Description of Variables
| Variable | Description | 
| Title | Full authoritative title of the study | 
| Abstract | A summary describing the purpose, nature, and scope of the data collection, special characteristics of its contents, major subject areas covered. | 
| Main topics/Subject category | This is a sub-section of the abstract and include information on the subject coverage of the data | 
| Variables | List of variables in the dataset | 
| Keywords | A list of assigned subject keywords covering all topics included in the data at question/variable level. | 
| Identifier Variables | Lowest level(s) of geographic aggregation covered by the data. Examples include Government Office Regions, Metropolitan Districts and local authorities. | 
| Economic/Subject categories | Defines the overall subject content of the dataset | 
| Area of health system | Primary care, secondary care and social care | 
| Disease Area | Disease area that dataset focuses on | 
| Socio-Economic | Whether the dataset has any information on socio-economic status - Yes/No response | 
| Demographic | Whether the dataset has any demographic data - Yes/No response | 
| Risk Behaviours | Whether the dataset has any risk behavioural data (e.g. smoking, diet, exercise) - Yes/No response | 
| Data collecting organisation(s) | The person(s) and/or organisation(s) responsible for creating the data. | 
| Data type | The method or dimension of the data collection. | 
| National/Regional | Indicates the specific town(s), region(s)/counties or country(s) covered by the data. | 
| Coverage (date of field work) | The date(s) when the data were collected. | 
| Sample | The group of persons or other elements that are the object of research and to which any analytic results refer. Age, nationality, and residence commonly help to delineate a given universe, but any of a number of factors may be involved, such as sex, ethnicity, income, etc. | 
| Availability | Where the data is held | 
| Access Condition | Provides information about standard conditions of use. | 
| Link | Provides link to dataset | 
| Contact | This field indicates who to contact with queries about the data. | 
| Publications | Publications that have used the corresponding dataset | 

