Table 3.

Comparison of MICs of AZI, MIN, and MXF in Chlamydia Trachomatis Clinical Strains with and without Previous Amoxicillin Exposure

Antibiotics	Previous Amoxicillin Exposure	No Previous Amoxicillin Exposure	U	P valuea
	Median MIC (IQR)(μg/mL)	Median MIC (IQR)(μg/mL)
AZI	0.5 (0.25–1)	0.25 (0.125–0.5)	246	0.001
MIN	0.128 (0.064–0.128)	0.032 (0.032–0.064)	193.5	<0.001
MXF	0.12 (0.12–0.24)	0.06 (0.06–0.12)	106.5	<0.001

Notes: ^a P values were computed using the Mann–Whitney U-test.

Abbreviations: MIC, minimal inhibitory concentration; IQR, interquartile range; AZI, azithromycin; MIN, minocycline; MXF, moxifloxacin.