Table 1 Comparison between patients with cocaine use disorder and healthy controls.

From: Enhanced peripheral levels of BDNF and proBDNF: elucidating neurotrophin dynamics in cocaine use disorder

 

Cocaine consumption N (%)

P-value

Yes

No

 

28

38

 

Gender

  

0.385a

  Female

1 (3.57%)

4 (10.53%)

 

  Male

27 (96.43%)

34 (89.47%)

 

Age, years

   

  Mean (SD)

37.93 (7.89)

39.47 (11.49)

0.519b

Having sons (N= 61)

  

0.110c

  No

11 (42.31%)

22 (62.86%)

 

  Yes

15 (57.69%)

13 (37.14%)

 

Marital Status (N= 61)

  

0.604a

  Single

13 (50.00%)

22 (62.86%)

 

  Married

12 (46.15%)

12 (34.29%)

 

  Divorced

1 (3.85%)

1 (2.86%)

 

Employment (N= 60)

  

1.000c

  No

5 (20.00%)

7 (20.00%)

 

  Yes

20 (80.00%)

28 (80.00%)

 

Psychopharmaceuticals intake (N= 64)

  

<0.001a

  No

17 (65.38%)

38 (100.00%)

 

  Yes

9 (34.62%)

0 (0.00%)

 

Previous psychiatric hospitalizations (N= 64)

  

0.013a

  No

22 (84.62%)

38 (100.00%)

 

  Yes

4 (15.38%)

0 (0.00%)

 

Previous psychiatric diagnoses (N= 65)

  

<0.001a

  No

16 (59.26%)

38 (100.00%)

 

  Yes

11 (40.74%)

0 (0.00%)

 

Smoking habit

  

0.513c

  No

11 (39.29%)

18 (47.37%)

 

  Yes

17 (60.71%)

20 (52.63%)

 

BDNF levels (pg/ml)

  

<0.001d

  Mean (SD)

18092.80 (6844.62)

11334.42 (5061.85)

 

ProBDNF levels (ng/ml)

  

<0.001b

  Mean (SD)

87.03 (33.23)

55.70 (23.26)

 

ProBDNF/BDNF Ratio per mille

  

0.559e

  Median (IQR)

4.74

5.04

 

  (4.40, 5.15)

 

(4.12, 6.69)

 
  1. BDNF brain-derived neurotrophic factor, IQR interquartile range, SD standard deviation.
  2. aFisher’s exact test.
  3. bStudent’s t test, unequal variance.
  4. cPearson’s chi-squared test.
  5. dStudent’s t test, equal variance.
  6. eMann–Whitney U test.