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Table 1 The distribution of the age-matched participants divided by biopsy technique and sex

From: Expression of 5-HT3 receptors and TTX resistant sodium channels (NaV1.8) on muscle nerve fibers in pain-free humans and patients with chronic myofascial temporomandibular disorders

 

Microbiopsy

Traditional open biopsy

Healthy -Masseter

Healthy - Tibialis

Healthy

Patients

Number of participants

    

All

12

14

5

5

Men

6

7

0

0

Women

6

7

5

5

Age

    

All

34.6 (±10.1)

37.4 (±11.8)

52.0 (±8.5)

50.4 (±8.2)

Men

34.8 (±9.9)

37.7 (±11.9)

-

-

Women

34.3 (±11.2)

37.1 (±12.6)

52.0 (±8.5)

50.4 (±8.2)

Duration of pain

   

Men

  

-

Women

  

3.0 (±2.6)

Intensity of pain

   

Men

  

-

Women

  

5.0 (±1.25)

Co-morbid headache

   

Men

  

-

Women

  

5

  1. The table displays the number (n) of participants, their mean (±SD) age (years), median (IQR) duration of pain (years), current median (IQR) intensity of pain (NRS), as well as number (n) of patients with co-morbid headache. The 12 participants in the microbiopsy masseter group are the same individuals as the 12 out of the 14 in the tibialis group.
  2. NRS = Numeric rating scale (0–10).
  3. IQR = Interquartile range (75 percentile minus 25 percentile).