Underimmunization in Chicago children who dropped out of WIC
| Autor: | Margaret M. Cortese, Pamela S. Diaz, Usha Samala, William S. Paul, Thomasine Johnson-Partlow, Richard C. Dicker, John Z Mennone, Edward F Mihalek, Michael J Matuck |
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| Rok vydání: | 2004 |
| Předmět: |
Pediatrics
medicine.medical_specialty Epidemiology Haemophilus influenzae type Maternal-Child Health Centers Cohort Studies Drop out medicine Humans Bacterial Capsules Diphtheria-Tetanus-Pertussis Vaccine Haemophilus Vaccines Chicago business.industry Polysaccharides Bacterial Public Health Environmental and Occupational Health Infant Retrospective cohort study Confidence interval Home visits Relative risk Child Preschool Cohort Immunization Health Services Research business Measles-Mumps-Rubella Vaccine Cohort study |
| Zdroj: | American journal of preventive medicine. 26(1) |
| ISSN: | 0749-3797 |
| Popis: | Background The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) serves a large proportion of Chicago infants, but some discontinue participation before age 1 year. To determine if children who remained active at WIC immunization-linked sites after their first birthday were more likely to be immunized by ages 19 and 25 months than those who dropped out, a retrospective cohort study was conducted. Methods Four Chicago WIC sites that used monthly voucher pick-up were chosen. Children born from July 1, 1997 to September 30, 1997 who attended these sites were eligible (N=1142). The cohort was divided into two groups: (1) active group (46%), who had a WIC visit on or after their first birthday; and (2) inactive group (54%), who had their last WIC visit before their first birthday. Children were enrolled through home visits. Results The records for 200 children were analyzed. By age 19 months, 65 (84%) of 77 active children had received one dose of measles–mumps–rubella vaccine (MMR), compared to 82 (67%) of 123 inactive children (risk ratio [RR]=1.3; 95% confidence interval [CI], 1.1− 1.5). By age 25 months, 64 (83%) active children had received four doses of diphtheria–tetanus–pertussis vaccine (DTP), one MMR, and three doses of Haemophilus influenzae type b vaccine (Hib), compared with 64 (52%) inactive children (RR=1.6; 95% CI, 1.3−2.0). Conclusions In this cohort, children active in WIC after their first birthday were more likely to be immunized by ages 19 and 25 months, compared with those who were no longer active. Chicago children who drop out of WIC may represent those at highest risk for underimmunization and may require special strategies to improve coverage. |
| Databáze: | OpenAIRE |
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