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Table 2 Comparison between the groups with local and systemic symptoms

From: Clinical characteristics of redback spider bites

  Limited to local (n= 18) Systemic (n= 10) Pvalue
Age (years) 30.5 (10.8–52.3) 32.5 (18.5–59.8) 0.49
 >65, n (%) 3 (16.7) 1 (10) 1.00
 <15, n (%) 5 (27.8) 1 (10) 0.37
Gender, male, n (%) 6 (33.3) 5 (50) 0.44
Bite site    0.12
 Hand 11 (61.1) 1 (10)  
 Forearm 2 (11.1) 3 (30)  
 Other/unknown 5 (27.8) 6 (60)  
Vital signs on admission    
 SBP (mmHg) 135 (111–156) 130 (125–136) 0.67
 BT (°C) 36.9 (36.4–37.1) 36.7 (36.5–36.8) 0.59
Laboratory data    
 WBC (/mm3) 7,697 (5,398–9,550) 9,000 (7,350–9,750) 0.46
 Platelet count (×104/mm3) 23.3 (17.8–30.4) 23.6 (18.0–28.9) 0.88
 CK (IU/L) 123 (65–169) 159 (85–190) 0.62
 AST (IU/L) 35 (23–51) 28 (22–61) 0.77
Treatment    
 Antivenom, n (%) 2 (11.1) 4 (40) 0.15
 Analgesics, n (%) 5 (27.8) 3 (30) 1.00
Outcome    
 Hospital admission, n (%) 1 (5.6) 3 (30) 0.12
 ICU admission, n (%) 0 (0) 1 (10) 0.36
  1. Data are presented as median (interquartile range, IQR) for continuous variables and n (percentage) for categorical variables.
  2. SBP systolic blood pressure; BT body temperature; WBC white blood cell; CK creatine kinase; AST aspartate aminotransferase.