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Table 1 Demographics and clinical characteristics

From: Early versus late surgery after cervical spinal cord injury: a Japanese nationwide trauma database study

Variables Early group (n = 291) Late group (n = 223) p value
Age, years 65.0 (51.3–73.0) 65.0 (53.3–76.0) 0.50
Male, sex 240/290 (82.8) 185/223 (83.0) 0.95
Prehospital sBP 123 (100–144) 128 (106–147) 0.75
Prehospital PR 74 (63–84) 72 (64–83) 0.97
Prehospital RR 18 (18–24) 20 (18–24) 0.33
sBP on arrival 124 (106–143) 132 (109–152) 0.04
PR on arrival 70 (60–82) 70 (62–83) 0.88
RR on arrival 20 (16–22) 20 (16–23) 0.43
Body temperature on arrival 36.1 (35.4–36.7) 36.3 (35.6–36.8) 0.84
GCS on arrival 15 (14–15) 15 (14–15) 0.54
Injury Severity Score 16.5 (16.0–25.0) 16.0 (14.0–21.8) < 0.01
Cervical Abbreviated Injury Score < 0.01
 2 14/291 (4.8) 15/223 (6.7)  
 3 46/291 (15.8) 57/223 (25.6)  
 4 124/291 (42.6) 103/223 (46.2)  
 5 107/291 (36.8) 48/223 (21.5)  
Cause of injury 0.96
 Traffic accident 72/290 (24.8) 56/221 (25.3)  
 Fall 189/290 (65.2) 146/221 (66.1)  
 Sports 12/290 (4.1) 8/221 (3.6)  
Others 17/290 (5.9) 11/221 (5.0)  
  1. Data given as number of positive observations/total number of observations (percentage) or as median (interquartile range). For each variable, the number of missing observations can be obtained as the difference between the total number of patients in each phase and the total number of observations. sBP systolic blood pressure, PR pulse rate, RR respiratory rate, GCS Glasgow Coma Scale