With the prevalence obtained from the pilot study of 11%, the confidence level of 95% and error of 5%, a sample of 131 participants was defined.
Con la prevalencia obtenida de la prueba piloto de 11%, nivel de confianza de 95% y error de 5%, se delimitó la muestra de 131 participantes.
Com prevalência obtida do piloto de 11%, nível de confiança de 95% e erro de 5%, delimitou-se amostra com 131 participantes.