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Table 1 Demographic and clinical characteristics of 220 patients with delayed hemothorax

From: Comparing complications of small-bore chest tubes to large-bore chest tubes in the setting of delayed hemothorax: a retrospective multicenter cohort study

Variable, n(%)Large-Bore(n = 60)Small-Bore (n = 160)P
Male51 (85%)112 (70%)0.02
Age, years  0.67
 18 to 296 (10%)13 (8%) 
 30 to 4910 (17%)38 (24%) 
 50 to 6925 (42%)69 (43%) 
 70 to 8918 (30%)36 (23%) 
 90+1 (2%)4 (3%) 
Injury type  0.11
 Blunt54 (95%)158 (99%) 
 Penetrating3 (5%)2 (1%) 
Highest chest AIS value  0.28
  < 34 (9%)20 (15%) 
  ≥ 343 (91%)117 (85%) 
Injury severity scale  0.57
 0 to 803 (2%) 
 9 to 1521 (35%)68 (43%) 
 16 to 2524 (24%)53 (33%) 
 26+15 (25%)35 (22%) 
ED Glasgow coma scale  0.22
 3 to 88 (16%)14 (9%) 
 9 to 122 (4%)3 (2%) 
 13 to 1541 (80%)140 (89%) 
ED vital signs a   
 Normal pulse27 (71%)11 (70%)0.86
 Normal respiratory rate38 (75%)121 (79%)0.55
 Normal body temperature23 (48%)62 (47%)0.94
 Normal systolic blood pressure8 (20%)473 (30%)0.21
Coagulation comorbidity b10 (17%)31 (19%)0.65
Bilateral chest tubes1 (2%)2 (1%)0.81
Tube placement, side of chest c  0.68
 Right34 (49%)98 (52%) 
 Left36 (51%)91 (48%) 
Median (IQR) time from admission until first chest tube, hours c111 (80–192)109 (80–176)0.56
  1. AIS, abbreviated injury scale; ED, emergency department; IQR, interquartile range. Column totals may not add to group total due to missing data
  2. a Normal pulse (60–100 beats per minute); normal respiratory rate (12–20 breaths per minute); normal body temperature (36.6–37.2 C); normal blood pressure (SBP 90–120 mmHg)
  3. b Coagulation comorbidity defined as alcoholism, bleeding disorder, on clopidogrel, coagulation disorder
  4. c Calculated based on each tube