Abstract
Study design
Cross-sectional.
Objectives
To determine the obesity cutoff values for body mass index (BMI) and waist circumference (WC) in Korean men with motor complete spinal cord injury (SCI).
Setting
Tertiary level hospital in Seoul, Korea.
Methods
BMI (kg/m2) was calculated and WC (cm) was measured in each participant in the supine position. Percentage of total body fat (%) was determined using whole-body dual-energy X-ray absorptiometry. Receiver operating characteristic curves were generated to determine the obesity cutoff values for BMI and WC. The optimal cutoff values were determined using the Youden index. Identified cutoff values were compared with those of 195 age- and BMI-matched men in the general population (GP), obtained from the Korea National Health and Nutrition Examination Survey.
Results
This study included 52 Korean men with motor complete SCI. A BMI of 20.2 kg/m2 and WC of 81.3 cm were identified as obesity cutoff values in Korean men with motor complete SCI. The area under the curve (AUC) was 0.928, specificity was 100%, and sensitivity was 84.8% according to the ROC curve of BMI for participants. AUC was 0.964, specificity was 100%, and sensitivity was 84.8% in the ROC curve of WC for participants. A BMI of 22.5 kg/m2 and WC of 85.5 cm were identified as obesity cutoff values in age- and BMI-matched men in the GP.
Conclusions
The obesity cutoff values in Korean men with motor complete SCI that were determined in this study were lower than those of the Korean GP and western people with SCI.
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Acknowledgements
We thank Hye-Ri Kim, Il-Young Jung, and Ja-Ho Leigh for contributing to the data collection. This study was supported by the Bio & Medical Technology Development Program of the National Research Foundation of Korea.
Author contributions
JHY was responsible for extracting and analyzing data, interpreting results, creating the figures and writing the report. He contributed to designing the study and collecting data. SMC was responsible for designing the study, writing the initial protocol, collecting data. He contributed to interpreting results and writing the report. JCK was responsible for analyzing data, writing the report and updating reference lists. He contributed to collecting data and interpreting the results. HIS was responsible for designing the study, collecting data, interpreting the results. He provided feedback on the report and approved the final version.
Funding
This study was funded by the Ministry of Science, ICT, and Future Planning (2013R1A1A2010246).
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All applicable institutional and governmental regulations concerning the ethical use of human volunteers were followed during the course of this research. The study was approved by the Institutional Review Board of Seoul National Hospital (IRB No. 1412-115-634), and written informed consent was obtained from all study participants.
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The authors declare that they have no conflict of interest.
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Yun, JH., Chun, SM., Kim, JC. et al. Obesity cutoff values in Korean men with motor complete spinal cord injury: body mass index and waist circumference. Spinal Cord 57, 110–116 (2019). https://doi.org/10.1038/s41393-018-0172-1
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DOI: https://doi.org/10.1038/s41393-018-0172-1
