Table 2.
Gram-negative bacteria | No. of studies | No. of isolates | No. of ESBL-positive isolates | ESBL Proportion [95% CI] |
I2 (p-value) |
---|---|---|---|---|---|
Klebsiella spp. | 10 | 400 | 263 | 0.66 [.61; .70] | < 0.001 |
Enterobacter spp. | 6 | 53 | 33 | 0.61 [.47; .74] | < 0.001 |
Salmonella spp. | 5 | 186 | 90 | 0.48 [.33; .63] | < 0.001 |
E. coli | 10 | 815 | 383 | 0.47 [.44; .50] | < 0.001 |
Citrobacter spp. | 5 | 47 | 22 | 0.47[.33;,63] | 0.001 |
Providencia spp. | 3 | 16 | 7 | 0.44 [.20; .70] | 0.011 |
Proteus spp. | 6 | 53 | 15 | 0.28 [.16; .42] | 0.053 |
Pseudomonas aeruginosa | 2 | 23 | 4 | 0.17 [.05; .39] | 0.386 |
Acinetobacter spp. | 3 | 32 | 3 | 0.09 | – |
Othersa | 5 | 24 | 5 | 0.09 [.02;.25] | 0.142 |
Total | 1649 | 825 | 0.25 [.09; .49] | < 0.0001 |
aOthers: Alcaligenes faecalis (1 ESBL of 3 isolates), Morganella morganii (3 ESBL of 12 isolates); Stenotrophomonas maltophilia (1 ESBL of 4 isolates), Escherichia hermanii (1 ESBL of 1 isolates)