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Purpose <p>This study analyzed the relationship between different levels of sleep difficulties and physical, mental, and emotional variables in long-term breast cancer survivors (LTBCSs), and identified predictors of sleep-related complaints.</p> Methods <p>Eighty LTBCSs participated in this cross-sectional study. Sleep difficulties were assessed via item 11 of the EORTC QLQ-C30, classifying participants into two groups: low (n = 44; ≤ 26.29) and high sleep difficulties (n = 36; ≥ 26.30). Additional measures included the EORTC QLQ-BR23, Piper Fatigue Scale, Visual Analog Scale, Brief Pain Inventory, International Fitness Scale, Minnesota Leisure Time Physical Activity questionnaire, and the Scale for Mood Assessment. Statistical analyses comprised ANOVA, Mann–Whitney U, Chi-square, correlation, and multiple regression; effect sizes were calculated using Cohen’s <i>d</i>.</p> Results <p>Fifty-five percent of LTBCSs reported higher sleep difficulties. This group showed greater physical, mental, and emotional impairments, including cancer-related fatigue (CRF), pain, lower self-perceived fitness, reduced physical activity (PA), worse mood, and diminished health-related quality of life (HRQoL) (all <i>p</i> &lt; 0.05). Regression identified “role functioning” (β = -0.37; <i>p</i> &lt; 0.01), “nausea and vomiting” (β = 0.37; <i>p</i> &lt; 0.01), and “PA level” (β = -0.17; <i>p</i> = 0.02) as significant predictors of higher levels of sleep difficulties (adjusted r<sup>2</sup> = 0.58).</p> Conclusion <p>Five or more years post-diagnosis, 55% of LTBCSs experienced higher sleep difficulties, associated with poorer HRQoL, self-perceived physical fitness, mood, and increased CRF and pain. Key predictors explained 58.4% of variance in sleep difficulties.</p>

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Exploring the influence and identifying key predictors of sleep difficulties on health status in long-term breast cancer survivors: a cross-sectional study

  • 期刊论文

  • 发表日期：

    2025年6月21日

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  • Francisco Álvarez-Salvago,
  • Clara Pujol-Fuentes,
  • Maria Figueroa-Mayordomo,
  • Cristina Molina-García,
  • Sandra Atienzar-Aroca,
  • José Daniel Jiménez-García,
  • Cristina Estornut,
  • Palmira Gutiérrez-García,
  • Jose Medina-Luque

摘要

Purpose

This study analyzed the relationship between different levels of sleep difficulties and physical, mental, and emotional variables in long-term breast cancer survivors (LTBCSs), and identified predictors of sleep-related complaints.

Methods

Eighty LTBCSs participated in this cross-sectional study. Sleep difficulties were assessed via item 11 of the EORTC QLQ-C30, classifying participants into two groups: low (n = 44; ≤ 26.29) and high sleep difficulties (n = 36; ≥ 26.30). Additional measures included the EORTC QLQ-BR23, Piper Fatigue Scale, Visual Analog Scale, Brief Pain Inventory, International Fitness Scale, Minnesota Leisure Time Physical Activity questionnaire, and the Scale for Mood Assessment. Statistical analyses comprised ANOVA, Mann–Whitney U, Chi-square, correlation, and multiple regression; effect sizes were calculated using Cohen’s d.

Results

Fifty-five percent of LTBCSs reported higher sleep difficulties. This group showed greater physical, mental, and emotional impairments, including cancer-related fatigue (CRF), pain, lower self-perceived fitness, reduced physical activity (PA), worse mood, and diminished health-related quality of life (HRQoL) (all p < 0.05). Regression identified “role functioning” (β = -0.37; p < 0.01), “nausea and vomiting” (β = 0.37; p < 0.01), and “PA level” (β = -0.17; p = 0.02) as significant predictors of higher levels of sleep difficulties (adjusted r2 = 0.58).

Conclusion

Five or more years post-diagnosis, 55% of LTBCSs experienced higher sleep difficulties, associated with poorer HRQoL, self-perceived physical fitness, mood, and increased CRF and pain. Key predictors explained 58.4% of variance in sleep difficulties.