Knee pain and driving duration: a secondary analysis of the Taxi Drivers' Health Study.
OBJECTIVE
We explored a postulated association between daily driving time and knee pain.


METHODS
We used data from the Taxi Drivers' Health Study to estimate 1-year prevalence of knee pain as assessed by the Nordic musculoskeletal questionnaire.


RESULTS
Among 1242 drivers, the prevalence of knee pain, stratified by duration of daily driving (< or = 6, > 6 through 8, > 8 through 10, and > 10 hours), was 11%, 17%, 19%, and 22%, respectively. Compared with driving 6 or fewer hours per day, the odds ratio of knee pain prevalence for driving more than 6 hours per day was 2.52 (95% confidence interval = 1.36, 4.65) after we adjusted for socioeconomic, work-related, and personal factors in the multiple logistic regression.


CONCLUSIONS
The dose-related association between driving duration and knee pain raises concerns about work-related knee joint disorders among professional drivers.
Chen
Jiu-Chiaun
JC
Occupational Health Program, Department of Environmental Health, Harvard School of Public Health, Boston, MA 02215, USA.
Dennerlein
Jack T
JT
Shih
Tung-Sheng
TS
Chen
Chiou-Jong
CJ
Cheng
Yawen
Y
Chang
Wushou P
WP
Ryan
Louise M
LM
Christiani
David C
DC
D000041:Absenteeism; D000328:Adult; D001334:Automobile Driving; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007588:Job Satisfaction; D007719:Knee Joint; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology* / Q000209:etiology / Q000523:psychology; D010146:Pain / Q000453:epidemiology* / Q000209:etiology / Q000523:psychology; D011159:Population Surveillance; D015995:Prevalence; D011634:Public Health; D012307:Risk Factors; D012680:Sensitivity and Specificity; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D013624:Taiwan / Q000453:epidemiology; D013997:Time Factors; D014504:Urban Health / Q000706:statistics & numerical data; D016526:Workload