Publication Name	World Journal of Methodology
Manuscript ID	117313
DOI	10.5662/wjm.117313
Country	Brazil

Category	Endocrinology & Metabolism
Manuscript Type	Retrospective Cohort Study
Article Title	Age at type 1 diabetes mellitus diagnosis: A four-decade Brazilian cohort analysis
Manuscript Source	Invited Manuscript
All Author List	Lucas Casagrande Passoni Lopes and Carlos Antonio Negrato
Funding Agency and Grant Number
Corresponding Author	Lucas Casagrande Passoni Lopes, Faculdade de Medicina de Bauru, Faculdade de Medicina de Bauru, Universidade de São Paulo, 9-75, Doutor Octávio Pinheiro Brisolla, St, Bauru 17012-901, Brazil. lucaspassoni@usp.br
Key Words	Type 1 diabetes mellitus; Age at diagnosis; Cesarean delivery; Environmental factors; Autoimmunity; Ethnicity; Gestational age
Core Tip	Children born by cesarean section and with a history of mumps tended to be present an earlier age at type 1 diabetes mellitus (T1DM) diagnosis, possibly through immune modulation and perinatal exposures. These results suggest the role of environmental and/or perinatal factors in T1DM pathophysiology.
Citation	Lopes LCP, Negrato CA. Age at type 1 diabetes mellitus diagnosis: A four-decade Brazilian cohort analysis. World J Methodol 2026; In press DOI: https://doi.org/10.5662/wjm.117313
PDF	117313-in-press.pdf

Received	2025-12-05 00:33
Peer-Review Started	2025-12-05 00:33
First Decision by Editorial Office Director	2026-01-14 08:21
Return for Revision	2026-01-14 08:21
Revised	2026-05-14 11:25
Publication Fee Transferred
Second Decision by Editor	2026-06-15 02:42
Second Decision by Editor-in-Chief
Final Decision by Editorial Office Director	2026-06-15 05:42
Articles in Press	2026-06-15 05:42
Edit the Manuscript by Language Editor
Typeset the Manuscript

ISSN	2222-0682 (online)
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