Vaccination coverage: MMR for one dose (5 years old) - WMCA

All children for whom the local authority is responsible who received one dose of MMR on or after their first birthday and at any time up to their fifth birthday as a percentage of all children whose fifth birthday falls within the time period.RationaleMMR is the combined vaccine that protects against measles, mumps and rubella. Measles, mumps and rubella are highly infectious, common conditions that can have serious complications, including meningitis, swelling of the brain (encephalitis) and deafness. They can also lead to complications in pregnancy that affect the unborn baby and can lead to miscarriage.Vaccination coverage is the best indicator of the level of protection a population will have against vaccine preventable communicable diseases. Coverage is closely correlated with levels of disease. Monitoring coverage identifies possible drops in immunity before levels of disease rise.The first MMR vaccine is given to children as part of the routine vaccination schedule, usually within a month of their first birthday. They'll then have a booster dose before starting school, which is usually between three and five years of age. Previous evidence shows that highlighting vaccination programmes encourages improvements in uptake levels.May also have relevance for NICE guidance PH21: Reducing differences in the uptake of immunisations (The guidance aims to increase immunisation uptake among those aged under 19 years from groups where uptake is low).Definition of numeratorTotal number of children whose fifth birthday falls within the time period who received one dose of MMR on or after their first birthday and at any time before their fifth birthday.Data for 2013 to 2014 are available at source at LA level. Data prior to 2013 to 2014 were collected at PCT level and converted to LA level using the criteria as described in the notes section below.Definition of denominatorTotal number of children whose fifth birthday falls within the time period.Data from 2013 to 2014 are available at source at LA level. Data prior to 2013 to 2014 were collected at PCT level and converted to LA level using the criteria as described in the notes section below.CaveatsFull GP postcodes are used to aggregate data to ICB. The GP-level coverage data is collected by NHS Digital Strategic Data Collection Service (SDCS) and published by the UK Health Security Agency (UKHSA) COVER team. ICB data is experimental data and should be treated with caution. It is not an official statistic.

所有由地方当局负责的儿童中，在满一周岁及之后的任何时间点接受过至少一剂MMR疫苗，并在其五岁生日前的任何时间点完成疫苗接种的儿童比例，占同期五岁生日儿童总数的百分比。MMR疫苗是一种联合疫苗，用于预防麻疹、腮腺炎和风疹。麻疹、腮腺炎和风疹是高度传染性疾病，可能引起严重并发症，包括脑膜炎、脑肿胀（脑炎）和耳聋。它们还可能引起妊娠期并发症，影响胎儿健康，甚至导致流产。疫苗接种覆盖率是衡量一个群体对疫苗可预防的传染病保护水平的最优指标。覆盖率与疾病水平密切相关。监测覆盖率有助于在疾病水平上升之前识别免疫力的可能下降。第一剂MMR疫苗通常在儿童满一周岁后的一个月内作为常规疫苗接种计划的一部分进行接种。随后，在入学前，通常在3至5岁之间，他们将接受加强剂接种。已有证据显示，突出疫苗接种计划可以促进接种率的提高。此数据可能对NICE指导文件PH21：减少疫苗接种接受度差异（该指导旨在提高19岁以下群体中疫苗接种接受度较低的群体的疫苗接种率）具有相关性。分子定义：在研究时间段内，五岁生日儿童中，在满一周岁及之后的任何时间点接受过至少一剂MMR疫苗的儿童总数。2013年至2014年的数据可在源数据中按地方当局级别获取。2013年至2014年之前的数据是在PCT级别收集的，并使用以下注释部分中描述的标准转换为地方当局级别。分母定义：在研究时间段内，五岁生日儿童的总数。2013年至2014年的数据可在源数据中按地方当局级别获取。2013年至2014年之前的数据是在PCT级别收集的，并使用以下注释部分中描述的标准转换为地方当局级别。注意事项：使用完整的GP邮政编码将数据聚合到ICB。GP级别的覆盖率数据由NHS数字战略数据收集服务（SDCS）收集，并由英国健康安全局（UKHSA）COVER团队发布。ICB数据为实验数据，应谨慎处理。它不是官方统计数据。