National Diet and Nutrition Survey
The National Diet and Nutrition Survey (NDNS) programme was initially established in 1992. The initial phase included four cross-sectional surveys which covered separate age groups: children aged 1.5 years to 4.5 years in 1992-1993; young people aged 4 to 18 years in 1997; people aged 65 years and over in 1994-1996 and adults aged 19 to 64 years in 2000-2001. Responsibility for the programme transferred to the Food Standards Agency in 2000. From 2008, a new continuous NDNS cross-sectional survey started. The rolling programme will provide detailed food consumption data essential to support risk assessments for food chemicals and will also benefit a wide range of government activities related to diet and health.
Longitudinal Studies:
There are also a number of longitudinal and cohort studies that collected information on health related topics. individuals or households and, like the cross-sectional studies, are repeated regularly. However these studies follow the same people each time so they can get the answer to the same question for the same person over an cambodia rcs data extended time period. This allows researchers to analyse change at the individual level and allow research questions such as “What predicts poor health in middle age” to be addressed.
Understanding Society
The Understanding Society study, or the United Kingdom Household Longitudinal Study (UKHLS) began in 2009 and is a successor to the British Household Panel Survey (BHPS). The BHPS sample forms part of Understanding Society from Wave 2 onwards. As a multi-topic household survey, the purpose of Understanding Society is to understand social and economic change in Britain at the household and individual levels. It is anticipated that over time the study will permit examination of short- and long-term effects of social and economic change on the general well-being of the UK population. The study includes annual measures of physical and mental well-being, allowing changes in individuals’ well-being to be examined over time.