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Documentation: Health Data 2011
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Publisher: County Health Rankings & Roadmaps
Document: Health Data: Technical Documentation
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Social Explorer; Health Data 2011: Technical Documentation
Health Data: Technical Documentation
Subject Definitions
T1: Quality of Life
Physically Unhealthy Days Per Month This measure is based on survey responses to the question: “Thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not good?” The value reported in the County Health Rankings is the average number of days a county’s adult respondents report that their physical health was not good. The measure is age-adjusted to the 2000 US population.
Physically Unhealthy Days Per Month

This measure is based on survey responses to the question: "Thinking about your physical health, which includes physical illness and injury, for how many days during the past 30 days was your physical health not good?" The value reported in the County Health Rankings is the average number of days a county's adult respondents report that their physical health was not good. The measure is age-adjusted to the 2000 US population.

Mentally Unhealthy Days Per Month

This measure is based on survey responses to the question: "Thinking about your mental health, which includes stress, depression, and problems with emotions, for how many days during the past 30 days was your mental health not good?" The value reported in the County Health Rankings is the average number of days a county's adult respondents report that their mental health was not good. The measure is age-adjusted to the 2000 US population.

T2: Fair or Poor Health
Adults That Report Fair or Poor Health

Self-reported health status is a general measure of health-related quality of life (HRQoL) in a population. This measure is based on survey responses to the question: "In general, would you say that your health is excellent, very good, good, fair, or poor?" The value reported in the County Health Rankings is the percentage of adult respondents who rate their health "fair" or "poor". The measure is age-adjusted to the 2000 US population. Respondents were adults (age 18 and more).

T3: Low Birthweight
Low Birthweight Births (<2.5kg)

Low Birthweight is the percentage of live births where the infant weighed less than 2,500 grams (approximately 5 lbs., 8 oz.). Low birthweight (LBW) represents two factors: maternal exposure to health risks and an infant's current and future morbidity, as well as premature mortality risk. From the perspective of maternal health outcomes, LBW indicates maternal exposure to health risks in all categories of health factors, including her health behaviors, access to health care, the social and economic environment she inhabits, and environmental risks to which she is exposed. In terms of the infant's health outcomes, LBW serves as a predictor of premature mortality and/or morbidity over the life course and for potential cognitive development problems.

T4: Health Care Providers
Primary Care Physicians (PCP)

Primary care physicians include practicing physicians (M.D.'s) specializing in general practice medicine, family medicine, internal medicine, pediatrics, and obstetrics/gynecology. The measure represents the number of primary care physicians and the rate of primary care physicians per 100,000 population. Access to care requires not only financial coverage, but also, access to providers.

T7: Years of Potential Life Lost
Premature Deaths (Less than 75 Years)

Premature Deaths (Less Than 75 Years) is the number of deaths under age 75. Measuring premature mortality, rather than overall mortality, reflects the County Health Rankings' intent to focus attention on deaths that could have been prevented.

Years of Potential Life Lost (YPLL) Rate per 100,000 Population (Less than 75 Years)

Years of Potential Life Lost (YPLL) is the years of potential life lost before age 75 (YPLL-75). Every death occurring before the age of 75 contributes to the total number of years of potential life lost. For example, a person dying at age 25 contributes 50 years of life lost, whereas a person who dies at age 65 contributes 10 years of life lost to a county's YPLL. The YPLL measure is presented as a rate per 100,000 population and is age-adjusted to the 2000 US population.

T9: Diabetes
Diabetic Medicare Enrollees Receiving Hba1c Test

Diabetic Monitoring is the percentage of diabetic fee-for-service Medicare patients ages 65-75 whose blood sugar control was monitored in the past year using a test of their glycated hemoglobin (HbA1c) levels.

T10: Sexual Activity
Chlamydia Cases

Sexually Transmitted Infections (STI) are measured as the chlamydia incidence (number of new cases reported) per 100,000 population. We provided both the rate of Chlamydia cases per 100,000 population and the number of Chlamydia cases.

T11: Tobacco and Alcohol Usage
Current Smokers (Persons More Than 18 Years)

Adult Smoking is the percentage of the adult population that currently smokes every day or most days and has smoked at least 100 cigarettes in their lifetime.

Drinking Adults (Persons More Than 18 Years)

Excessive Drinking is the percentage of adults that report either binge drinking, defined as consuming more than 4 (women) or 5 (men) alcoholic beverages on a single occasion in the past 30 days, or heavy drinking, defined as drinking more than one (women) or 2 (men) drinks per day on average.

T12: Diet and Exercise
Obese Persons (20 Years and Over)

Adult Obesity is the percentage of the adult population (age 20 and older) that reports a body mass index (BMI) greater than or equal to 30 kg/m2. Obesity is often the result of an overall energy imbalance due to poor diet and limited physical activity. Obesity increases the risk for health conditions such as coronary heart disease, type 2 diabetes, cancer, hypertension, dyslipidemia, stroke, liver and gallbladder disease, sleep apnea and respiratory problems, osteoarthritis, and poor health status.

Physically Inactive Persons (20 Years and Over)

Physical Inactivity is the percentage of adults aged 20 and over reporting no leisure-time physical activity. Examples of physical activities provided include running, calisthenics, golf, gardening, or walking for exercise.