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Volume matters: physician practice characteristics and immunization coverage among young children insured through a universal health plan.
Pediatrics. 2006 Mar; 117(3):595-602.Ped

Abstract

OBJECTIVES

We studied the association between immunization coverage for a cohort of 2-year-old children covered by a universal health insurance plan and pediatric provider and other health services characteristics.

METHODS

We assembled a cohort of 101,570 infants born in urban areas in Ontario, Canada, between July 1, 1997, and June 31, 1998. Children were considered to have up-to-date (UTD) immunization coverage if they had > or =5 immunizations by 2 years of age, ie, the recommended 3 doses and 1 booster of diphtheria-polio-tetanus-pertussis/Haemophilus influenzae type b vaccine and 1 dose of measles-mumps-rubella vaccine. Provider practice characteristics were derived from outpatient billing records, and 1996 census data were used to derive neighborhood income quintiles. The association between UTD immunization status and provider characteristics was assessed with multilevel regression models, controlling for patient characteristics.

RESULTS

Overall, the rate of complete UTD immunization coverage was low (66.3%) despite a large number of primary care visits (median: 19 visits). Children whose usual provider had a low volume of pediatric primary care were less than one half as likely to be UTD. Other factors associated with not being UTD included very low continuity of care, low continuity of care, and usual provider in practice for <5 years. With adjustment for patient and provider characteristics, there was no difference in immunization coverage for general practitioners versus pediatricians. Children from low-income neighborhoods were less likely to be UTD.

CONCLUSIONS

Despite universal access to primary care services, rates of complete immunization coverage among 2-year-old children in Ontario are low. Because visit rates are high, primary care reform should include interventions directed at provider immunization practices to reduce missed opportunities.

Authors+Show Affiliations

Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada. astrid.guttmann@ices.on.caNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16510636

Citation

Guttmann, Astrid, et al. "Volume Matters: Physician Practice Characteristics and Immunization Coverage Among Young Children Insured Through a Universal Health Plan." Pediatrics, vol. 117, no. 3, 2006, pp. 595-602.
Guttmann A, Manuel D, Dick PT, et al. Volume matters: physician practice characteristics and immunization coverage among young children insured through a universal health plan. Pediatrics. 2006;117(3):595-602.
Guttmann, A., Manuel, D., Dick, P. T., To, T., Lam, K., & Stukel, T. A. (2006). Volume matters: physician practice characteristics and immunization coverage among young children insured through a universal health plan. Pediatrics, 117(3), 595-602.
Guttmann A, et al. Volume Matters: Physician Practice Characteristics and Immunization Coverage Among Young Children Insured Through a Universal Health Plan. Pediatrics. 2006;117(3):595-602. PubMed PMID: 16510636.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Volume matters: physician practice characteristics and immunization coverage among young children insured through a universal health plan. AU - Guttmann,Astrid, AU - Manuel,Doug, AU - Dick,Paul T, AU - To,Teresa, AU - Lam,Kelvin, AU - Stukel,Therese A, PY - 2006/3/3/pubmed PY - 2006/3/23/medline PY - 2006/3/3/entrez SP - 595 EP - 602 JF - Pediatrics JO - Pediatrics VL - 117 IS - 3 N2 - OBJECTIVES: We studied the association between immunization coverage for a cohort of 2-year-old children covered by a universal health insurance plan and pediatric provider and other health services characteristics. METHODS: We assembled a cohort of 101,570 infants born in urban areas in Ontario, Canada, between July 1, 1997, and June 31, 1998. Children were considered to have up-to-date (UTD) immunization coverage if they had > or =5 immunizations by 2 years of age, ie, the recommended 3 doses and 1 booster of diphtheria-polio-tetanus-pertussis/Haemophilus influenzae type b vaccine and 1 dose of measles-mumps-rubella vaccine. Provider practice characteristics were derived from outpatient billing records, and 1996 census data were used to derive neighborhood income quintiles. The association between UTD immunization status and provider characteristics was assessed with multilevel regression models, controlling for patient characteristics. RESULTS: Overall, the rate of complete UTD immunization coverage was low (66.3%) despite a large number of primary care visits (median: 19 visits). Children whose usual provider had a low volume of pediatric primary care were less than one half as likely to be UTD. Other factors associated with not being UTD included very low continuity of care, low continuity of care, and usual provider in practice for <5 years. With adjustment for patient and provider characteristics, there was no difference in immunization coverage for general practitioners versus pediatricians. Children from low-income neighborhoods were less likely to be UTD. CONCLUSIONS: Despite universal access to primary care services, rates of complete immunization coverage among 2-year-old children in Ontario are low. Because visit rates are high, primary care reform should include interventions directed at provider immunization practices to reduce missed opportunities. SN - 1098-4275 UR - https://www.unboundmedicine.com/medline/citation/16510636/Volume_matters:_physician_practice_characteristics_and_immunization_coverage_among_young_children_insured_through_a_universal_health_plan_ L2 - http://pediatrics.aappublications.org/cgi/pmidlookup?view=long&amp;pmid=16510636 DB - PRIME DP - Unbound Medicine ER -