Surveys, health service and administrative data

SurveyVarious surveys and sources of health services and administrative data are used within the field of public health intelligence. Details of those accessible online are detailed below:


A Census is a count of all people and households in the country. It provides population statistics from a national to neighbourhood level for government, local authorities, business and communities. In England and Wales, the Census is undertaken every 10 years by the Office for National Statistics (ONS) with simultaneous censuses carried out in Scotland (GROS) and Northern Ireland (NISRA). The release of 2011 Census data will be carried out in a phased approach between July 2012 and October 2013 with some subsequent releases after that.


Health Behaviour in School-aged Children (HBSC) Survey 

A cross-national research study conducted in collaboration with the World Health Organisation (WHO) Regional Office for Europe. The study aims to gain new insight into, and increase our understanding of young people's health and well-being, health behaviours and their social context.

Welsh Health Survey 

Provides information about the health of people in Wales, the way they use health services and the things that can affect people's health. The survey was developed to meet a range of needs, including providing estimates of health status, health-related lifestyle and health service use at national (Wales) level, for population sub-groups (such as age, sex, socio-economic group) and for local authorities.

Health service data

National Community Child Health Database (NCCHD)

Derived from health board administrative community child health systems. NCCHD consists of anonymised records for all children born, resident or treated in Wales born after 1987.  

Patient Episode Database for Wales (PEDW) 

The Patient Episode Database for Wales (PEDW) is managed by the NHS Wales Informatics Service (NWIS). PEDW records all episodes of inpatient and daycase activity in NHS Wales hospitals, which includes planned and emergency admissions, minor and major operations, and hospital stays for giving birth. Hospital activity for Welsh residents treated in other UK nations (primarily England) is also included. 
The data cover a range of indicators which are part of the new GP contract.  These include management of chronic conditions, the patient experience, how the practice is organised and specific services such as cervical screening and maternity services.  Practices are awarded points according to the number of indicators they meet and they receive funding accordingly. Annual QOF data are also available. 

Administrative data

Birth registrations

The Office for National Statistics (ONS) collates and validates birth registrations data. Data are available for residents of England and Wales by area of residence, sex and birthweight.

Death registrations

Individual records for death registrations are sent on a weekly basis from the Registrars’ offices across England and Wales to the Office for National Statistics (ONS). The Office for National Statistics collates and validates the data. Data are available for residents of England and Wales by area of residence, age, sex and underlying cause of death.

Last updated: 12 March 2014