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. 2026 Mar 23;34:e20250771. doi: 10.1590/1678-7765-2025-0771

Table 2. Findings of clinical variables for highly consistent ADHD symptoms (G1) and controls (G2). Frequencies (n and %) are presented for nominal variables, and means with confidence intervals are provided for numerical variables.

  Groups  
  G1 G2 p
  (n=60) (n=30)  
Painful TMD      
Yes 54 (90) 14 (46.7) 0.0001*
No 6 (10) 16 (53.3)  
Headache      
Yes 50 (83.3) 14 (46.7) 0.0001*
No 10 (16.7) 16 (53.3)  
Self-reported Bruxism      
Yes 52 (86.7) 15 (50) 0.001*
No 8 (13.3) 15 (50)  
Self-reported SB      
Yes 19 (31.7) 6 (20) 0.28
No 41 (68.3) 24 (80.0)  
Self-reported AB      
Yes 49 (81.7) 15 (50.0) 0.003*
No 11 (18.3) 15 (50.0)  
Stimulant medications      
Yes 21 (35.0) - ----
No 14 (23.3) -  
Antidepressant medications      
Yes 14 (23.3) - ----
No 21 (35.0) -  
CPI 35.3 (28.5-42.2) 9.8 (2.9-16.6) 0.0001*
Oral Behaviors      
OBC total 31.2 (28.2-34.1) 19.9 (15.0-24.8) 0.001*
Normal 3 (5) 12 (40)  
Moderate 13 (21.6) 6 (20)  
Severe 44 (73.3) 12 (40)  

TMD: Temporomandibular Disorders; SB: sleep bruxism; AB: awake bruxism; CPI: Characteristic Pain Intensity; OBC: Oral Behavior Checklist.