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Table 3 Prevalence of Spinal Pain of Cases and Controls According to TMD Grade

From: The relationship between spinal pain and temporomandibular joint disorders in Korea: a nationwide propensity score-matched study

 

Total

Non-spinal pain

Spinal pain

p-valueb

N

%a

N

%a

TMD total

 Control

12,375

8148

65.8

4227

34.2

 

 Case

12,375

6411

51.8

5964

48.2

<.0001

TMD grade 1c

 Control

10,951

7224

66.0

3727

34.0

 

 Case

10,951

5828

53.2

5123

46.8

<.0001

TMD grade 2d

 Control

910

589

64.7

321

35.3

 

 Case

910

392

43.1

518

56.9

<.0001

TMD grade 3e

 Control

514

335

65.2

179

34.8

 

 Case

514

191

37.2

323

62.8

<.0001

Difference test between TMD gradesf

   

<.0001

  1. aDenominator: Total TMD patients number or total case/control number by each grade
  2. bAnalysis of difference in spinal pain frequency according to TMD retention by using McNemar test
  3. cTMD grade 1: Outpatient days due to TMD, fewer than 6
  4. dTMD grade 2: Outpatient days due to TMD, more than 6 and fewer than 12
  5. eTMD grade 3: Outpatient days due to TMD, more than 12 or use of hospitalization services
  6. fAnalysis of difference in spinal pain frequency between each TMD grades by using Chi-square test
  7. TMD Temporomandibular Disorder