As for the subjects' age, two were between 21 and 30 years old, five were between 31 and 40, five between 41 and 50, eight between 51 and 60 and two over 61.
En cuanto al intervalo de edad de los investigados, dos estaban entre 21 y 30 años, 5 entre 31 y 40, 5 entre 41 y 50, ocho entre 51 y 60, y dos sobre los 61 años.
Quanto à faixa etária dos pesquisados, dois estavam entre 21 e 30 anos, cinco de 31 a 40, 5 de 41 a 50, oito entre 51 e 60, e dois acima dos 61 anos.