Characteriastics Argentina Colombia P Arg vs Col n No Self Self % P n No Self Self % P   Gender 379 282 97 25.6   191 142 49 25.7     Male 162 108 54 33.3 0.004 114 82 32 28.1 0.404 0.37 Female 217 174 43 19.8 77 60 17 22.1 0.6 Age group 379         190           18-30 106 76 30 28.3 0.535 41 25 16 39 0.156   31-50 116 83 33 28.4 86 66 20 23.2   51-70 100 78 22 22 44 34 10 22.7   70 or older 57 45 12 21 19 16 3 15.8   Education 343         171           Elementary School 92 73 19 20.6 0.146 33 21 12 36.4 0.247   High School 157 118 39 24.8 96 69 27 28.1   University/College 94 63 31 33 42 34 8 19

Table 1: Self-medication according to socio-demographic characteristics.