Predictors of Sleep Quality in Patients Undergoing Open-Heart Surgery: A Hierarchical Regression Analysis A Short Running Title: Predictors of sleep after open-heart surgery
This study of 157 open-heart surgery patients in a cardiovascular ICU found that sleep quality is primarily predicted by symptom burden (pain and fatigue) and environmental stressors rather than demographic or clinical characteristics, explaining 35.1% of the variance in sleep outcomes.