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Table 2 Characteristics of the patient population

From: Total tenderness score and pressure pain thresholds in persistent post-traumatic headache attributed to mild traumatic brain injury

Characteristics

Persistent PTH (n = 100)

Employment status, %

 Full-time employed

37

 Part-time employed

42

 Unemployed

21

Education

 Years of education, mean (SD), y

15.6 (2.8)

 No education besides completion of secondary school or high school, %

17

 Skilled labor, %

25

 Bachelor´s degree, %

38

 Higher education, %

20

Disease duration, mean (SD), months

49.0 (37.9)

Headache phenotypes, %

 Chronic migraine-like

61

 Episodic migraine-like

1

 Episodic migraine-like combined with chronic TTH-like

25

 Episodic migraine-like combined with frequent TTH-like

2

 Episodic migraine-like combined with infrequent TTH-like

2

 Chronic TTH-like

9

Headache frequency, mean (SD)

 Yearly headache days

307.9 (86.9)

 Monthly headache days

25.4 (7.1)

Migraine-like headache phenotype (n = 91)

 Monthly headache days, mean (SD)

24.9 (127.1)

 Monthly migraine days, mean (SD)

14.5 (10.4)

 Aura, %

8

 Headache quality, %

  Throbbing

20

  Pressing

25

  Stabbing

3

  Combined (throbbing and pressing)

49

  Other headache quality

2

Current use of preventive medications, %

55

ASC-12 scores, mean score (SD)

3.1 (3.5)

 None, %

54

 Mild allodynia, %

23

 Moderate allodynia, %

17

 Severe allodynia, %

6

Global PSQ-I scores, mean score (SD)

8.9 (3.9)

 Poor quality of sleep, %

85

HADS anxiety scores, mean score (SD)

8.3 (4.6)

 Probable or high risk of anxiety, %

52

 Probable risk of anxiety, %

19

 High risk of anxiety, %

33

HADS depression scores, mean score (SD)

6.6 (3.9)

 Probable or high risk of depression, %

42

 Probable risk of depression, %

30

 High risk of depression, %

12

  1. PTH Post-Traumatic Headache, ASC-12 12-item Allodynia Symptom Checklist, PSQ-I Pittsburg Sleep Quality Index, HADS Hospital Anxiety and Depression Scale