Table 2.

Cross-Sectional Studies That Found an Association between Occupational Exposure and CTS

AuthorNo. of Patients.SettingMeasurement of Occupational ExposureCTS Diagnostic CriteriaControlling of confounding factorsResultComment
Chiang et al 21207Two frozen food plantsObservationS, PE, NCVAge, gender, length of employmentStrongly positive association between repetition and CTS (OR = 7.40)Excluded the subjects with medical condition that can cause CTS
Latko et al26352Three companiesObservationS, PE, NCVAge, genderPositive association with repetition (OR = 3.1)
Osorio et al2056Grocery storeObservationS, PE, NCVAge, gender, alcohol assumption and high-risk medical historyStrongly positive association (OR = 6.7)
Silverstein et al14652Active workers in 39 jobs from 7 different industrial sitesObservation, (EMG) recordingsS, PEDemographic information including age, gender, years on the job, etcStrongly positive association between high force-high repetitive job and CTS prevalence (OR = 15)CTS diagnosis was not confirmed by NCV
Stetson et al16345Industrial workersObservation and workers interviewS, NCVAge, height, skin temperature and finger circumferencePositive association between ergonomic factors and NCV finding
Werner et al25184Six work sitesObservationS, NCVDemographic, anthropometric, history of diabetes and psychosocial factorsPositive association
  • CTS, carpal tunnel syndrome; EMG, electromyelogram; S, self-report; PE, physical examination; NCV, nerve conduction velocity.