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3.The Usefulness of Indices for Central Obesity Estimated by Bioelectrical Impedance Analysis in the Diagnosis of Metabolic Syndrome.

In Cheol HWANG ; Kyoung Kon KIM ; Kyoung Sik LEE ; Seung Soo KIM

Korean Journal of Health Promotion 2011;11(2):64-71

BACKGROUND: Recently-developed equipment based on bioelectrical impedance analysis (BIA) not only measures total body fat but also displays several estimated indicators that reflect intra-abdominal fat, such as waist circumference (WC) and waist-to-hip ratio (WHR). This study examined the usefulness of these indicators in the diagnosis of metabolic syndrome (MS). METHODS: A total of 632 people over 20 years of age (355 men and 277 women, mean age 48.61+/-11.08 years, mean BMI 23.62+/-3.00 kg/m2, 117 MS patients) were enrolled in the study. Measurements of WC and hip circumference were measured by one individual, and WHR was calculated. BIA was performed to estimate waist circumference (BIAWC) and waist-to-hip ratio (BIAWHR). Receiver operating characteristic (ROC) curve analysis was used to examine the usefulness of BIAWC and BIAWHR in diagnosing MS. RESULTS: The areas under the curve (AUCs) were 0.836 (95% CI 0.805-0.864) for WC, 0.814 (95% CI 0.782-0.844) for BIAWC, 0.815 (95% CI 0.782-0.844) for WHR, and 0.805 (95% CI 0.772-0.835) for BIAWHR. The difference between the AUCs of WC and BIAWC (0.022, 95% CI -0.004 to 0.048) and the difference between the AUCs of WHR and BIAWHR (0.010, 95% CI -0.015 to 0.034) were not significant. CONCLUSIONS: The indices for central obesity estimated by BIA had high agreement with the direct method, and they were not inferior to direct measured indices for predicting metabolic syndrome.
Adipose Tissue ; Area Under Curve ; Electric Impedance ; Female ; Hip ; Humans ; Intra-Abdominal Fat ; Male ; Obesity, Abdominal ; ROC Curve ; Waist Circumference ; Waist-Hip Ratio

Dentocutaneous fistula of the face neck is an infrequent manifestation of chronic dental infection. A periapical dental abscess may be initiated by disease, trauma, or thermal or chemical injury and develops into an extensive necrosis of surrounding tissue. Diagnostic errors can result in multiple excision, biopsies, and ineffective long-term antibiotic therapy. Awarness that periapical dental abscess is the most common etilolgic factor of cutaneous sinus tracts involves the face & neck will facilitate their early diagnosis and prevent needless treatment or anxiety for the patient. From 1994 to 1998, we have performed 6 cases of dentocutaneous fistula. Among of them, three were men and the others were women, age ranged from 18 to 66-year-old, and morbidity period was from 3 weeks to 3 years, the follow-up period ranged from 5 to 18 months (mean period 11 months). In conclusion, an understanding of the pathogenesis of cutaneous fistulae arising from dental infections will lead to proper early diagnosis and treatment without unnecessary surgery.
Abscess ; Aged ; Anxiety ; Biopsy ; Cutaneous Fistula ; Diagnostic Errors ; Early Diagnosis ; Female ; Fistula* ; Follow-Up Studies ; Humans ; Male ; Neck ; Necrosis ; Unnecessary Procedures