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Table 2 The prevalence of temporomandibular disorders (TMD) according to work-related factors

From: The associations between work-related factors and temporomandibular disorders among female full-time employees: findings from the Fourth Korea National Health and Nutrition Examination Survey IV (2007–2009)

 

Prevalence of TMD

No N(%)

Yes N(%)

P valuea

Total

1,405

207

 

Occupation

 Manual

445(93.6)

32(6.4)

<  0.001

 Non-manual

960(84.4)

175(15.6)

Working schedule

 Daytime

1,208(86.7)

180(13.3)

0.600

 Shift work

197(88.2)

27(11.9)

Employment status

 Regular

1,009(86.2)

155(13.8)

0.198

 Temporary

396(88.8)

52(11.2)

Working hours (hrs/wk)

  < 40

244(92.0)

25(8.0)

0.011

 40–48

752(87.4)

107(12.6)

 49–60

283(84.8)

48(15.2)

  > 60

126(80.2)

27(19.8)

  1. aχ2 test
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Annals of Occupational and Environmental Medicine

ISSN: 2052-4374

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