Annals of Occupational and Environmental Medicine

Ki Jung Yoon

2 Articles

The Effects of Job Stress on the Autonomic Nerve Activity of Workers in Manufacturing Industry: Ki Jung Yoon, Mi Na Ha, Jai Young Kim, Sang Yun Lee, Hyoung June Im, Ae Sun Shin, Seung Sik Hwang, Jeong Soo Kim, Dae Hee Kang, Soo Hun Cho; Korean Journal of Occupational and Environmental Medicine 2002;14(3):280-287. Published online September 30, 2002; DOI: https://doi.org/10.35371/kjoem.2002.14.3.280

Abstract PDF: OBJECTIVE: A cross-sectional study was conducted to evaluate the relationships between autonomic nerve activity (i.e., heart rate variability and urinary catecholamines) and job stress.
METHODS
The study was conducted on 134 workers from a company producing consumer goods (i.e., diaper, paper towel) located in Cheonan, Korea. Job stress was assessed by Karasek's Job Content Questionnaire (JCQ). Autonomic function was assessed by heart rate variability (HRV) and urinary catecholamines (epinephrine, norepinephrine, and dopamine). Urine samplings, and measurings of HRV, were repeated three times for each shift. Information on demographic characteristics, previous job histories, past medical history, smoking and drinking were also collected.
RESULTS
No statistically significant differences were observed in any HRV and urinary catecholamines among the four groups, which were categorized by the Job Strain Model. When data were stratified by work duration, low field HRV was borderline significantly higher in the high strain group in individuals with a shorter work duration (<48.5 months, N=28, p-value of 0.92 by analysis of variance).
CONCLUSIONS
Neither HRV nor urinary catecholamines are significantly associated with job stress, as assessed by the Karasek's JCQ. However, HRV seems to be a potential physiological indicator of job stress only in the workers with a shorter work duration.

33 View
0 Download

The Association of Workplace Cumulative Noise Exposure and Blood Pressure: Sang Yun Lee, Jai Young Kim, Hyoung June Im, Ki Jung Yoon, Hong Ryul Choi, Sang Baek Koh, Dae Hee Kang, Soo Hun Cho; Korean Journal of Occupational and Environmental Medicine 2001;13(2):200-208. Published online June 30, 2001; DOI: https://doi.org/10.35371/kjoem.2001.13.2.200

OBJECTIVES
The association of workplace cumulative noise exposure and blood pressure was investigated in this study using cross-sectional design.
METHODS
The study population comprised 852 manufacturing male workers of whom occupational health examination data, questionnaire and personnel records were available. Workplace ambient noise monitoring data was used for calculating individual cumulative noise exposure level. Mean of each systolic and diastolic blood pressure of occupational health examination data was used for individual systolic and diastolic blood pressure level. Possible confounding variables including family history of hypertension, smoking habit, alcohol drinking habit were collected by questionnaire. On the basis of job location and duration of work at the location, a cumulative time-weighted average noise level was calculated for each workers. According to this cumulative noise exposure level, each study subject was categorized as low noise exposure group, moderate noise exposure group, high noise exposure group, very high noise exposure group. Among noise exposure groups, mean of systolic and diastolic blood pressure was compared after adjusting possible confounding variables such as age, body mass index, serum cholesterol level, family history of hypertension, smoking history, alcohol drinking habit.
RESULTS
After adjusting possible confounding variables, noise exposure group was significant explanatory variables for both systolic and diastolic blood pressure, and mean of both systolic and diastolic blood pressure of very high exposure group was higher than that of low exposure group.
CONCLUSIONS
These findings suggested that the high cumulative noise exposure might elevate the blood pressure.

Citations

Citations to this article as recorded by

Impact of Indoor Green in Rest Space on Fatigue Recovery Among Manufacturing Workers
ChoHye Youn, LeeBom Chung, Minji Kang, Juyoung Lee
Journal of Environmental Science International.2024; 33(3): 217. CrossRef
The relationship between occupational noise exposure and hypertension using nearest age-matching method in South Korea male workers
Min Gi Kim, Yeon-Soon Ahn, Zhongmin Jin
Cogent Engineering.2021;[Epub] CrossRef
Cohort study for the effect of chronic noise exposure on blood pressure among male workers in Busan, Korea
Ji Ho Lee, Weechang Kang, Seung Rim Yaang, Nari Choy, Choong Ryeol Lee
American Journal of Industrial Medicine.2009; 52(6): 509. CrossRef

38 View
0 Download
3 Crossref

Author index