title: A Study to Find Out the Full Immunization Coverage of 12 to 23-month old Children and Areas of Under-Performance using LQAS Technique in a Rural Area of Tripura.
abstract: BACKGROUND
  It is very important to analyze the factors which acts as obstacle in achieving 100% immunization among children. Lot Quality Assurance Sampling (LQAS) is one of the effective method to assess such barriers.
  
  
  OBJECTIVE
  To assess the full immunization coverage among 12 to 23-month old children of rural field practice area under Department of Community Medicine, Agartala Government Medical College and identify the factors for failure of full immunization.
  
  
  METHODS
  A community based cross-sectional study was conducted from November 2013 to October 2014 on children aged 12 to 23 months old of area under Mohanpur Community health centre. Using LQAS technique 330 samples were selected with multi-stage sampling, each sub-centre being one lot and two calculated to be the decision value. Data was collected using pre-designed pre-tested questionnaire during home visit and verifying immunization card and analysed by computer software SPSS version 21.0.
  
  
  RESULTS
  The full immunization coverage among 12 to 23 months old children of Mohanpur area was found as 91.67%. Out of all the 22 sub-centres, 36.36% was found under performing as per pre-fixed criteria and the main reasons for failure of full immunization in those areas are unawareness of need of subsequent doses of vaccines and illness of the children.
  
  
  CONCLUSIONS
  LQAS is an effective method to identify areas of under-performance even though overall full immunization coverage is high.
authors.affiliation: Assistant Professor, Department of Community Medicine, Tripura Medical College and Dr. BRAM Teaching Hospital , Agartala, Tripura, India .
authors.forename: Anjan
authors.initials: A
authors.lastname: Datta
authors.affiliation: Associate Professor, Department of Community Medicine, Agartala Government Medical College and G B Pant Hospital , Agartala, Tripura, India .
authors.forename: Subrata
authors.initials: S
authors.lastname: Baidya
authors.affiliation: Assistant Director, Monitoring and Evaluation, Tripura State AIDS Control Society, Department of Health and Family Welfare , Govt. of Tripura, India .
authors.forename: Srabani
authors.initials: S
authors.lastname: Datta
authors.affiliation: Senior Resident, Department of Community Medicine, Agartala Government Medical College and G B Pant Hospital , Agartala, Tripura, India .
authors.forename: Chanda
authors.initials: C
authors.lastname: Mog
authors.affiliation: Senior Resident, Department of Community Medicine, Agartala Government Medical College and G B Pant Hospital , Agartala, Tripura, India .
authors.forename: Shampa
authors.initials: S
authors.lastname: Das
keywords: Agartala; Lot quality coverage survey; National Family Health Survey; Vaccine preventable diseases