Table 1. Gross expenditure on antibacterial drugs (ATC J01 Classification) comparison between Italy, Campania Region, LHANS, and private sector of Costa Rica.

ATC: Anatomical Therapeutic Chemical code, LHANS: Local Health Authority of Naples 3 South

Population studied	ATC J01 Gross expenditure (€) x 1,000 inhabitants/day
Italy	24.99
Campania	42.35
LHANS	51.85
Costa Rica Private Sector	11.92
Comparison	Change %
LHANS vs Italy	107.48
LHANS vs Campania	22.43
LHANS vs Costa Rica	334.98