Fig. 3
a–c Prevalence of drug co-administrations and (d-f) interactions by age and gender for Blumenau, Catalonia, and Indianapolis in the first 18 months of administration. Red and blue colors denote the prevalence in women and men, respectively. Relative risks of co-administration and interaction for women per age group are displayed above the points. Asterisks denote significant differences (Fisher’s exact test)