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Table 2 General information statistics

From: Mechanical ventilation-associated pneumonia caused by Acinetobacter baumannii in Northeast China region: analysis of genotype and drug resistance of bacteria and patients’ clinical features over 7 years

  Total (105) CRAB (68) CSAB (37)  
Gender (male,%) 58 (55.2) 39 (57.3) 19 (51.4)  
Age (m) 27 (6, 60) 32 (7, 60) 24 (4, 72) P = 0.497
Specimen source (%)     
Sputum 75 (71.4) 47 (69.1) 28 (75.7)  
Endotracheal tube 16 (15.2) 14 (20.5) 2 (5.4)  
Alveolar lavage fluid 7 (6.7) 5 (7.3) 2 (5.4)  
Others 7 (6.7) 2 (2.8) 5 (13.5)  
PELOD2 score (Admitted within 24 h), M (IQR) 2 (0, 5) 3 (0, 5) 2 (1, 3) P = 0.17
Primary disease was infectious or not     
Yes 81 (77.1) 51 (75.0) 30 (81.1) P = 0.628
No 24 (22.9) 17 (25.0) 7 (18.9)  
Classification of primary disease (%)     
Pulmonary infection 58 (55.2) 33 (48.5) 25 (67.6)  
Intracranial infection 16 (15.2) 12 (17.6) 4 (10.8)  
Sepsis 8 (7.6) 6 (8.8) 2 (5.4)  
Trauma 11 (10.5) 10 (14.7) 1 (2.7)  
Others 12 (11.4) 7 (10.3) 5 (13.5)  
Underlying disease     
Yes 52 (49.5) 33 (48.5) 19 (51.4) P = 0.84
No 53 (50.5) 35 (51.5) 18 (48.6)  
Classification of underlying diseases (%)     
Heart diseases 18 (17.1) 12 (17.6) 6 (16.2)  
Muscle diseases 12 (11.4) 6 (8.8) 6 (16.2)  
Metabolic diseases 5 (4.8) 5 (7.4) 0  
Respiratory malformation 5 (4.8) 4 (5.9) 1 (2.7)  
Blood diseases and tumors 5 (4.8) 3 (4.4) 2 (5.4)  
Multiple malformations 5 (4.8) 4 (5.9) 1 (2.7)  
Other invasive operations (%)     
Deep vein catheterization 40 (38.1) 34 (50) 6 (16.2)  
Bronchonscope 18 (17.1) 14 (20.6) 4 (10.8)  
CRRT 11 (10.5) 7 (10.3) 4 (10.8)  
Thoracocentesis 19 (18.1) 15 (22.1) 4 (10.8)  
Peritonrocentesis 2 (2.0) 2 (2.9) 0  
Catheterization 63 (60.0) 46 (67.6) 17 (45.9)  
Surgery 28 (26.7) 21 (30.9) 7 (18.9)  
Total mechanical ventilation time (h), M (IQR) 94 (1, 270) 215 (119.5, 370.5) 136 (64, 300) P = 0.035
Total antibiotic use time (d), M (IQR) 22 (18, 31) 22.5 (17, 34) 22 (18, 26) P = 0.207
Total hospital stay (d), M (IQR) 39 (22, 64) 41 (24, 59) 35 (19, 64) P = 0.487
Major tests within 48 h of Ab positive, M (IQR)     
WBC (109/L) 10.6 (7.3, 14.6) 9.5 (6.5, 14.4) 11.1 (8.5, 16.7) P = 0.145
CRP (mg/L) 16.8 (6.3, 68.7) 17.8 (7.5, 75.3) 14.2 (5.1, 51.6) P = 0.388
PCT (ng/ml) 1.0 (0.3, 6.2) 1.4 (0.3, 6.2) 0.7 (0.3, 3.4) P = 0.544
Hb (g/L) 92 (82, 105) 92 (82, 104) 91 (83.5, 104) P = 0.817
PLT (109/L) 266.5 (133.5, 430.5) 261 (127, 435) 306 (156.9, 408) P = 0.58
Mechanical ventilation time after Ab positive (h), M (IQR) 94 (24, 245) 62 (23.5, 268) 112 (24, 220) P = 0.936
Antibiotic use time after Ab positive (d), M (IQR) 10 (5, 19) 11.5 (5.5, 23.5) 8 (5, 12) P = 0.043
Length of hospital stay after Ab positive (d), M (IQR) 21 (10, 39) 20.5 (8.5.39) 26 (13, 38) P = 0.407
Outcome     
Survive 78 (74.3) 48 (70.6) 28 (75.7) P = 0.652
Dead 29 (25.7) 20 (29.4) 9 (24.3)  
  1. The bold represent statistically significant
  2. The p-value was the result of comparing the CRAB and CSAB group