TABLE 2.

Phenotypic characteristics and statistical analysis of PB and RB isolates

PhenotypeMeanSimple logistic regressionMultiple logistic regressiona
PB isolates (n = 18)RB isolates (n = 18)OR (95% CIb)POR (95% CI)P
hNP-1 (% survival)40.9 ± 20.8025.6 ± 15.622.25 (1.06-4.79)0.0233.51 (1.05-11.8)0.042
tPMPs (% survival)45.9 ± 17.9523.1 ± 15.331.08 (1.03-1.14)<0.0011.09 (1.02-1.16)0.004
Fibronectin binding (A570)0.42 ± 0.130.47 ± 0.090.03 (0.00-15.83)0.25
Endothelial cell binding (% binding)12.6 ± 4.5012.5 ± 2.881.00 (0.84-1.19)0.97
Biofilm formation (A490)1.07 ± 0.510.76 ± 0.463.55 (0.86-14.65)0.06417.04 (1.11-262)0.042
  • a Model P < 0.0001; pseudo R2 = 0.486.

  • b OR, odds ratio; CI, confidence interval.