What is nhanes

Chance for participants to take important tests and gain additional health information about themselves. Tests are done at no expense to participants. Communities throughout Oakland County will have residents participating in the survey. Individual eligibility is determined by a set of questions administered by a NHANES interviewer during a home interview. Years Available. From to , a total of seven national examination surveys were conducted.

Beginning in , the survey has been conducted continuously. Continuous since ; data are publicly released in 2-year cycles. Estimates are calculated using one or more 2-year cycles.

The component of additional questions and procedures provided information on the common heart, vascular, lung, and blood diseases, risk factors and elements of medical care.

It also indicated how representative the NHLBI population-based epidemiologic studies were and to what extent the findings of these studies could be generalized to the United States population. The first wave of data collection was completed from to The second wave of data collection was carried out from to ECG data were released to the public in To supplement the fourth National Health and Nutrition Examination Survey protocol to include data on the common heart, vascular, lung, and blood diseases.