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Objective Waist circumference, as a brief indicator of visceral obesity, is associated with multi-metabolic disorders and cardiovascular diseases. The present study was aimed to find out the relationship between waist circumference and carotid intima media thickness(C-IMT), as well as the best waist circumference cutoff for identifying C-IMT elevation in Chinese male patients with newly-diagnosed diabetes. Methods Five hundred and seventy-eight patients from Department of Endocrinology and Metabolism in Shanghai Sixth People’s Hospital affiliated to Shanghai Jiao Tong University were enrolled. Both physical examination(for measurement of waist circumference) and carotid ultrasonography(for measurement of C-IMT) were performed. Results After grouping according to the quartiles of C-IMT, the waist circumference increased across all its quartiles. The waist circumference in 3rd and 4th quartiles(90.7±9.8 cm and 90.8±9.6 cm) was significant higher than in 1st and 2nd quartiles(P<0.05). When subjects were divided into 4 groups according to waist circumference, the C-IMT of subjects with waist circumference 90-95 cm was significant higher than that of subjects with waist circumference 85-90 cm and less than 85 cm respectively(P<0.05). Both spearman and partial correlation analysis showed that C-IMT was positively correlated with waist circumference(P<0.01). C-IMT was found significantly elevated with the increase of waist circumference. Multiple stepwise regression analysis showed that waist circumference was one of the independent risk factors of C-IMT. After an average of 2.23±0.85 years follow up, there was a significant elevation of C-IMT in the group with baseline waist circumference over 90 cm P<0.05), while no significant difference was detected in the group with baseline waist circumference less than 90 cm(P=0.27). Logistic regression showed that baseline waist circumference over 90 cm was associated with a relative risk to C-IMT elevation of 1.132(95% CI 1.043-1.431, P<0.05). Conclusion Among newly-diagnosed diabetic male patients, waist circumference over 90 cm not only reflects sub-clinical atherosclerosis in early stage, but also predicts the progression of atherosclerosis.
Objective Waist circumference, as a brief indicator of visceral obesity, is associated with multi-metabolic disorders and cardiovascular diseases. The present study was aimed to find out the relationship between waist circumference and carotid intima media thickness (C-IMT), as well as the best waist circumference cutoff for identifying C-IMT elevation in Chinese male patients with newly-diagnosed diabetes. Methods Five hundred and seventy-eight patients from Department of Endocrinology and Metabolism in Shanghai Sixth People’s Hospital affiliated to Shanghai Jiao Tong University were enrolled. Both physical examination (for measurement of waist circumference) and carotid ultrasonography (for measurement of C-IMT) were performed. Results After grouping according to the quartiles of C-IMT, the waist circumference increased across all its quartiles. The waist circumference in 3rd and 4th quartiles (90.7 ± 9.8 cm and 90.8 ± 9.6 cm) were significantly higher than in 1st and 2nd quartiles (P <0.05). W The subjects were divided into 4 groups according to waist circumference, the C-IMT of subjects with waist circumference 90-95 cm was significantly higher than that of subjects with waist circumference 85-90 cm and less than 85 cm respectively (P <0.05) Both spearman and partial correlation analysis showed that C-IMT was positively correlated with waist circumference (P <0.01). C-IMT was found elevated with the increase of waist circumference. Multiple stepwise regression analysis showed that waist circumference was one of the independent risk factors of C-IMT. After an average of 2.23 ± 0.85 years follow up, there was a significant elevation of C-IMT in the group with baseline waist circumference over 90 cm P <0.05), while no significant difference was detected in the group with baseline waist circumference less than 90 cm (P = 0.27). Logistic regression showed that baseline waist circumference over 90 cm was associated with a relative risk to C-IMT elevation of 1.132 (95% CI 1.043 -1.431, P <0.05). Conclusion Among newly-diagnosed diabetic male patients, waist circumference over 90 cm not only hypoxic sub-clinical atherosclerosis in early stage, but also predicts the progression of atherosclerosis.