Understanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern India

Abstract We aimed to evaluate the predictive accuracy of InsuTAG index against M value of the hyperinsulinaemic-Euglycaemic clamp (HEC) procedure and fasting surrogate indices of insulin sensitivity/resistance in young, normoglycaemic, Asian Indian males. HEC studies were done in young (mean age 19....

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Main Authors: Felix K. Jebasingh, Shajith Anoop, Riddhi Dasgupta, Mathews Edatharayil Kurian, Aneez Joseph, Grace Rebekah, Venkataraghava Mohan, Nihal Thomas
Format: Article
Language:English
Published: Nature Portfolio 2023-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-45880-z
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author Felix K. Jebasingh
Shajith Anoop
Riddhi Dasgupta
Mathews Edatharayil Kurian
Aneez Joseph
Grace Rebekah
Venkataraghava Mohan
Nihal Thomas
author_facet Felix K. Jebasingh
Shajith Anoop
Riddhi Dasgupta
Mathews Edatharayil Kurian
Aneez Joseph
Grace Rebekah
Venkataraghava Mohan
Nihal Thomas
author_sort Felix K. Jebasingh
collection DOAJ
description Abstract We aimed to evaluate the predictive accuracy of InsuTAG index against M value of the hyperinsulinaemic-Euglycaemic clamp (HEC) procedure and fasting surrogate indices of insulin sensitivity/resistance in young, normoglycaemic, Asian Indian males. HEC studies were done in young (mean age 19.7 ± 1 years), non-obese (mean BMI 19.2 ± 2.6 kg/m2), normoglycemic Asian Indian males (n = 110) and the M value was calculated. Surrogate indices namely InsuTAG index, HOMA-IR, FG-IR, QUICKI and McAuley index were calculated. Pearson’s correlation and ROC-AUC at 95% CI were applied. Significant negative correlation was observed for InsuTAG index with the M value (r − 0.23, p = 0.01), McAuley index (r − 0.65, p < 0.01), QUICKI (r − 0.34, p < 0.01) and FGIR (r − 0.35, p < 0.01). Significant positive correlations of InsuTAG index were observed for BMI and waist circumference. The ROC-AUC was higher for InsuTAG index (0.75) than FGIR (0.30), QUICKI (0.31), and McAuley index (0.20). The InsuTAG cut-off value ≥ 19.13 showed 66.7% sensitivity and 69.2% specificity in this study group.
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spelling doaj.art-f692f46ed6fe48c891298f22969f96702023-11-12T12:17:29ZengNature PortfolioScientific Reports2045-23222023-11-011311810.1038/s41598-023-45880-zUnderstanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern IndiaFelix K. Jebasingh0Shajith Anoop1Riddhi Dasgupta2Mathews Edatharayil Kurian3Aneez Joseph4Grace Rebekah5Venkataraghava Mohan6Nihal Thomas7Department of Endocrinology, Diabetes and Metabolism, Christian Medical College VelloreDepartment of Endocrinology, Diabetes and Metabolism, Christian Medical College VelloreDepartment of Endocrinology, Diabetes and Metabolism, Christian Medical College VelloreDepartment of Endocrinology, Diabetes and Metabolism, Christian Medical College VelloreDepartment of Endocrinology, Diabetes and Metabolism, Christian Medical College VelloreDepartment of Biostatistics, Christian Medical CollegeDepartment of Community Health and Development, Christian Medical CollegeDepartment of Endocrinology, Diabetes and Metabolism, Christian Medical College VelloreAbstract We aimed to evaluate the predictive accuracy of InsuTAG index against M value of the hyperinsulinaemic-Euglycaemic clamp (HEC) procedure and fasting surrogate indices of insulin sensitivity/resistance in young, normoglycaemic, Asian Indian males. HEC studies were done in young (mean age 19.7 ± 1 years), non-obese (mean BMI 19.2 ± 2.6 kg/m2), normoglycemic Asian Indian males (n = 110) and the M value was calculated. Surrogate indices namely InsuTAG index, HOMA-IR, FG-IR, QUICKI and McAuley index were calculated. Pearson’s correlation and ROC-AUC at 95% CI were applied. Significant negative correlation was observed for InsuTAG index with the M value (r − 0.23, p = 0.01), McAuley index (r − 0.65, p < 0.01), QUICKI (r − 0.34, p < 0.01) and FGIR (r − 0.35, p < 0.01). Significant positive correlations of InsuTAG index were observed for BMI and waist circumference. The ROC-AUC was higher for InsuTAG index (0.75) than FGIR (0.30), QUICKI (0.31), and McAuley index (0.20). The InsuTAG cut-off value ≥ 19.13 showed 66.7% sensitivity and 69.2% specificity in this study group.https://doi.org/10.1038/s41598-023-45880-z
spellingShingle Felix K. Jebasingh
Shajith Anoop
Riddhi Dasgupta
Mathews Edatharayil Kurian
Aneez Joseph
Grace Rebekah
Venkataraghava Mohan
Nihal Thomas
Understanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern India
Scientific Reports
title Understanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern India
title_full Understanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern India
title_fullStr Understanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern India
title_full_unstemmed Understanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern India
title_short Understanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern India
title_sort understanding the predictive accuracy of the insutag index over other surrogate indices in normoglycaemic non obese males from southern india
url https://doi.org/10.1038/s41598-023-45880-z
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