TABLE 5.

Paired t test P value results for LHB-supplemented media

Antimicrobial agent	Paired t test P value results for LHB-supplemented mediab
	Site 1 vs site 2	Site 1 vs site 3	Site 2 vs site 3
Amox-clav acida	<0.0001	0.0332	0.9460
Azithromycin	0.0008	0.0367	0.6595
Cefaclor	<<0.0001	<0.0001	0.3890
Cefdinir	<<0.0001	0.6150	0.0003
Cefixime	<<0.0001	<0.0001	0.7870
Cefprozil	<<0.0001	<<0.0001	0.0041
Ceftriaxone	<<0.0001	0.0825	0.2351
Cefuroxime	<<0.0001	<0.0001	0.0078
Chloramphenicol	<<0.0001	0.0186	0.0301
Ciprofloxacin	0.1583	0.0590	0.0177
Clarithromycin	0.1583	0.0495	0.0059
Doxycycline	<<0.0001	0.0001	<<0.0001
Erythromycin	<0.0001	0.7962	0.0039
Gemifloxacin	1.0000	0.1583	0.1583
Grepafloxacin	0.0832	0.0003	<0.0001
Levofloxacin	0.0246	0.0001	<0.0001
Ofloxacin	0.0042	<0.0001	<0.0001
Trovafloxacin	0.4823	0.0070	0.0016

^aAmox-clav acid, amoxicillin-clavulanic acid.

^bMN LHB NAD in sites 1 and 2; IST LHB NAD in site 3. Critical values of significance were P < 0.0003, which was based on P < 0.05 with Bonferroni correction for multiple tests, and are shown in boldface. Additionally, P < 10⁻⁹ values were regarded as highly significant (shown as <<0.0001 values).