Surveys and data collection systems
Language: eng
Subjects: Public health; Statistics; Health surveys; Medical Statistics
Other titles: NCHS surveys and data collection systems
Description: "Some NCHS data systems and surveys are ongoing annual systems while others are conducted periodically. NCHS has two major types of data systems: systems based on populations, containing data collected through personal interviews or examinations; and systems based on records, containing data collected from vital and medical records."
Notes: Viewed on Oct. 4, 2005.