2011 Census Microdata Individual Safeguarded Sample (Local Authority): Northern Ireland

<p>The UK censuses took place on 27 March 2011. They were run by the Northern Ireland Statistics & Research Agency (NISRA), National Records of Scotland (NRS), and the Office for National Statistics (ONS) for both England and Wales. The UK comprises the countries of England, Wales, Scotland and Northern Ireland.</p><p>Statistics from the UK censuses help paint a picture of the nation and how we live. They provide a detailed snapshot of the population and its characteristics and underpin funding allocation to provide public services. This is the home for all UK census data.</p> The <I>2011 Census Microdata Individual Safeguarded Sample (Local Authority): Northern Ireland</I> data collection forms part of the statistical outputs from the 2011 Northern Ireland Census. A safeguarded microdata sample of individuals has been identified as a key Census user requirement, and was highlighted as part of a report specifying microdata products from the 2011 Census written by an expert user, Dr. Jo Wathan from the University of Manchester. <br>
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The purpose of a safeguarded sample of individuals is to be able to disseminate a detailed microdata file without onerous licensing conditions, by reducing the overall amount of detail compared to the secure samples. Whilst supplying sufficient detail on core variables to fulfil the intended aim of the microdata products, the safeguarded sample is a valuable multi-purpose research file that will be used on a wide range of projects. (For Censuses prior to 2011, these data may have been referred to as 'Samples of Anonymised Records', or SARSs.)<br>
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This safeguarded sample is of 5% of the total population at Local Authority level (Northern Ireland), and contain a similar level of detail to the equivalent End User Licence Census 2001 Microdata samples. A similar Northern Ireland dataset at Regional level is held under SN 7769. These samples have a low risk of disclosure; but not nil. Registered UK Data Service Census users can download the data to their laptops after agreeing terms and conditions that include constraints on data management under remote storage conditions.<br>
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Further information can be found on the Northern Ireland Statistics and Research Agency (NISRA) <a href="http://www.nisra.gov.uk/census/2011/results/specialist-products.html" title="Census microdata">Census microdata</a> webpage. <br>
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Corresponding Regional and Local Authority level data for England and Wales are held under SNs 7605 and 7682, and for Scotland under SNs 7834 and 7835.<br>
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<p>英国人口普查于2011年3月27日开展，由北爱尔兰统计与研究局（Northern Ireland Statistics & Research Agency, NISRA）、苏格兰国家档案库（National Records of Scotland, NRS），以及负责英格兰与威尔士地区的英国国家统计局（Office for National Statistics, ONS）共同执行。英国由英格兰、威尔士、苏格兰及北爱尔兰四个构成国组成。</p>
<p>英国人口普查统计数据有助于勾勒国家全貌与国民生活图景，提供人口规模及其特征的详尽快照，并为公共服务的资金分配提供依据。本平台即为所有英国人口普查数据的官方发布主页。</p>
《2011年普查微数据个人保护样本（地方当局级：北爱尔兰）》数据集是2011年北爱尔兰人口普查统计产出的组成部分。由曼彻斯特大学乔·沃坦（Jo Wathan）博士牵头撰写的2011年人口普查微数据产品专项报告中，明确将个人保护微数据样本列为核心用户需求之一。
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设置个人保护样本的目的，在于无需严苛的授权许可即可发布详细微数据文件——通过相较于安全样本精简部分细节维度，在保留核心变量足够细节以满足微数据产品既定目标的同时，打造一款可适配多场景研究的通用型珍贵数据集。（2011年之前的普查中，此类数据曾被称为“匿名记录样本”（Samples of Anonymised Records，简称SARS）。）
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本次保护样本覆盖北爱尔兰地方当局层级总人口的5%，细节丰富程度与2001年人口普查终端用户许可微数据样本相当。北爱尔兰地区级的同类数据集收录于SN 7769编号下。此类样本披露风险较低，但并非完全为零。已完成注册的英国数据服务中心（UK Data Service）人口普查授权用户，在同意包含远程存储数据管理约束在内的使用条款后，可将数据集下载至本地设备。
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更多相关信息可访问北爱尔兰统计与研究局（NISRA）的<a href="http://www.nisra.gov.uk/census/2011/results/specialist-products.html" title="Census microdata">普查微数据</a>官方网页。
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英格兰与威尔士地区对应层级的地方级及区级普查数据分别收录于SN 7605与SN 7682编号，苏格兰地区对应数据则收录于SN 7834与SN 7835编号。
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