Self-reported physical activity and lack of association with health-related quality of life in a pediatric solid-organ transplant population.

BACKGROUND: Physical activity (PA) has been shown to have benefits, including improving health-related quality of life (HRQOL). However, there are few and conflicting studies assessing PA and its relationship with HRQOL in a pediatric solid-organ transplant (SOT) population. The aim of this study was to assess whether overall HRQOL was associated with PA and to determine whether that association was independent of other baseline and contemporaneous clinical and demographic indicators. METHODS: A retrospective cross-sectional review was performed on 55 pediatric transplant patients (13 heart, 27 kidney, and 15 liver transplant). PA was measured by PAQ-C/PAQ-A, and HRQOL was measured using PedsQL. Demographics, baseline, and contemporaneous data were collected. RESULTS: There were no significant differences in baseline and contemporaneous characteristics between heart, kidney, and liver transplant recipients. SOT recipients were 15.0 (11.0-18.0) years old at completion of surveys. Median PAQ score was 2.3 (1.6-3.2), PedsQL total score was 77 (65-91), and PedsQL physical functioning score was 88 (72-97). The PedsQL total score was not significantly associated with PAQ score. The PAQ score was significantly associated with physical functioning subscore of the PedsQL (r = 0.37, p < 0.01). Higher physical functioning score was associated with time since transplant (r = 0.29, p = 0.031). CONCLUSION: Our SOT cohort has a HRQOL similar to other chronic conditions and higher than previous reported HRQOL in pediatric SOT populations. Higher levels of PA and longer time since transplant are associated with higher physical functioning scores.

Post-traumatic stress as a determinant of quality of life in pediatric solid-organ transplant recipients.

Living with end-stage organ failure is associated with an accumulation of traumatic medical events, and despite recovery after solid-organ transplantation (SOT), many children continue to exhibit lower quality of life (QOL). Few studies have examined the relationship between post-traumatic stress disorder (PTSD) and QOL among pediatric SOT recipients. We conducted a retrospective, cross-sectional review of 61 pediatric SOT recipients (12 heart, 30 kidney, and 19 liver) to evaluate the association of PTSD with self-reported QOL. PTSD was measured by the Child Trauma Screening Questionnaire (CTSQ), and QOL was measured using the PedsQL and PedsQL Transplant Module (PedsQL-TM) surveys. Demographics, baseline, and contemporaneous factors were tested for independent association. SOT recipients were 15.2 (12.1-17.6) years old at survey completion. Median CTSQ score was 2 (1-3), highest in kidney recipients, and 13% were identified as high risk for PTSD. Median PedsQL score was 83 (70-91) and significantly associated with the CTSQ score (r = -.68, p < .001). Median PedsQL Transplant Module score was 89 (83-95) and similarly associated with the CTSQ score (r = -.64, p < .001). Age at time of surveys and presence of any disability were also independently associated with PedsQL and PedsQL-TM, respectively. When adjusted for Emotional Functioning, CTSQ remained associated with PedsQL subscores (r = -.65, p < .001). Trauma symptoms are a major modifiable risk factor for lower self-perceived QOL and represent a potentially important target for post-transplant rehabilitation. Additional research is needed to understand the root contributors to PTSD and potential treatments in this population.