Lay Advisor Interventions in Rural Populations: A Systematic Review and Meta-analysis

Effect of Stanford Youth Diabetes Coaches' Program on Youth and Adults in Diverse Communities

The Stanford Youth Diabetes Coaches' Program (SYDCP) trains high school students to become diabetes coaches for friends and adult family members. The objective of this study was to assess effects of SYDCP participation on youth and adults from a rural and urban underserved high school community. We used a mixed-methods approach. Patient-Reported Outcomes Measurement Information System (PROMIS) measures for Pediatric Sense of Meaning and Purpose were measured in high school students. PROMIS Adult Global Health and Self-Efficacy was measured in coached adults. Paired t tests compared pre- and postintervention and 6-month follow-up scores. Thematic analysis was used to analyze focus group discussion of adults. Twenty-five students participated, 15 students coached adults with diabetes or prediabetes. Students' sense of meaning and purpose significantly improved postintervention compared to preintervention. Diet and physical activity behaviors improved. Adolescent-adult relationships mediated participation benefits. Our study showed SYDCP improved adolescents' sense of meaning and purpose. In addition, youth and adult relatedness led to improved health behaviors. These findings have important implications, as a sense of purpose and youth-adult connectedness are associated with health behaviors and psychological well-being. Further larger studies of health education programs that engage related youth-adult dyads and assess long-term behaviors and health outcomes are needed.

Long-term effects of a lay health advisor intervention on immigrant children's dental caries and maternal preventive behaviour: A randomized controlled trial

OBJECTIVES

An oral health disparity exists between native and immigrant children in Taiwan. This study evaluated the long-term effectiveness of a lay health advisor (LHA) intervention on immigrant children's dental caries and maternal preventive behaviours.

METHODS

Fifty-one immigrant mother-child pairs were randomly assigned to LHA intervention (n = 23) and control (n = 28) groups. Mothers in the LHA group received a four-chapter one-on-one lesson plan, which included dental caries-related knowledge, brushing techniques, caries prevention and free preventive services, from the LHA over 4 weeks. Mothers in the control group received only a health brochure. Baseline and 1-week, 2-month, and 8-month follow-up information was collected using dental examinations and questionnaires.

RESULTS

The mean ages of the children in the LHA and control groups were 4.0 ± 1.4 and 4.2 ± 1.5, respectively. The decayed, missing due to caries, filled teeth (dmft) index in the LHA and control groups was 4.8 ± 6.0 and 5.4 ± 5.4, respectively, at baseline. At the 8-month postintervention follow-up, the number of filled teeth (ft) in the LHA group was higher than that in the control group (β = 8.3, P = .033). The effect size (ES) demonstrated an upward trend at 1-week, 2-month and 8-month follow-ups in ft (ES = 0.21, 0.50 and 0.59, respectively) and a decrease in the number of decayed teeth (dt) (ES = 0.30, 0.43 and 0.57, respectively). The mothers in the LHA group were observed to be 10.9 times more likely than control mothers to assist their children in toothbrushing for 3 min at the 1-week follow-up (95% CI = 1.98-59.40, P = .006).

CONCLUSIONS

The LHA intervention strategy had positive effects on the immigrant children's new dt and ft and on maternal preventive behaviour, such as assisting their children in toothbrushing.