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Santomauro AC, Magalhães ÁLF, Motta FT, de Santana LS, Franco PC, de Freitas SM, Sanchez JJD, Costa-Riquetto AD, Teles MG. The performance of the MODY calculator in a non-Caucasian, mixed-race population diagnosed with diabetes mellitus before 35 years of age. Diabetol Metab Syndr 2023; 15:15. [PMID: 36747290 PMCID: PMC9900997 DOI: 10.1186/s13098-023-00985-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/21/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND A maturity-onset diabetes of the young (MODY) calculator has been described and validated for use in European Caucasians. This study evaluated its performance in Brazilians diagnosed with diabetes mellitus (DM) before 35 years of age. METHODS The electronic records of 391 individuals were reviewed in 2020 at the diabetes clinic of a quaternary hospital in São Paulo were analyzed: 231 with type 1 DM (T1DM), 46 with type 2 (T2DM) and 114 with MODY. The MODY calculator was applied to the three groups. A receiver operating characteristic curve was calculated to obtain cut-off points for this population. RESULTS The principal differences between the MODY and the T1DM and T2DM groups were body mass index, a positive family history of diabetes and mean HbA1c level. Age at diagnosis in the MODY group was only significantly different compared to the T2DM group. Specificity and sensitivity were good for the cut-off points of 40%, 50% and 60%, with the accuracy of the model for any of these cut-off points being > 95%. CONCLUSION The capacity of the calculator to identify Brazilian patients with MODY was good. Values ≥ 60% proved useful for selecting candidates for MODY genetic testing, with good sensitivity and specificity.
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Affiliation(s)
- Augusto Cezar Santomauro
- Grupo de Diabetes Monogênico (Monogenic Diabetes Group), Unidade de Endocrinologia, Genética (LIM25), Unidade de Diabetes, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP 01246-903 Brazil
| | - Áurea Luiza Fernandes Magalhães
- Grupo de Diabetes Monogênico (Monogenic Diabetes Group), Unidade de Endocrinologia, Genética (LIM25), Unidade de Diabetes, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP 01246-903 Brazil
| | - Flávia Tedesco Motta
- Grupo de Diabetes Monogênico (Monogenic Diabetes Group), Unidade de Endocrinologia, Genética (LIM25), Unidade de Diabetes, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP 01246-903 Brazil
| | - Lucas Santos de Santana
- Grupo de Diabetes Monogênico (Monogenic Diabetes Group), Unidade de Endocrinologia, Genética (LIM25), Unidade de Diabetes, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP 01246-903 Brazil
| | - Pedro Campos Franco
- Grupo de Diabetes Monogênico (Monogenic Diabetes Group), Unidade de Endocrinologia, Genética (LIM25), Unidade de Diabetes, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP 01246-903 Brazil
| | - Silvia Maria de Freitas
- Department of Statistics and Applied Mathematics, Postgraduate Program in Modeling and Quantitative Methods, Science Center, Pici Campus, Federal University of Ceará (UFC), Fortaleza, CE 60440-900 Brazil
| | - Jeniffer Johana Duarte Sanchez
- Department of Statistics and Applied Mathematics, Postgraduate Program in Modeling and Quantitative Methods, Science Center, Pici Campus, Federal University of Ceará (UFC), Fortaleza, CE 60440-900 Brazil
| | - Aline Dantas Costa-Riquetto
- Grupo de Diabetes Monogênico (Monogenic Diabetes Group), Unidade de Endocrinologia, Genética (LIM25), Unidade de Diabetes, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP 01246-903 Brazil
| | - Milena G. Teles
- Grupo de Diabetes Monogênico (Monogenic Diabetes Group), Unidade de Endocrinologia, Genética (LIM25), Unidade de Diabetes, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo, SP 01246-903 Brazil
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