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Restless legs syndrome and its relationship with anxiety, depression, and quality of life in cancer patients undergoing chemotherapy

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Abstract

Objective

Restless legs syndrome (RLS) is a common sensorimotor disorder characterized by uncomfortable and unpleasant sensations in the legs that are relieved by movement. This study evaluated the prevalence of RLS in a consecutive series of cancer patients during chemotherapy and examined the relationship between presence of RLS and quality of life, anxiety, and depressive symptoms in these patients.

Methods

RLS was assessed according to the International RLS Study Group essential diagnostic criteria in two stages: a screening questionnaire first, followed by a sleep specialist–conducted structured diagnostic interview. The following questionnaires were administered: Functional Assessment of Cancer Therapy-General (FACT-G) for Quality-of-life (QoL) assessment; Hospital Anxiety and Depression Scale (HADS) to evaluate the levels of anxiety and depression; and Mini Mental Adjustment to Cancer Scale (Mini-MAC) to assess coping styles.

Results

A total of 257 patients were evaluated. Among them 56 were identified by the screening questionnaire to meet the criteria for RLS and 47 of whom were confirmed as affected by RLS after a structured interview, rendering a prevalence rate of 18.3%. RLS was significantly more frequent in women than men (23.7 vs. 11.8%; P = 0.01), and in patients receiving antineoplastic therapies for more than 3 months than their counterpart (21.8 vs. 10.8%; P = 0.03). Compared with those without RLS, patients with RLS had higher levels of anxiety (P = 0.0009) and depression (P = 0.001) and lower quality of life (P = 0.006). Sex-chemotherapy-duration-adjusted odds ratios of anxiety and physical well-being associated with RLS were 1.1 (95% CI 1.00–1.19; P = 0.04) and 0.7 (95% CI 0.43–1.01; P = 0.04), respectively.

Conclusions

The prevalence of RLS in cancer patients undergoing chemotherapy is 18.3%, about double of that expected in the general population. The occurrence of RLS is much more frequent in female patients and with longer-term chemotherapy. Cancer patients afflicted by RLS have significantly higher levels of anxiety and depression, and poorer quality of life especially in the physical well-being dimension. Recognition and treatment of RLS in cancer patients is an important target in clinical management and may improve quality of life and overall health outcomes in these patients.

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Acknowledgments

We thank Tracy Kuo, PhD, Stanford, CA for her help in editing the manuscript.

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Authors and Affiliations

  1. Mental Health, University of Torino, San Luigi Hospital, Orbassano, Italy

    Luca Ostacoli, Erica Sguazzotti, Rocco Luigi Picci, Mario Toje & Pier Maria Furlan

  2. Medical Oncology, Department of Clinical and Biological Science, University of Torino, San Luigi Hospital, Orbassano, Italy

    Andrea Saini, Gabriella Gorzegno, Serena Capogna, Luigi Dogliotti & Alfredo Berruti

  3. Sleep Disorder Center, Università Vita-Salute San Raffaele, Via Stamira d’ Ancona 20, 20127, Milan, Italy

    Luigi Ferini-Strambi & Vincenza Castronovo

  4. Medical Oncology, ASL 8, Chieri, Italy

    Vincenzo Dongiovanni

Authors
  1. Luca Ostacoli
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  2. Andrea Saini
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  3. Luigi Ferini-Strambi
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Corresponding author

Correspondence to Luigi Ferini-Strambi.

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Ostacoli, L., Saini, A., Ferini-Strambi, L. et al. Restless legs syndrome and its relationship with anxiety, depression, and quality of life in cancer patients undergoing chemotherapy. Qual Life Res 19, 531–537 (2010). https://doi.org/10.1007/s11136-010-9614-8

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  • DOI: https://doi.org/10.1007/s11136-010-9614-8

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