The impact of outreach efforts in reaching underimmunized children in a Medicaid managed care practice.

BACKGROUND: National immunization standards call for all primary care providers to implement immunization tracking systems that include contacting families when children are overdue for vaccines. The restructuring of Medicaid systems toward managed care models with a greater emphasis on having defined medical homes for children presents opportunities to expand the use of immunization recall systems among low-income children. OBJECTIVE: To assess the impact of telephone, mail, and a combined approach to reaching underimmunized children enrolled in a hospital-based Medicaid managed care practice. DESIGN AND METHODS: All underimmunized children younger than 6 years who had been continuously enrolled in the hospital-based Medicaid managed care practice for 3 months were randomly assigned to 1 of 4 groups: (1) control group with no intervention, (2) telephone reminder group, (3) mail reminder group, or (4) sequential mail/telephone reminder group. After a 10-week follow-up, medical records and the hospital's computerized appointment scheduling system were reviewed to determine the effect of the outreach effort on appointments made, visits attended, immunizations received, and immunization status. RESULTS: Outreach efforts had a positive impact on the proportion of children immunized and on the resulting immunization coverage rates. The percentage of children receiving immunizations during the 10-week follow-up was 4.2% (3/71) for the control group, 16.7% (10/60) for the telephone reminder group, 19.0% (12/63) for the mail reminder group, and 25.7% (18/70) for the sequential mail/telephone reminder group. The percentage of children up-to-date for all immunizations at the end of the 10-week follow-up was 2.8% (2/71) for the control group, 13.3% (8/60) for the telephone reminder group, 14.3% (9/63) for the mail reminder group, and 17.1% (12/70) for the sequential mail/telephone reminder group. Forty-eight children were seen during follow-up without receiving all indicated vaccines. CONCLUSIONS: Outreach efforts were modestly successful in reaching underimmunized children in a Medicaid managed care practice, although the lack of accurate information on telephone numbers and addresses limited the effectiveness. Missed opportunities for immunization also reduced the impact of outreach on immunization coverage. Arch Pediatr Adolesc Med. 2000;154:1243-1247.

Inter-examiner and intra-examiner agreement for assessing sacroiliac anatomical landmarks using palpation and observation: pilot study.

Despite the paucity of research into the reliability of static palpation, it is still employed extensively as a diagnostic tool by manual medicine practitioners. This study tested the inter- and intra-examiner agreement of ten senior osteopathic students using static palpation on ten asymptomatic subjects. Four assessments of the posterior superior iliac spine (PSIS), sacral sulcus (SS), and the sacral inferior lateral angle (SILA) on every subject by all examiners resulted in 1200 assessments in total. Kappa (Kg) yielded intra-examiner agreement that ranged between less-than-chance to substantial for the SILA (Kg=-0.05 to 0.69; mean Kg=0.21), and slight to moderate for the PSIS (Kg=0.07 to 0.58; mean Kg=0.33) and the SS (Kg=0.02 to Kg=0.60; mean Kg=0.24), with 50% significant beyond the 0.05 level. Inter-examiner agreement was slight (PSIS Kg=0.04; SILA Kg=0.08; SS Kg=0.07) and significant at the 0.01 level. Intra-examiner agreement was greater than inter-examiner agreement, which was consistent with existing palpation reliability studies. The poor reliability of clinical tests involving palpation may be partially explained by error in landmark location.

Immunization status of children enrolled in a hospital-based medicaid managed care practice: the importance of the timing of vaccine administration.

OBJECTIVES: To evaluate the immunization status of children enrolled in a hospital-based Medicaid managed care practice and to assess the impact of the timing of vaccine administration on measured immunization rates. DESIGN AND METHODS: The medical records of all children between the ages of 19 and 35 months who were continuously enrolled in the Medicaid managed care practice for the last 6 months of 1996 were reviewed. Immunization status was determined for the following vaccines: diphtheria-tetanus-pertussis/diphtheria-tetanus-acellular pertussis (4 doses); Haemophilus influenzae type b (3 doses); poliovirus (3 doses); hepatitis B (3 doses); measles-mumps-rubella (1 dose); and overall for the basic series. Two assessment methods were used to determine the immunization status of the study children: (1) a count of all documented vaccines ("count"); and (2) only including vaccines that met minimal age and spacing intervals based on American Academy of Pediatrics and CDC recommendations ("interval assessment"). RESULTS: With the count method vaccine-specific immunization rates ranged from 88 to 95%, with overall coverage of 80% for the basic series. With the interval assessment method vaccine-specific immunization rates ranged from 74 to 92%, with overall coverage of 53% for the basic series. CONCLUSIONS: When all documented vaccines were included in the assessment, vaccine-specific immunization rates approached national goals, although overall coverage remained below 90% in this Medicaid managed care practice. The substantially lower immunization rates obtained by the interval assessment method demonstrate the importance of considering the issue of vaccine timing when interpreting immunization rates and the need for policies for revaccinating children who were immunized at less than recommended intervals. The results also have implications for provider education regarding the early administration of vaccines.