Enforcement Associated With Higher School-Reported Immunization Rates

Kylie J. Hall, Molly A. Howell, Rick J. Jansen, Paul J. Carson

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Introduction North Dakota's school-reported kindergarten immunization rates were among the lowest in the U.S. during the 2015–2016 school year. Ninety percent of kindergartners were fully immunized in accordance with state requirements, 3% had an exemption, and as many as 7% were noncompliant. School enforcement of immunization requirements has been noted as variable. This study sought to better understand the relationship between school-reported immunization rates and the enforcement of immunization requirements. Methods Kindergarten immunization rates were compared between schools annually enforcing immunization requirements to the point of excluding noncompliant children and schools not enforcing. In addition, immunization rates were assessed after an educational intervention that led some school districts to change their enforcement policies during the 2015–2016 school year. Analyses were completed in 2016 and 2017. Results Kindergarten immunization rates were significantly higher in schools that annually enforced compared with schools that did not enforce (p≤0.001, all vaccines; difference between means: diphtheria−tetanus−attenuated pertussis=7.5% [95% CI=3.9%, 11.1%]; polio=6.2% [95% CI=3.3%, 9.1%]; measles, mumps, and rubella=7% [95% CI=3.5%, 10.5%]; hepatitis B=3.7% [95% CI=1.5%, 5.9%]; and varicella=6.9% [95% CI=3.4%, 10.4%]). School districts that began enforcing saw a significant increase in vaccination rates (diphtheria−tetanus−attenuated pertussis=6% [95% CI=2%, 11%] and measles, mumps, and rubella=7% [95% CI=3%, 11%]). Enforcement in newly enforcing districts led to a large decrease in the number of noncompliant students and did not lead to significant increases in exemption rates. Conclusions In North Dakota, lack of school enforcement is strongly associated with lower immunization rates and a large noncompliant population. Addressing noncompliance through school enforcement could significantly increase school-reported immunization rates.

Original languageEnglish (US)
Pages (from-to)892-897
Number of pages6
JournalAmerican Journal of Preventive Medicine
Volume53
Issue number6
DOIs
StatePublished - Dec 2017

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Immunization
Mumps
Rubella
Whooping Cough
Measles
Chickenpox
Poliomyelitis
Hepatitis B
Vaccination
Vaccines
Students

ASJC Scopus subject areas

  • Epidemiology
  • Public Health, Environmental and Occupational Health

Cite this

Enforcement Associated With Higher School-Reported Immunization Rates. / Hall, Kylie J.; Howell, Molly A.; Jansen, Rick J.; Carson, Paul J.

In: American Journal of Preventive Medicine, Vol. 53, No. 6, 12.2017, p. 892-897.

