Methodological changes to improve retention: Results from two pediatric cognitive behavioral therapy studies

OBJECTIVE

Retention is challenging in clinical research with pediatric populations. The retention obstacles that are experienced in adult samples are compounded because child samples depend on caregiver support and engagement. The present paper describes retention improvements following protocol adaptations across a pair of cognitive behavioral pilot studies for nightmare sufferers aged 6-17.

METHODS

Study 1 (N = 20) focused retention efforts on rapport and engagement, flexible scheduling, treatment location choice, and incentives. Study 2 (N = 31) sought to increase retention by improving continuity of care, increasing scheduling flexibility, reducing participant time and effort, and increasing choice and attractiveness of incentives.

RESULTS

Only 13 participants (65%) were retained in Study 1; n = 6 (54.5%) treatment and n = 7 (77.78%) waitlist. In contrast, 29 participants (93.5%) were retained in Study 2; n = 15 (93.8%) treatment and n = 14 (93.3%) waitlist.

CONCLUSION

We conclude that asking for and responding to patient feedback to assess all perceived barriers and burdens for participants is essential to ensure that benefits exceed effort. Allowing choices in size and frequency of incentives, as well as improving continuity of care, and reducing session length even while increasing number of sessions, were noted improvements in Study 2.

A systematic review of Nightmare prevalence in children

The purpose of this narrative review was to describe prevalence rates of nightmares and nightmare disorder in school-aged youth according to sample characteristics and methods used to assess nightmares. We searched PsychINFO, PubMed, and CINAHL databases to identify empirical peer-reviewed articles and grey literature published between 2001 and 2021. Sixty-nine studies from 23 countries were included. The prevalence of nightmares was between 1% and 11% in the past week and 25% to 35% in the past month in pediatric developmental samples and between 27% and 57% in the past week and 18%-22% in the past month in psychiatric samples. The prevalence of nightmare disorder was approximately between 3% and 6% in pediatric developmental samples and 10%-12% in psychiatric samples. Nightmare prevalence peaks between ages 10 and 14 then decreases with older age. Generally, prevalence was higher in girls than boys, and one study suggested gender divergence started around age 14. Children's self-reports were higher than parent reports, except in samples with comorbid psychiatric problems where there was more parent-child agreement. Inconsistencies in nightmare definitions and measurement were observed across the literature and indicate a need for standardized measurement of nightmares.