Conflict of interest
The authors declare no known competing financial interests or personal relationships that could influence the work reported in this paper.
Source of funding
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Author contributions
Catalina Vaz Ferreira: Conceptualization, investigation, writing- original draft and visualization. José Caro: Conceptualization, methodology, investigation, writing- review and editing. Luis Villarroel: Methodology, software, formal analysis, and validation. Sergio Muñoz: Investigation. Patricia Alvarez: Investigation. Gerardo Flores: Investigation. Tamara Herrera: Investigation. Alberto Toso: Conceptualization, investigation, writing- review and editing and supervision.
Paulina Toso: Investigation and supervision. José Luis Tapia: Conceptualization, methodology, writing-review and editing, supervision and project administration.
Acknowledgements
Authors would like to thank all the NEOCOSUR Neonatal Network members who took part in this study and the Database Unit.
Argentina: Ana Pedraza, Guillermo Colantonio, Gastón Pérez, Jorge Zapata, Fortunato Tomas (Clínica y Maternidad Suizo Argentina, Buenos Aires); Silvia Fernández, Pablo Brener, Gonzalo Mariani, María P . Carrascal, Fernanda Galleti (Hospital Italiano de Buenos Aires); Jorge Tavosnaska, Liliana Roldan, Gladys Saa, Débora Sabatelli, María L. Gendra, María T. Sepúlveda, María F. Buraschi, Graciela Basso (Hospital Juan Fernández, Buenos Aires); Mónica Rinaldi, Daniel Agost (Hospital Lagomaggiore, Mendoza); Claudio Solana, Elio Rojas, Ricardo Nieto, Javier Meritano (Maternidad Sardá, Buenos Aires); Néstor Vain, Lionel Cracco, Edith Martínez, Noemí Jacobi, María San Miguel (Sanatorio de la Trinidad, Buenos Aires); Horacio Roge, Daniel Abdala, Martín Guida, Damián Pretz (Hospital Español de Mendoza, Mendoza); Gabriel Musante, Rodolfo Keller, Carola Capelli, Magdalena Elizalde, Ana Leyla, Romina Acha (Hospital Universitario Austral, Buenos Aires), Luis Ahumada, Mirta Ferreyra, Laura Sánchez, Adriana Mitrano (Hospital Nuestra Señora de la Misericordia, Córdoba).
Brasil: Marynea Do Vale, Vanda M. Ferreira, Silvia Cavalcante de Sousa, Patricia Franco Márquez, Rosangeles Fernández, Lucena Batista, Marilia Da Gloria Martins (Hospital Universitario UFMA, São Luís).
Chile: Daniela Masoli, Jorge Fabres, Alberto Toso, José L Tapia, Álvaro González, Mariela Quezada, Solange Rojas (Hospital Clínico Universidad Católica de Chile, Santiago); Jaime Burgos, María E. Hübner, Rodrigo Ramírez (Hospital Clínico Universidad de Chile, Santiago); Jorge León del Pedregal, Lilia Campos, Aldo Bancalari, Ximena Giaconi, Sergio Treuer, Roxana Aguilar (Hospital Guillermo Grant, Concepción); Jane Standen, Marisol Escobar, Daniela Sandino, Viviana Veas (Hospital Gustavo Fricke, Viña del Mar); Agustina González, Claudia Ávila (Hospital San José, Santiago); Marcela Díaz, Patricia Mena (Hospital Dr. Sótero del Río, Santiago); Dagoberto Pizarro, Rafael Mendizábal, María Caballero (Hospital San Borja Arriarán, Santiago); Rodrigo Donoso, Gerardo Flores, Johanne Jahnsen, Ivian Blanco, Virginia Alpaca, María E. Aguirre, Mauricio Marín, Patricia Álvarez, Jaime García (Hospital Puerto Montt, Puerto Montt); María I. Saldes, Eduardo Ahumada, Montserrat Vásquez, Paula Gajardo (Hospital Van Buren, Valparaíso); Carmen Díaz, Ximena Sandoval, Sergio Farías, Carola Aguirre (Hospital Antofagasta, Antofagasta).
Paraguay: Ramón Mir, José Lacarruba, Larissa Genes, Elizabeth Céspedes, Elvira Mendieta (Departamento de Hospital de Clínicas de Asunción, Asunción); Rosanna Fonseca, Larissa Genes, Leticia Zapata, Sonia Pereira (Hospital San Pablo, Asunción).
Peru: Verónica Webb, Margarita Llontop, Lili Chancafe, Sicilia Bellomo (Hospital Cayetano Heredia, Lima); César García, Oscar Chumbes, Anne Castañeda, Jorge Mucha, Alcides Carrión (Hospital Guillermo Almenara, Lima).
Uruguay: Fernando Silvera, Mario Moraes, Daniel Borbonet, Catalina Vaz Ferreira, Tamara Herrera, Elsa Arocena, Stephanie Merola (Facultad de Medicina Servicio de Recién Nacidos Pereira Rossell, Montevideo).
Database Unit, Pontificia Universidad Católica, Santiago, Chile: Ivonne D’Apremont, José L Tapia, Mariela Quezada, Solange Rojas. Luis Villarroel, Angélica Domínguez, Claudia Musalem, Guillermo Marshall. José Zubizarreta, PUC Information Technology Management.