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Abstract copyright UK Data Service and data collection copyright owner.The Welsh Government's National Survey for Wales covers a random sample of 12,000 adults a year (aged 16+) living in private households across Wales. The survey provides representative, reliable and up-to-date information about the people of Wales down to local authority level.The survey began in 2012. In 2015 it was reviewed the decision was taken to amalgamate five large scale social surveys that were carried out in Wales into one. From 2016-17 onwards the National Survey for Wales was expanded to include topics previously covered by the Welsh Health Survey, Active Adults Survey, Arts in Wales Survey, and Welsh Outdoor Recreation Survey.The aim of the survey is to provide representative, reliable and up-to-date information about the people of Wales down to local authority level. Prior to March 2020, the survey was carried out face-to-face in respondents’ homes. Since May 2020 onwards, the survey has been carried out by telephone. Topics were updated monthly and results published monthly for May to September 2020; from October, topic updates and publications switched to quarterly.The survey continued in telephone mode for 2021-22 onwards, with an online element added from July 2021. Further information is available on the Welsh Government National Survey for Wales webpages.The National Survey for Wales, 2021/22 and 2022/23: Combined Data study combines two full years of NSW data. Many of the same questions were asked in both years of the survey and this combined dataset only contain these common variables, with an accompanying variable catalogue (see documentation). The two-year combined dataset allows the production of more detailed breakdowns at local authority or health board level and makes it easier to pick up differences between areas. It also allows more in-depth analysis for some smaller subgroups, which would not have been reliable with only one year's worth of survey...