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Table 5 Logistic regression models

From: Acute behavioral changes as a diagnostic factor of intracranial injuries among the elderly population with mild traumatic brain injury - retrospective cross-sectional study

Model 1: without alcohol intoxication

Model 2: with alcohol intoxication

Characteristic

OR

95% CI

p-value

Characteristic

OR

95% CI

p-value

Sex

   

Sex

   

 Male

---

---

 

 Male

---

---

 

 Female

1.51

0.73, 3.09

0.3

 Female

1.27

0.59, 2.73

0.5

Age

0.98

0.94, 1.03

0.5

Age

0.99

0.95, 1.04

0.7

Acute behavioral changes

   

Acute behavioral changes

   

 No behavioral change

---

---

 

 No behavioral change

---

---

 

 Behavioral Change Present

6.98

3.26, 14.6

< 0.001

 Behavioral Change Present

6.51

3.01, 13.7

< 0.001

    

Mechanism of injury

   
    

 Non-alcohol related

   
    

 Alcohol intoxication

1.88

0.76, 4.46

0.2

Pseudo R-squared for model 1:

Pseudo R-squared for model 2:

Log-likelihood

-119.665

  

Log-likelihood

-118.717

  

Null Log-likelihood

-132.315

  

Null Log-likelihood

-132.315

  

G2 (Likelihood Ratio Test Statistic)

25.299

  

G2 (Likelihood Ratio Test Statistic)

27.195

  

McFadden’s R-squared

0.096

  

McFadden’s R-squared

0.103

  

ML R-squared

0.043

  

ML R-squared

0.045

  

Cox & Snell’s R-squared

0.116

  

Cox & Snell’s R-squared

0.125