Association between variables: database

Question

I have the following database:

id Acidente    id_Vitima    Sexo_Vitima   Faixa_etaria    Gravidade_acidente
1               1             1               7              2
2               1             1               6              1
2               2             2               8              1
3               1             2               6              3
3               1             2               2              3
3               1             2               7              3
3               1             2               7              3

I intend to perform an association analysis between variable Gravidade_acidente and the variable Sexo_Vitima.

My question is that the database has id Acidente repeated and do not know if I can make association analysis with the data in this form or create a new database without repetition of id Acidente.