Research output: Contribution to journalArticle

Hall, Kylie J. ; Howell, Molly A. ; Jansen, Rick J. ; Carson, Paul J. / Enforcement Associated With Higher School-Reported Immunization Rates. In: American Journal of Preventive Medicine. 2017 ; Vol. 53, No. 6. pp. 892-897.
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title = "Enforcement Associated With Higher School-Reported Immunization Rates",
abstract = "Introduction North Dakota's school-reported kindergarten immunization rates were among the lowest in the U.S. during the 2015–2016 school year. Ninety percent of kindergartners were fully immunized in accordance with state requirements, 3{\%} had an exemption, and as many as 7{\%} were noncompliant. School enforcement of immunization requirements has been noted as variable. This study sought to better understand the relationship between school-reported immunization rates and the enforcement of immunization requirements. Methods Kindergarten immunization rates were compared between schools annually enforcing immunization requirements to the point of excluding noncompliant children and schools not enforcing. In addition, immunization rates were assessed after an educational intervention that led some school districts to change their enforcement policies during the 2015–2016 school year. Analyses were completed in 2016 and 2017. Results Kindergarten immunization rates were significantly higher in schools that annually enforced compared with schools that did not enforce (p≤0.001, all vaccines; difference between means: diphtheria−tetanus−attenuated pertussis=7.5{\%} [95{\%} CI=3.9{\%}, 11.1{\%}]; polio=6.2{\%} [95{\%} CI=3.3{\%}, 9.1{\%}]; measles, mumps, and rubella=7{\%} [95{\%} CI=3.5{\%}, 10.5{\%}]; hepatitis B=3.7{\%} [95{\%} CI=1.5{\%}, 5.9{\%}]; and varicella=6.9{\%} [95{\%} CI=3.4{\%}, 10.4{\%}]). School districts that began enforcing saw a significant increase in vaccination rates (diphtheria−tetanus−attenuated pertussis=6{\%} [95{\%} CI=2{\%}, 11{\%}] and measles, mumps, and rubella=7{\%} [95{\%} CI=3{\%}, 11{\%}]). Enforcement in newly enforcing districts led to a large decrease in the number of noncompliant students and did not lead to significant increases in exemption rates. Conclusions In North Dakota, lack of school enforcement is strongly associated with lower immunization rates and a large noncompliant population. Addressing noncompliance through school enforcement could significantly increase school-reported immunization rates.",
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N2 - Introduction North Dakota's school-reported kindergarten immunization rates were among the lowest in the U.S. during the 2015–2016 school year. Ninety percent of kindergartners were fully immunized in accordance with state requirements, 3% had an exemption, and as many as 7% were noncompliant. School enforcement of immunization requirements has been noted as variable. This study sought to better understand the relationship between school-reported immunization rates and the enforcement of immunization requirements. Methods Kindergarten immunization rates were compared between schools annually enforcing immunization requirements to the point of excluding noncompliant children and schools not enforcing. In addition, immunization rates were assessed after an educational intervention that led some school districts to change their enforcement policies during the 2015–2016 school year. Analyses were completed in 2016 and 2017. Results Kindergarten immunization rates were significantly higher in schools that annually enforced compared with schools that did not enforce (p≤0.001, all vaccines; difference between means: diphtheria−tetanus−attenuated pertussis=7.5% [95% CI=3.9%, 11.1%]; polio=6.2% [95% CI=3.3%, 9.1%]; measles, mumps, and rubella=7% [95% CI=3.5%, 10.5%]; hepatitis B=3.7% [95% CI=1.5%, 5.9%]; and varicella=6.9% [95% CI=3.4%, 10.4%]). School districts that began enforcing saw a significant increase in vaccination rates (diphtheria−tetanus−attenuated pertussis=6% [95% CI=2%, 11%] and measles, mumps, and rubella=7% [95% CI=3%, 11%]). Enforcement in newly enforcing districts led to a large decrease in the number of noncompliant students and did not lead to significant increases in exemption rates. Conclusions In North Dakota, lack of school enforcement is strongly associated with lower immunization rates and a large noncompliant population. Addressing noncompliance through school enforcement could significantly increase school-reported immunization rates.

AB - Introduction North Dakota's school-reported kindergarten immunization rates were among the lowest in the U.S. during the 2015–2016 school year. Ninety percent of kindergartners were fully immunized in accordance with state requirements, 3% had an exemption, and as many as 7% were noncompliant. School enforcement of immunization requirements has been noted as variable. This study sought to better understand the relationship between school-reported immunization rates and the enforcement of immunization requirements. Methods Kindergarten immunization rates were compared between schools annually enforcing immunization requirements to the point of excluding noncompliant children and schools not enforcing. In addition, immunization rates were assessed after an educational intervention that led some school districts to change their enforcement policies during the 2015–2016 school year. Analyses were completed in 2016 and 2017. Results Kindergarten immunization rates were significantly higher in schools that annually enforced compared with schools that did not enforce (p≤0.001, all vaccines; difference between means: diphtheria−tetanus−attenuated pertussis=7.5% [95% CI=3.9%, 11.1%]; polio=6.2% [95% CI=3.3%, 9.1%]; measles, mumps, and rubella=7% [95% CI=3.5%, 10.5%]; hepatitis B=3.7% [95% CI=1.5%, 5.9%]; and varicella=6.9% [95% CI=3.4%, 10.4%]). School districts that began enforcing saw a significant increase in vaccination rates (diphtheria−tetanus−attenuated pertussis=6% [95% CI=2%, 11%] and measles, mumps, and rubella=7% [95% CI=3%, 11%]). Enforcement in newly enforcing districts led to a large decrease in the number of noncompliant students and did not lead to significant increases in exemption rates. Conclusions In North Dakota, lack of school enforcement is strongly associated with lower immunization rates and a large noncompliant population. Addressing noncompliance through school enforcement could significantly increase school-reported immunization rates.

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