Estimated susceptibility (coverage) probability for each antibiotic in the validation set with example cases. y/o, year old; M, male; F, female; CHF, congestive heart failure; DM, diabetes; ESBL, extended-spectrum beta-lactamase; UTI, urinary tract infection; cipro, ciprofloxacin; TMP/SMX, trimethoprim-sulfamethoxazole.