Effect of a Structured Multilevel Telehealth Service on Hospital Admissions and Mortality During COVID-19 in a Resource-Limited Region in Brazil: Retrospective Cohort Study

Clara Rodrigues Alves Oliveira   ^{1, 2} , MSc, MD, PhD ;   Magda Carvalho Pires   ³ , MD, PhD ;   Karina Cardoso Meira   ⁴ , MD, PhD ;   Jordana Cristina de Jesus   ⁴ , MD, PhD ;   Isabela Nascimento Borges   ^{1, 2} , MSc, MD, PhD ;   Maria Cristina Paixão   ² , BSc ;   Mayara Santos Mendes   ² , MSc, MD ;   Leonardo Bonisson Ribeiro   ² , BSc ;   Milena Soriano Marcolino   ^{1, 2, 5} , MSc, MD, PhD ;   Maria Beatriz Moreira Alkmim   ² , MSc, MD ;   Antonio Luiz Pinho Ribeiro   ^{1, 2, 5} , MSc, MD, PhD

¹ Department of Internal Medicine, Medical School, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil

² Telehealth Center, University Hospital and Telehealth Network of Minas Gerais, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil

³ Department of Statistics, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil

⁴ Health School, Universidade Federal do Rio Grande do Norte, Natal, Brazil

⁵ Institute for Health Technology Assessment, Porto Alegre, Brazil