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Table 2 Comparison of effective rate and clearance rate in different groups

From: Efficacy and safety of polymyxin B in carbapenem-resistant gram-negative organisms infections

Group n Effective rate (n (%)) P-value Clearance rate (n (%)) P-value
Infection types
 Pneumonia 104 (44.2) 46 (44.2%) 0.395 35 (33.7%) 0.387
 Bloodstream infection 36 (44.2) 13 (36.1%)   15 (41.7%)  
Prognosis
 Survival 74 (44.2) 71 (95.9%) ≤ 0.001 56 (75.7%) ≤ 0.001
 Death 107 (44.2) 19 (17.8%)   20 (18.7%)  
Time from carbapenem resistance to PB use (h)
 < 24 55 (44.2) 33 (60.0%) 0.008 30 (54.5%) 0.016
 > 24 93 (44.2) 35 (37.6%)   32 (34.4%)