Cut-off points of neck and waist circumference as predictors of obstructive sleep apnea in the Colombian population : a comparison with polysomnography

BACKGROUND: Neck circumference (NC) is a useful anthropometric measure for predicting obstructive sleep apnea (OSA). Ethnicity and sex also influence obesity phenotypes. NC cut-offs for defining OSA have not been established for the Latin American population. OBJECTIVES: To evaluate NC, waist circumference (WC), and body mass index (BMI) as predictors of OSA in the Colombian population and to determine optimal cut-off points. DESIGN AND SETTING: Diagnostic tests were conducted at the Javeriana University, Bogota. METHODS: Adults from three cities in Colombia were included. NC, WC, and BMI were measured, and a polysomnogram provided the reference standard. The discrimination capacity and best cut-off points for diagnosing OSA were calculated. RESULTS: 964 patients were included (57.7% men; median age, 58 years) and 43.4% had OSA. The discrimination capacity of NC was similar for men and women (area under curve, AUC 0.63 versus 0.66, P = 0.39) but better for women under 60 years old (AUC 0.69 versus 0.57, P < 0.05). WC had better discrimination capacity for women (AUC 0.69 versus 0.57, P < 0.001). There were no significant differences in BMI. Optimal NC cut-off points were 36.5 cm for women (sensitivity [S]: 71.7%, specificity [E]: 55.3%) and 41 cm for men (S: 56%, E: 62%); and for WC, 97 cm for women (S: 65%, E: 69%) and 99 cm for men (S: 53%, E: 58%). CONCLUSIONS: NC and WC have moderate discrimination capacities for diagnosing OSA. The cut-off values suggest differences between Latin- and North American as well as Asian populations.

• Autores: Amado Garzon, Sandra Brigitte; Muñoz-VelandiaI, Oscar Mauricio; Ruiz, Alvaro J; Hidalgo Martínez, Patricia; Otero, Liliana
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2023
• Institución: Pontificia Universidad Javeriana
• Repositorio: Repositorio Universidad Javeriana
• Idioma: N/A
• OAI Identifier: oai:repository.javeriana.edu.co:10554/66699
• Acceso en línea: https://www.scielo.br/j/spmj/a/ksydhW5TMQXbTX5PtGHz3nr/?lang=en; http://hdl.handle.net/10554/66699; https://doi.org/10.1590/1516-3180.2022.0415.R2.310523
• Palabra clave: Circunferencia de la cintura; Apnea del sueño obstructiva; Área bajo curva; Índice de masa corporal; Waist circumference; Sleep apnea; obstructive; Area under curve; Body mass index
• License: Atribución-NoComercial 4.0 Internacional