Vaccine shot-limiting: Estimating the prevalence, indicators, and impact on vaccination status — Michigan, 2012
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Vaccine shot-limiting: Estimating the prevalence, indicators, and impact on vaccination status — Michigan, 2012

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  • English
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    Details:

    • Alternative Title:
      Vaccine
    • Publisher's site:
      http://dx.doi.org/10.1016/j.vaccine.2017.01.013
    • Personal Author:
    • Description:
      Background

      Concerns regarding vaccine safety and pain have prompted certain parents to limit the number of shots their child receives per visit. We estimated the prevalence of shot-limited children in Michigan, described their characteristics, assessed whether shot-limited children were up-to-date on recommended vaccinations, and investigated possible intervention points for vaccination education.

      Methods

      We analyzed vaccination registry and birth record data of children born in Michigan during 2012 who had ⩾2 vaccination visits, with ⩾1 visits after age 5 months. Shot-limited was defined as receiving ≤2 shots at all visits through age 24 months. Nonlimited children received >2 shots at ⩾1 visits. Up-to-date vaccination was based on receipt of a seven-vaccine series and was determined at ages 24 months and 35 months. Risk ratios (RR) were calculated using risk regression.

      Results

      Of 101,443 children, a total of 2,967 (3%) children were shot-limited. Mothers of shot-limited children were more likely to be white (RR: 1.2; 95% confidence interval [CI]: 1.2–1.2), college graduate (RR: 1.9; 95% CI: 1.9–2.0), and married (RR: 1.5; 95% CI: 1.5–1.5). Compared with nonlimited children, shot-limited children were more likely to be born in a nonhospital setting (RR: 11.7; 95% CI: 9.4–14.6) and have a midwife attendant (RR: 1.9; 95% CI: 1.7–2.1). Shot-limited children were less likely to be up-to-date on recommended vaccinations (RR: 0.2; 95% CI: 0.2–0.3); this association was stronger for those with a midwife birth attendant (RR: 0.1; 95% CI: 0.1–0.2) rather than a medical doctor (RR: 0.3; 95% CI: 0.2–0.3).

      Conclusions

      Shot-limited children are less likely to be up-to-date on vaccinations, possibly leading to increased risk for vaccine-preventable diseases. This association was stronger for those with a midwife birth attendant. This analysis should prompt targeted education, such as to midwives, concerning risks associated with shot-limiting behavior.

    • Subject:
    • Source:
      Vaccine. 35(7):1018-1023
    • Pubmed ID:
      28108229
    • Pubmed Central ID:
      PMC5405707
    • Document Type:
      Journal Article
    • Funding:
      CC999999/Intramural CDC HHS/United States
    • Place as Subject:
      Michigan
    • Collection(s):
      CDC Public Access
    • Main Document Checksum:
    • File Type:

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