Resistance	Microbe	Outcome
Ampicillin /	Escherichia coli	See: Table 5 OR Low CI Odds Ratio OR Upper CI Beta-Lactam Use vs. No Beta-Lactam Use 1.60 2.80 5.00
Sulfamethoxazole And Trimethoprim /	Escherichia coli	See: Table 5 OR Low CI Odds Ratio OR Upper CI Beta-Lactam Use vs. No Beta-Lactam Use 2.80 7.90 21.00