1 = GC
2 = GI

1 = Hombre
2 = Mujer

1 = Sin Estudios
2 = Estudios primarios
3 = estudios secundarios
4 = Universitarios

1 = Fumador
2 = Exfumador
3 = Nofumador

2 = DM

1 = Nor,mal
2 = mild reduction
3 = moderate/sever reduction

1 = low
2 = Moderate
3 = High