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Sleep Quality of Patients with Differentiated Thyroid Cancer

We aimed to measure prevalence of sleep disturbance in patients with differentiated thyroid cancer (DTC) by calculating Pittsburgh Sleep Quality Index (PSQI), and compare these data with patients with benign thyroid nodules or normal participants. Three groups of patients participated in this cross-...

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Published in:PloS one 2015-06, Vol.10 (6), p.e0130634-e0130634
Main Authors: He, Yajing, Meng, Zhaowei, Jia, Qiang, Hu, Fang, He, Xianghui, Tan, Jian, Zhang, Guizhi, Li, Xue, Zhang, Jianping, Zhang, Qing, Liu, Li, Zhao, Lili, Li, Jing, Wang, Yuling, Qian, Yumei, Hou, Shuling, Liu, Hua, Wang, Sheng, Wang, Renfei, Zheng, Wei, Hu, Tianpeng, Liu, Na, Upadhyaya, Arun, Liu, Yang
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Language:English
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Summary:We aimed to measure prevalence of sleep disturbance in patients with differentiated thyroid cancer (DTC) by calculating Pittsburgh Sleep Quality Index (PSQI), and compare these data with patients with benign thyroid nodules or normal participants. Three groups of patients participated in this cross-sectional study. In the first group, 162 patients with DTC received total thyroidectomy, and then 131I therapy. The second group consisted of 84 patients with benign thyroid nodules, who received partial thyroidectomy. The third group was 78 normal healthy control cases. PSQI was used to assess the sleep quality. Inter-group differences were analyzed by Kruskal-Wallis test or independent samples T test. χ2 test was also used to check prevalence differences of poor sleep quality among the groups. Differences of PSQI score and poor sleep quality prevalence before and after 131I therapy in the same group of DTC participants were analyzed by paired T test and Mcnemar's test. Higher PSQI score (7.59 ± 4.21) and higher rate of poor sleep quality (54.32%) were shown in DTC patients than in any other group. After 131I therapy, PSQI score and prevalence of poor sleep quality in DTC patients increased significantly to 8.78 ± 4.72 and 70.99%. Then DTC patients were divided into two subgroups based on their metastatic status. DTC patients with metastasis (87/162 cases, 53.70%) had significantly higher PSQI score (10.87 ± 5.18) and higher prevalence of poor sleep quality (79.31%). DTC patients suffer from sleep disturbance, 131I therapy and awareness of metastatic status could worsen sleep problem. Psychological fear of cancer, nuclear medicine therapy and metastasis could be one major underlying reason. Longitude and interventional studies are necessary for further investigations.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0130634