Rivest Paul, Grenier Lise, Lonergan Guy, Bédard Lucie
Institut national de santé publique du Québec, Ste-Foy, QC.
Can J Public Health. 2005 May-Jun;96(3):197-200. doi: 10.1007/BF03403690.
In 2002-2003, as part of a pilot project, varicella vaccination was offered to susceptible students in grades 4 and 5 in schools whose health services are provided by a local community services centre in Montréal. This immunization campaign was merged with the hepatitis B immunization programme.
To calculate the proportion of grade 4 and 5 students susceptible to varicella; to calculate the proportion of susceptible students who agree to be vaccinated; to compare the proportion of susceptibles who agree to be vaccinated when varicella vaccination is offered with the first or the second dose of hepatitis B; and to assess whether a catch-up varicella immunization programme would affect the vaccine coverage of a concurrent hepatitis B vaccination programme.
The proportions of susceptible students and of parents of susceptibles who consented to vaccination were calculated. The proportions of parents of susceptibles who consented to vaccination were compared for both immunization strategies: varicella vaccination given with the first or second dose of hepatitis B vaccine. Logistic regression was performed to identify possible associations between consent to varicella vaccination and the various variables collected. Rates of vaccine coverage against hepatitis B after two doses were compared for the years 2000-2001 and 2002-2003.
Of 3,856 registered students, 3,486 (90.4%) returned consent forms. Among the 3,272 students for whom information was available, 441 (13.5%) were susceptible, including 394 (89.3%) who consented to vaccination. The rates of vaccine coverage in the schools after two doses of hepatitis B vaccine were exactly the same for the 2000-2001 and 2002-2003 school years.
Varicella vaccination of susceptible grade 4 and 5 students associated with a coincident hepatitis B vaccination campaign can be performed without negative impact on the hepatitis B vaccination programme.
2002年至2003年，作为一个试点项目的一部分，为蒙特利尔当地社区服务中心提供医疗服务的学校中四年级和五年级的易感学生提供了水痘疫苗接种。这次免疫活动与乙肝免疫计划合并进行。
计算四年级和五年级易感水痘学生的比例；计算同意接种疫苗的易感学生的比例；比较在接种第一剂或第二剂乙肝疫苗时提供水痘疫苗接种的情况下同意接种疫苗的易感学生的比例；并评估补种水痘免疫计划是否会影响同时进行的乙肝疫苗接种计划的疫苗接种覆盖率。
计算易感学生以及同意接种疫苗的易感学生家长的比例。比较两种免疫策略下同意接种疫苗的易感学生家长的比例：在接种第一剂或第二剂乙肝疫苗时接种水痘疫苗。进行逻辑回归分析以确定同意接种水痘疫苗与所收集的各种变量之间的可能关联。比较2000 - 2001年和2002 - 2003年两剂乙肝疫苗接种后的疫苗接种覆盖率。
在3856名注册学生中，3486名（90.4%）返回了同意书。在有信息可查的3272名学生中，441名（13.5%）易感，其中394名（89.3%）同意接种疫苗。2000 - 2001学年和2002 - 2003学年，学校在接种两剂乙肝疫苗后的疫苗接种覆盖率完全相同。
对四年级和五年级易感学生进行水痘疫苗接种并与同时开展的乙肝疫苗接种活动相结合，可以在不对乙肝疫苗接种计划产生负面影响的情况下进行。
