Table 1 Demographics, clinical and psychological variables

From: Too hard to control: compromised pain anticipation and modulation in mild traumatic brain injury

 

18 HC (M)

18 MTBI (M)

Statistics

 

Mean

s.d.

Mean

s.d.

t/ χ 2

P

Demographic variables

 Age (years)

28.6

8.7

28.7

7.1

0.02

0.98

 Education (years)

14.6

1.1

14.1

1.1

1.5

0.14

 Marital status, N

Married/living w/partner

6

 

2

 

8.18

<0.05

Single

12

 

10

   

Separated/divorced

0

 

6

   

 Race, N

African-American

1

 

3

 

2.91

0.40

Asian

1

 

0

   

Caucasian

8

 

10

   

Other

8

 

5

   

Clinical variables

 Time since most severe MTBI (year)

NA

 

4

2

  

 Number of MTBIs

NA

 

4

4

  

 Loss of consciousness (<1min)

NA

 

N=3

   

Psychological variables

 Clinician-administered PTSD scale

0.2

0.9

36.4

12.8

12.2

<0.01

 Beck Depression Inventory-2

1.0

2.0

3.9

4.0

2.8

<0.01

 STAI-Y

STAI-Y statea

26.0

6.5

37.8

12.4

3.6

<0.01

STAI-Y traitb

28.2

5.7

35.9

11.8

2.4

<0.05

Post-scanner ratings c

 Low-pain intensity

1.5

1.6

1.9

1.9

0.6

0.55

 High-pain intensity

3.8

2.6

3.9

2.6

0.3

0.80

  1. Abbreviations: HC, healthy controls; MTBI, mild traumatic brain injury; NA, not applicable; PTSD, post-traumatic stress disorder; STAI, Spielberger State-Trait Anxiety Inventory.
  2. aMissing data in one MTBI subject.
  3. bMissing data in one MTBI and one HC subject.
  4. cScale range from 0 to 10 (see text for details).