Indian Coalition for Control of Iodine Deficiency Disorders, New Delhi, India.
J Trop Pediatr. 2012 Apr;58(2):133-8. doi: 10.1093/tropej/fmr059. Epub 2011 Jul 8.
The current study was undertaken to estimate the delay in vaccination for National Immunization Schedule vaccines in under-five children and explore causes for this delay.
The study was carried out in Ballabgarh Health and Demographic Surveillance Site in Northern India. It is a secondary data set-based study of children born between 1991 and 2004. Causes for delay in vaccination were explored by informal discussions.
Total of 25 517 children were included in the analysis. Vaccination coverage at 1 year of age was high for all National immunization schedule vaccines (78.7% for measles to 97.4% for OPV-1). Children for delayed vaccination ranged from 15.9% (95% CI 15.4-16.3) for OPV booster to 83.5% (95% CI 83.1-83.9) for OPV-3. Non-availability of children was identified as important determinants of the delay.
We conclude that focus on 'quantity' in vaccination (high vaccination coverage) needs to be supplemented with quality of vaccination (in-time vaccination).
本研究旨在估计五岁以下儿童国家免疫计划疫苗接种的延迟情况，并探讨导致这种延迟的原因。
该研究在印度北部巴拉伯格尔健康和人口监测点进行。这是一项基于二次数据的研究，研究对象为 1991 年至 2004 年间出生的儿童。通过非正式讨论探讨了疫苗接种延迟的原因。
共有 25517 名儿童纳入分析。所有国家免疫计划疫苗（麻疹疫苗接种率为 78.7%，OPV-1 疫苗接种率为 97.4%）在一岁时的接种覆盖率较高。延迟接种的儿童比例从口服脊髓灰质炎疫苗加强剂的 15.9%（95%可信区间 15.4-16.3）到第三剂口服脊髓灰质炎疫苗的 83.5%（95%可信区间 83.1-83.9）不等。儿童无法获得疫苗是导致延迟的重要决定因素。
我们得出结论，接种疫苗的重点需要从“数量”（高接种覆盖率）扩展到“质量”（及时接种）。
