Table 1.
MLVA-8 Orsay data and comparison of PFGE, MLST and MLVA discriminatory power in endemic and epidemic Acinetobacter baumannii PFGE types
| MLVA locus or Genotyping technique | Repeat size (bp) | No. of repeats mode (no. of repeats range) | Alleles or no. of genotypes | HGDI a | CI (95%) b |
|---|---|---|---|---|---|
| Abaum_3530 | 60 | 6 (6 – 7) | 2 | 0.502 | (0.499, 0.508) |
| Abaum_3002 | 57 | 8 (7 – 8) | 2 | 0.496 | (0.482, 0.510) |
| Abaum_2240 | 99 | 4 (2 – 5) | 3 | 0.345 | (0.275, 0.415) |
| Abaum_1988 | 77-80 | 2 (2 – 3) | 2 | 0.641 | (0.617, 0.665) |
| Abaum_0826 | 9 | 13 (9 – 20) | 9 | 0.833 | (0.813, 0.853) |
| Abaum_0845 | 7 | 44 (2 – 44) | 9 | 0.819 | (0.795, 0.843) |
| Abaum_2396 | 6 | 12 (10 – 29) | 9 | 0.807 | (0.777, 0.837) |
| Abaum_3468 | 6 | 9 (8 – 11) | 4 | 0.658 | (0.625, 0.691) |
| PFGE | 15 | 0.880 | (0.858, 0.902) | ||
| MLST | 4 | 0.655 | (0.624, 0.686) | ||
| MLVA-8 | 17 | 0.883 | (0.863, 0.903) |
aHunter-Gaston diversity index (HGDI) calculations were performed taking into account all 231 isolates in the studied 15 PFGE types, except for Abaum_0845 (N = 210), owing to the lack of amplification in EE14 and EE15.
bHGDI 95% confidence interval.