2) Sangyo Eiseigaku Zasshi, 2000, Jan; 42(1):6-16, written by Koda S, Yasuda N., Sugihara Y., Ohara H., Udo H., Otani T., Hisashige A., Ogawa T., Toyama H., Kochi Medical School, Department of Public Health, Japan:
The above-mentioned study was a questionnaire survey which analyzed work-related health problems among truck drivers.
“134 local truck drivers, 199 long-distance truck drivers, and 71 clerical workers were analyzed. . .The prevalence rates of work factors affecting health problems of truck drivers were significantly higher than those of clerical workers in the items on irregular shift work, working environment, working posture, handling heavy materials, job stress due to overloading and working time, and limited time off.
The prevalence rates for subjective symptoms (ringing in the ears, neck pain, and low back pain) and present illnesses (hypertension, ulcers in the digestive tract, back injuries, whiplash injuries and hemorrhoids) among truck driers were significantly higher than those of clerical workers.”