Vaccination coverage: MMR for one dose (2 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 second birthday as a percentage of all children whose second 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 second birthday falls within the time period who received one dose of MMR on or after their first birthday and at any time before their second 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 second birthday falls within the time period.Data from 2013to 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.

本数据集涵盖了由地方当局负责的所有儿童，其中接受过至少一剂MMR疫苗的儿童占所有在该时间段内第二生日到来的儿童总数的百分比。MMR疫苗是一种综合疫苗，用于预防麻疹、流行性腮腺炎和风疹。麻疹、流行性腮腺炎和风疹是高度传染性疾病，可能导致严重的并发症，包括脑膜炎、脑肿胀（脑炎）和耳聋。这些疾病还可能引起妊娠期间的并发症，影响未出生的婴儿，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性疾病保护水平的最重要指标。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发现免疫力的可能下降。首次MMR疫苗接种通常在儿童一岁内完成，随后在学校入学前进行加强剂接种，通常在3至5岁之间。已有证据表明，突出疫苗接种计划可以促进接种率的提高。此数据集亦可能对NICE指导方针PH21：减少疫苗接种率差异（该指导方针旨在提高19岁以下接种率低的群体中的疫苗接种率）具有相关性。分子定义：在给定时间段内，第二生日到来的儿童中，自满一周岁起至第二生日前接受至少一剂MMR疫苗的儿童总数。2013至2014年的数据可在源处按地方当局级别获取。2013至2014年之前的数据在PCT级别收集，并按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：在给定时间段内，第二生日到来的儿童总数。2013至2014年的数据可在源处按地方当局级别获取。2013至2014年之前的数据在PCT级别收集，并按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邮编将数据汇总到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。