Key result
Poorer sleep quality is moderately associated with worse self-care in patients with chronic HF.
Why the study?
Sleep quality is a critical but understudied factor in heart failure self-care.
Cross-Sectional (n=309)
No
Effect estimate: r = -0.51
p-value: p=< 0.001
Poor sleep quality is significantly and independently associated with worse self-care behaviors in heart failure patients, indicating it may be a key modifiable target for comprehensive HF management.
Sleep quality was associated with self-care in HF; hypothesis-generating for interventions, prospective trials needed.
Sleep quality is a critical but understudied factor in heart failure (HF) self‑care. This cross‑sectional study investigated the association between sleep quality and self‑care behaviours in 309 patients with chronic heart failure hospitalized in cardiology wards at Imam Khomeini Hospital, Ardabil, Iran, in 2025. Data were collected using the Hippocratic Heart Failure Self-Care Scale (HHFSCS) and the Sleep Quality Scale for Coronary Care Patients (SQ-CC). Poor sleep quality was significantly associated with lower self-care scores ( r = − 0.51, p < 0.001). Hierarchical regression showed that adding sleep quality explained an additional 10.1% of variance in self-care (ΔR² = 0.101, p < 0.001) beyond demographic and clinical factors (overall R² = 0.521). Sleep quality is significantly associated with self-care in heart failure patients. Although the cross-sectional design limits causal inference, these findings suggest that sleep quality may be a modifiable factor worth considering in future interventions designed to improve self-care.
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Valizadeh et al. (2026) conducted a cross-sectional in Heart Failure (n=309). Sleep quality vs. Better sleep quality / Unexposed was evaluated on Association between sleep quality and self-care scores (r = -0.51, p=< 0.001). Poorer sleep quality was significantly associated with lower self-care scores in patients with chronic heart failure (r = -0.51, p < 0.001).
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