The Chain Mediating Effect of Sleep Quality and Family Resilience Between Depressive Mood and Treatment Compliance in Continuous Blood Purification Patients.
Sleep quality and family resilience function as chain mediators in the relationship between depressive mood and treatment compliance in continuous blood purification patients, with the total indirect effect accounting for 41.74% of the total effect.
Key Findings
Results
Depressive mood was significantly associated with poorer sleep quality in CBP patients.
Cross-sectional study of 195 patients with CBP conducted from May 2024 to May 2025.
Standardized regression coefficient β = 0.521, p < 0.01.
Mean SDS score was 52.64 ± 5.82, indicating a moderate level of depressive symptoms.
Mean PSQI score was 10.55 ± 4.08, indicating poor sleep quality (scores above 5 are generally considered poor).
Results
Depressive mood was significantly associated with lower family resilience in CBP patients.
Standardized regression coefficient β = -0.391, p < 0.01.
Mean FRAS-C (Family Resilience Assessment Scale-Chinese version) score was 87.09 ± 11.24.
The negative coefficient indicates that higher depressive mood scores corresponded to lower family resilience scores.
Assessment was conducted using the Family Resilience Assessment Scale-Chinese version (FRAS-C).
Results
Poorer sleep quality and lower family resilience were each independently associated with lower treatment adherence.
Sleep quality was associated with treatment adherence: β = -0.253, p < 0.01.
Family resilience was associated with treatment adherence: β = 0.192, p < 0.01.
Mean DTAS (Dialysis Treatment Adherence Scale) score was 70.95 ± 13.25.
Both associations remained significant after adjustment for age.
Results
Sleep quality and family resilience together served as significant mediators between depressive mood and treatment compliance.
The total indirect effect accounted for 41.74% of the total effect of depressive mood on treatment compliance.
Bootstrap mediation analyses were performed using PROCESS Macro Model 6.
The model was tested using Pearson correlation, multiple linear regression, and bootstrap mediation analyses.
The model remained significant after adjusting for age as a covariate.
Results
The specific chain mediation path from depression through sleep quality through family resilience to treatment adherence was significant but accounted for a small proportion of the total effect.
The chain path (depression → sleep quality → family resilience → treatment adherence) contributed 5.06% of the total effect.
This sequential chain pathway represents one of multiple indirect pathways identified in the model.
PROCESS Macro Model 6 was used to test this chain mediation model.
The finding suggests that poor sleep quality may partially reduce family resilience, which then further reduces treatment adherence.
Results
Patients with CBP demonstrated high levels of depressive symptoms, poor sleep quality, and suboptimal treatment adherence as measured by self-report scales.
Mean SDS score of 52.64 ± 5.82, indicative of significant depressive mood burden in this population.
Mean PSQI score of 10.55 ± 4.08, reflecting poor sleep quality on average.
Mean DTAS score of 70.95 ± 13.25, reflecting the level of self-reported treatment adherence.
The authors note that treatment adherence findings require confirmation using adherence measures validated specifically for the CBP population.
What This Means
This research suggests that among patients receiving continuous blood purification (CBP) — an intensive kidney treatment — depression, poor sleep, weakened family support systems, and reduced willingness to follow treatment plans are all closely linked. The study of 195 CBP patients found that those with more depressive symptoms tended to sleep worse and reported lower levels of family resilience (the ability of a family to cope and adapt together). Both of these factors were in turn associated with worse treatment compliance, meaning patients were less likely to follow their prescribed treatment regimens.
The study found that the combined indirect pathways through sleep quality and family resilience explained about 42% of the relationship between depression and treatment non-compliance. A specific sequential chain — where depression worsens sleep, poor sleep then undermines family resilience, and reduced family resilience then lowers compliance — also proved statistically significant, though it accounted for a smaller portion (about 5%) of the overall effect. This suggests that the connections between these factors are complex and operate through multiple pathways simultaneously.
This research suggests that interventions targeting sleep quality and family resilience — not just depression itself — might help improve treatment adherence in CBP patients. However, the authors caution that this was a cross-sectional study (meaning it measured everything at one point in time and cannot prove cause and effect), and that the treatment adherence measure used was not specifically validated for CBP patients. Future research using longitudinal designs and CBP-specific tools would be needed to confirm these findings and guide clinical practice.
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Dong W, Zhao X, Gao Q. (2026). The Chain Mediating Effect of Sleep Quality and Family Resilience Between Depressive Mood and Treatment Compliance in Continuous Blood Purification Patients.. Actas espanolas de psiquiatria. https://doi.org/10.62641/aep.v54i4.2183