Fig. 1

Distribution of drug expenditure for ten major drug classes per HMO member in 1998 and 2014. The overall distribution differed significantly between 1998 and 2014 (P < 0.001)
Distribution of drug expenditure for ten major drug classes per HMO member in 1998 and 2014. The overall distribution differed significantly between 1998 and 2014 (P < 0.001)