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Table 4 Correlations among score level and categorical perioperative variables (p < 0.001)

From: May predictors of difficulty in thyroid surgery increase the incidence of complications? Prospective study with the proposal of a preoperative score

  Low risk
(115 pts)
Medium risk
(19 pts)
High risk
(30 pts)
p value
Complications     0.52
 ▪ No 92 17 23  
 ▪ Yes 23 2 7  
Hemorrhage 1 0 2  
Hypoparathyroidism 21 2 5  
RLN lesion 1 0 0  
Length of hospitalization     0.85
 ▪ 2 days 75 12 21  
 ▪ >  2 days 40 7 9  
Duration of the operation     0.00001
 ▪ ≤ 95 min 72 6 5  
 ▪ >  95 min 43 13 25  
  Low risk
(115 pts)
  Medium/high risk (49 pts)  
Duration of the operation     0.000002
 ▪ ≤ 95 min 72   11  
 ▪ >  95 min 43   38