Luiz Gastão Rosenfeld1, Deborah Carvalho Malta2,3, Célia Landmann Szwarcwald4, Nydia Strachman Bacal1, Maria Alice Martins Cuder5, Cimar Azeredo Pereira6, André William Figueiredo6, Alanna Gomes da Silva3, Ísis Eloah Machado3, Wanessa Almeida da Silva6, Gonzalo Vecina Neto7, Jarbas Barbosa da Silva Júnior8. 1. Centro de Hematologia de São Paulo - São Paulo (SP), Brasil. 2. Departamento de Enfermagem Materno Infantil e Saúde Pública. Escola de Enfermagem, Universidade Federal de Minas Gerais - Belo Horizonte (MG), Brasil. 3. Programa de Pós-Graduação em Enfermagem, Escola de Enfermagem, Universidade Federal de Minas Gerais - Belo Horizonte (MG), Brasil. 4. Instituto de Comunicação e Informação Científica e Tecnológica em Saúde, Fundação Oswaldo Cruz - Rio de Janeiro (RJ), Brasil. 5. Dasa Diagnósticos da América - Barueri (SP), Brasil. 6. Diretoria de Pesquisas, Instituto Brasileiro de Geografia e Estatística - Rio de Janeiro (RJ), Brasil. 7. Faculdade de Saúde Pública, Universidade de São Paulo - São Paulo (SP), Brasil. 8. Organização Pan-Americana da Saúde - Washington, D.C., Estados Unidos.
Abstract
OBJECTIVE: To describe reference values for blood counts obtained from laboratory tests in the Brazilian adult population according to laboratory results from the National Health Survey (Pesquisa Nacional de Saúde - PNS), by gender, age group and skin color. METHODS: The initial sample consisted of 8,952 adults. To determine the reference values, individuals with prior diseases and outliers were excluded. Mean values, standard deviation and limits were stratified by gender, age group and skin color. RESULTS: For red blood cells, men presented a mean value of 5.0 million per mm3 (limits: 4.3-5.8) and women, 4.5 million per mm3 (limits: 3.9-5.1). Hemoglobin levels were higher among men with a mean of 14.9 g/dL (13.0-16.9), and in women, 13.2 g/dL (11.5-14.9). The mean number of white blood cells among men was 6.142/mm3 (2.843-9.440) and 6.426/mm3 (2.883-9.969) for women. Other parameters showed close values between the genders. Regarding age groups and skin color, mean values, standard deviation and limits of the exams presented small variations. CONCLUSION: Hematological reference values based on the national survey allow for the establishment of specific reference limits for gender, age and skin color. The results presented here may contribute to the establishment of better evidence and criteria for the care, diagnosis and treatment of diseases.
OBJECTIVE: To describe reference values for blood counts obtained from laboratory tests in the Brazilian adult population according to laboratory results from the National Health Survey (Pesquisa Nacional de Saúde - PNS), by gender, age group and skin color. METHODS: The initial sample consisted of 8,952 adults. To determine the reference values, individuals with prior diseases and outliers were excluded. Mean values, standard deviation and limits were stratified by gender, age group and skin color. RESULTS: For red blood cells, men presented a mean value of 5.0 million per mm3 (limits: 4.3-5.8) and women, 4.5 million per mm3 (limits: 3.9-5.1). Hemoglobin levels were higher among men with a mean of 14.9 g/dL (13.0-16.9), and in women, 13.2 g/dL (11.5-14.9). The mean number of white blood cells among men was 6.142/mm3 (2.843-9.440) and 6.426/mm3 (2.883-9.969) for women. Other parameters showed close values between the genders. Regarding age groups and skin color, mean values, standard deviation and limits of the exams presented small variations. CONCLUSION: Hematological reference values based on the national survey allow for the establishment of specific reference limits for gender, age and skin color. The results presented here may contribute to the establishment of better evidence and criteria for the care, diagnosis and treatment of diseases.
Authors: Paulo Cesar Basta; Paulo Victor de Sousa Viana; Ana Claudia Santiago de Vasconcellos; André Reynaldo Santos Périssé; Cristina Barroso Hofer; Natalia Santana Paiva; Joseph William Kempton; Daniel Ciampi de Andrade; Rogério Adas Ayres de Oliveira; Rafaela Waddington Achatz; Jamila Alessandra Perini; Heloísa do Nascimento de Moura Meneses; Gustavo Hallwass; Marcelo de Oliveira Lima; Iracina Maura de Jesus; Cleidiane Carvalho Ribeiro Dos Santos; Sandra de Souza Hacon Journal: Int J Environ Res Public Health Date: 2021-09-01 Impact factor: 3.390
Authors: Naila A Shaheen; Hina Rehan; Areej Moghairi; Giamal Gmati; Moussab Damlaj; Hind Salama; Mushtaq Rather; May Anne Mendoza; Abeer Alanazi; Bader Al Ahmari; Mohsen Al Zahrani; Ayman Al-Hejazi; Ahmed S Alaskar Journal: Front Med (Lausanne) Date: 2022-07-28