Research Article
Sleep Quality and Subjective Cognitive Decline among Older Adults: The Mediating Role of Anxiety/Depression and Worries
Table 5
Bootstrap result of serial mediation analysis for anxiety/depression and worries between sleep quality and SCD.
| | Paths | Self-reported SCD | Other reported SCD | | β (SE) | value | β (SE) | value |
| | Total effect | 0.241 (0.037) | ≤0.001 | 0.232 (0.039) | ≤0.001 | | Direct effect | 0.013 (0.024) | 0.599 | 0.029 (0.026) | 0.262 | | Total indirect effect | 0.229 (0.035) | — | 0.203 (0.039) | — | | Serial mediation model 1 | | | | | | Mediation effect ( ⟶ anxiety/depression ⟶ ) | 0.155 (0.031) | — | 0.128 (0.033) | — | | Mediation effect (X ⟶ worries ⟶ Y) | 0.045 (0.011) | — | 0.046 (0.012) | — | | Mediation effect ( ⟶ anxiety/depression ⟶ worries ⟶ ) | 0.029 (0.008) | — | 0.029 (0.009) | — | | Serial mediation model 2 | | | | | | Mediation effect ( ⟶ anxiety/depression ⟶ ) | −0.014 (0.022) | — | −0.012 (0.026) | — | | Mediation effect (X ⟶ worries ⟶ Y) | 0.074 (0.017) | — | 0.075 (0.017) | — | | Mediation effect ( ⟶ worries ⟶ anxiety/depression ⟶ ) | 0.169 (0.024) | — | 0.140 (0.028) | — |
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Note.aX = sleep quality; bY = SCD; = significant at the 0.05 level (two tailed). |
