TABLE II. Evaluation of agreement among methods.
Tests (n)a | k | SE | Agreementb |
---|---|---|---|
CPT vs. APT (54) | 0.833 | 0.080 | Almost perfect agreement |
CPT vs. recA PCRc(54) | 0.833 | 0.080 | Almost perfect agreement |
APT vs. recA PCR (54) | 0.921 | 0.055 | Almost perfect agreement |
MALDI-TOF vs. recASeqd (36) | 0.942 | 0.057 | Almost perfect agreement |
RFLPe vs. recA Seq (36) | 0.592 | 0.099 | Moderate agreement |
a: number of isolates tested by each test;b: adapted interpretation criteria (Landis & Koch 1977);c: amplification of recA;d: sequencing of recA;e: HaeIII-restriction fragment length polymorphism (RFLP) recA; APT: automated phenotypic tests; CPT: conventional phenotypic tests; k: kappa index; MALDI-TOF: matrix-assisted laser desorption ionization-time of flight; PCR: polymerase chain reaction; SE: standard error.