Study On The Status Of Vaccination After The Introduction Of IPV In Four Provinces In China

Objective:Understand the status of vaccination after the introduction of IPV in the provinces in China,and explore the influencing factors of the first dose of IPV vaccination.Understanding the child parents or guardians awareness of the inactivated polio vaccine and the influencing factors and the reasons for the child's first dose of IPV not vaccinated,provide reference for the implementation strategy of IPV vaccination in China.Methods:The census method was used to collect provincial immunization planning information management system platform data for the four provinces of Jilin Province,Hubei Province,Ningxia Hui Autonomous Region,and Tianjin,including all the conditions that were born from October 1,2015 to April 30,2016.Child vaccination cases,analysis of IPV vaccination rates.Using the systematic sampling method,the first dose of unvaccinated IPV children selected by the provincial provincial immunization planning information management system platform was selected,the eligible children were selected,and basic information such as the contact information of the parents was obtained.The first dose of unvaccinated IPV was used.Parents or guardians of children conduct on-site investigations.Use EpiData to input survey information and apply SPSS 19.0 software for statistical analysis.Results:1.Study on polio vaccination after IPV introduction in China's provincesA total of 600,516 cases of all registered children born from October 1,2015 to April 30,2016 were exported.Children's first dose of IPV vaccination in the 50.81%-91.56%between the first dose of IPV vaccination with the implementation of the time was gradually increased.The first dose of IPV in the study provinces was 89.31%.The first dose of IPV inoculation rates in each province studied was 90.84%and 95.97%in Hubei and Ningxia,respectively,both higher than 90%.The 1st dose of IPV vaccination for local children was higher than that of migrant children,which were 90.94%and 81.36%,respectively.The timely inoculation rates for the first,second,and third doses of the research PV vaccine were 95.70%,93.95%,and 89.90%,respectively;the timely coverage rate was 88.60%.The first dose of the PV vaccine was 90.77%-99.43%in time,the second 93.38%-99.27%,the third 85.81%-95.06%,and the whole course was 84.66%-94.79%.The timely inoculation rates of local children's 1,2,and 3 doses of PV vaccine were 96.40%,94.99%,and 91.18%,respectively,and the timely immunization rate was 89.94%;the timely immunization rates of the first,second,and third doses of immigrant children were 92.27%.88.88%,83.68%,and the timely inoculation rate was 82.07%.2.Field investigation of reasons for the first dose of unvaccinated children with IPV in the province of China A total of 616 questionnaires were collected and 609 valid questionnaires were returned.The effective response rate was 98.9%.Among them,200 were in Jilin(32.8%),198 in Hubei(32.5%),186 in Ningxia(30.5%),and 25 in Tianjin(4.1%).Logistic regression analysis was used to analyze the influencing factors of children's parents knowing that IPV and IPV were included in the free vaccination.The results showed that the survey area was higher in Ningxia than in other provinces(OR=3.515,95%CI:1.314-9.403,OR=2.792,95%CI:1.121-6.955),the surveyed students with junior high school education and above are higher than primary school and below(OR=1.952,95%CI:1.188-3.206,OR=1.733,95%CI:1.098-2.735),and the children of migrants are lower than the local(OR= 0.291,95%Cl:0.186-0.457,OR=0.279,95%Cl:0.179-0.435).The site investigated the reason why the first dose of children was not vaccinated with IPV.No IPV vaccine was 24.79%at the time of vaccination.The vaccine was not safe.The fear of vaccination was 33.83%.The negative publicity accounted for 6.73%.IPV accounted for 11.66%.Inoculations in other provinces accounted for 12.97%and others accounted for 10.85%.There was no IPV vaccine when inoculated in Tianjin or Hubei,which was the highest,which was over 30%.It was worried that the vaccine insecurity was higher in Jilin and Ningxia.The differences between the provinces studied were significant.Conclusion:1.The use of provincial immunization planning information management system platform data is simple,feasible and reliable.2.The first dose of IPV vaccination rate for children in the study provinces was 89.31%;the first dose of IPV vaccination rate for local children(90.94%)was higher than that for mobile children(81.36%).3.Children's parents or guardians have knowledge of the inactivated polio vaccine in different provinces of study;rural areas are lower than cities;elementary education and below are lower than junior high school and above;professional and technical personnel are higher than other occupational groups,suggesting that rural areas should be strengthened.Parents with low education level have publicized the policies and vaccination related to polio inactivated vaccines.Multivariate analysis showed that the survey area,children's household registration attributes,and children's parental qualifications were the main factors affecting IPV awareness.4.The main reason why the first dose of children in the survey area was not vaccinated against IPV was that parents or guardians of children were worried that the vaccine was not safe.In case of adverse reactions to vaccination,the vaccination unit needed to spread the knowledge about the safety of IPV injection;there was no proportion of IPV vaccine at the time of vaccination.Insufficient supply of vaccines prompted prompt reinforcement of vaccine supply management.