Table 5

Minimum inhibitory concentration (MIC) differences of three groups

Antibiotics	Group 1 (n=93)	Group 2 (n=53)	Group 3 (n=81)	P value
Azithromycin	0.032 (0.016–0.19)	0.023 (0.016–0.032)*	0.023 (0.016–0.032)*	0.050
Clarithromycin	0.047 (0.016–0.125)	0.023 (0.016–0.032)†	0.023 (0.016–0.032)†	0.074
Clindamycin	0.047 (0.023–0.125)	0.023 (0.016–0.032)†	0.023 (0.016–0.043)†	0.021
Erythromycin	0.032 (0.02–0.11)	0.016 (0.016–0.047)*	0.020 (0.016–0.032)*	0.053
Doxycycline	0.125 (0.047–0.38)	0.047 (0.032–0.125)*	0.032 (0.032–0.125)*	<0.001
Tetracycline	0.250 (0.094–0.38)	0.064 (0.047–0.25)†	0.064 (0.047–0.25)†	<0.001

The values were MIC (μg/mL) and were expressed as median (IQR).
*P<0.05 versus group 1.
†P<0.001 versus group 1.