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Table 2 Characteristics of the subset population, with symptoms of temporomandibular disorders (TMD) as independent variable

From: Does a dose-response relation exist between spinal pain and temporomandibular disorders?

  TMD-0 TMD-1 TMD-2 TMD-3
Number, men/women 89/48 23/21 35/28 12/10
Mean age, men/women (years) 38.5/36.0 37.1/32.3 35.3/35.4 36.7/34.4
Age range, men/women (years) 20–65/23–58 26–58/26–43 20–59/23–56 29–58/31–52
Impact of TMD symptoms on ADL   0.7 1.1 3.0
  1. The Table gives the number of subjects, as well as gender, mean age and age range in the study groups. Mean values (assessed using the 11-point numerical rating scale) of the impact of TMD symptoms on activities of daily living (ADL) are shown. TMD-0 = without symptoms of TMD; TMD-1 = with infrequent symptoms of TMD; TMD-2 = with frequent, mild symptoms of TMD; and TMD-3 = with frequent, severe TMD symptoms.