Résumé :
|
[BDSP. Notice produite par INIST W0dnR0xH. Diffusion soumise à autorisation]. Context Immunization rates among low-income families have lagged behind those for the general community, with several possible barriers cited in the literature. Objective To evaluate the effect of an initiative aimed at improving immunization rates among low-income preschool children by imposing a sanction on families who failed to provide proof of up-to-date immunization status. Design and Setting Randomized, controlled before-after trial conducted from January 1,1993, through December 31,1996, in Muscogee County, Georgia. Participants A total of 2500 families with children aged 6 years or younger who received Aid to Families with Dependent Children assistance. Intervention Families in the intervention group (n=1500) were informed that receipt of the welfare benefit for any preschool-aged children was contingent on provision of proof of up-to-date immunization status at the beginning of welfare eligibility and, subsequently, semiannually or annually. Case families in the control group (n=1000) were encouraged to immunize their preschool children but were not informed of any aid sanctions nor did such sanctions apply to them. Main Outcome Measure Age-appropriate rates of 5 immunizations (measles-mumps-rubella ; poliovirus ; diphtheria and tetanus toxoids and pertussis ; Haemophilus influenzae type b ; and hepatitis B), based on examination (with family's written consent) of medical provider records, compared among intervention-group vs control-group families. (...)
|