Singh J, Sharma R S, Goel R K, Verghese T
National Institute of Communicable Diseases, Shamnath Marg, Delhi, India.
J Trop Pediatr. 1995 Aug;41(4):215-20. doi: 10.1093/tropej/41.4.215.
The current EPI methodology for identifying immunization coverage is simple and easy to carry out under field conditions and gives a good idea about immunization coverage. However, it is not useful for local managers. It does not identify small health units with poor performance. Information on performance at the local level is vital to enhance overall immunization coverage. Estimation of coverage on a small area basis can be made by Lot Quality Assurance Sampling (LQAS). LQAS was used in nine sub-centres of district Saharanpur. The methodology was found to be feasible and identified seven sub-centres with poor current performance. Although LQAS may not be a good substitute for current EPI methodology to evaluate immunization coverage in a large administrative area, it is suggested that LQAS is a useful additional method for routine monitoring and evaluation of health programmes on a small area basis, especially as the overall coverage increases.
目前用于确定免疫接种覆盖率的扩大免疫规划（EPI）方法简单，易于在现场条件下实施，并且能对免疫接种覆盖率有一个大致了解。然而，它对地方管理人员并无用处。它无法识别表现不佳的小型卫生单位。地方层面的绩效信息对于提高总体免疫接种覆盖率至关重要。可以通过批质量保证抽样（LQAS）对小区域的覆盖率进行估算。LQAS在萨哈兰普尔地区的9个基层卫生中心得到应用。该方法被证明是可行的，并识别出7个当前表现不佳的基层卫生中心。尽管LQAS可能无法很好地替代当前的EPI方法来评估大行政区的免疫接种覆盖率，但建议LQAS是一种用于在小区域基础上对卫生项目进行常规监测和评估的有用补充方法，特别是在总体覆盖率提高的情况下。
