings, and health promotion activities, including lifestyle changes.
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