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Sleep Disorders
Volume 2013, Article ID 150371, 7 pages
Research Article

The Relationship between Diabetic Neuropathy and Sleep Apnea Syndrome: A Meta-Analysis

1Department of Internal Medicine, Faculty of Medicine, Tsukuba University, Japan
2Department of Internal Medicine, Faculty of Medicine, Niigata University, 1-754 Asahimachi, Niigata, Niigata 951-8510, Japan

Received 26 August 2013; Revised 8 November 2013; Accepted 8 November 2013

Academic Editor: Mehdi Tafti

Copyright © 2013 Kazuya Fujihara et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

Supplemental Material 1. Study keywords in this meta-analysis. Study keywords were related to diabetes, neuropathy, and sleep apnea, which were combined using the

Supplemental Material 2. Results of quality assessment of the included studies using the modified Newcastle-Ottawa Scale.

Supplemental Material 3. Flowchart of Meta-analysis.

Supplemental Material 4. Forest plot showing the odds ratios (ORs) with 95% confidence intervals (95% CI) of sleep apnea syndrome for participants with type 2 diabetes who have diabetic neuropathy (DN) compared to participants without DN. Pooled OR is indicated by a diamond. A, B, C, D, and E show the results of each forest plot with regard to age, BMI, country, type of DN, and study quality category, respectively.

  1. Supplementary Materials