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The summary of the beta lactams with pooled estimates, heterogeneity and bias assent.
| Type of antimicrobial | Pooled resistance rate | Heterogeneity% (I2) | 95%CI | Bias(Egger's test) |
|---|---|---|---|---|
| Penicillin | 75 | 77.41 | 59–91 | b = 0.63, P = 0.7653 |
| Amoxicillin | 67 | 55.46 | 54–80 | b = 1.37; P = 0.3364 |
| Ampicillin | 50 | 96.17 | 29–71 | b = 0.37; P = 0.2364 |
| Cephalosporin | 57 | 0.00 | 45–69 | b = −12.32; P = 0.001 |
