highly significantP < 0.0001
We observed moderate but highly significant agreement between positivity by SBP1 and REX1 (agreement = 75.4%, kappa = 0.33; P < 0.0001) and PHISTb and REX1 (agreement = 86.4%, kappa = 0.15; P < 0.001) and lower agreement between SBP1 and PHISTb (agreement = 71.1%, kappa = 0.12; P < 0.0001) ( Table 4 ).