Resistance	Microbe	Outcome
Ampicillin /	Escherichia coli	See: Table 2 OR Low CI Odds Ratio OR Upper CI Chlortetracycline use vs. No use 1.51 3.78 9.49
Tetracycline /	Escherichia coli	See: Table 2 OR Low CI Odds Ratio OR Upper CI Chlortetracycline use vs. No use 2.56 14.44 81.45