[The vaccination coverage in a cohort of children at 2 years of age from a health area].
OBJECTIVE
To estimate the vaccination coverage of two-years-old children in the health district of Gijón (Spain), the number of incomplete vaccinations and their causes. To evaluate the vaccination registry coverage.


METHODS
Descriptive cross-sectional survey. SITE. Primary health care.


METHODS
From the cohort born in 1989, living in the health district, a sample of 219 children was taken. Of these, criteria for inclusion in the study were met by 199 (90.8%), and the vaccination status was ascertained in 191 (87.2%).


RESULTS
The variables related with the vaccination coverage were studied through registrations or specific questionnaires. The full vaccination coverage with 3 doses of DTP, 1 dose of DT, 4 doses of VPO and one dose of MMR in the district was 92.5%. Estimating vaccination coverage using only our public registration systems, would lower it to 84.9. This result suggest that the public sector vaccination registry in Gijón under-registers immunizations. Vaccination coverage was 99.5% for first dose (3 months: DTP and VPO) and 93.5% for last doses (18 months: DT and VPO). For MMR it was 94.5%.


CONCLUSIONS
Our data suggests there is a high vaccination coverage in the Gijón area. We consider population's questionnaires a satisfactory way to estimate vaccination coverage, and besides to evaluate the validity of the usual registers to use them as information resource.
Kindelán Recarte
M
M
Servicios Sociales, Principado de Asturias.
García Polanco
D
D
García González
J U
JU
Abal Ferrer
F
F
D016009:Chi-Square Distribution; D002675:Child, Preschool; D015331:Cohort Studies; D016001:Confidence Intervals; D005260:Female; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D008297:Male; D012042:Registries / Q000706:statistics & numerical data; D013030:Spain / Q000453:epidemiology; D014611:Vaccination / Q000706:statistics & numerical data
Estudio de la cobertura vacunal en una cohorte de niños de una área de salud al cumplir los dos años.