[논문]조선업 근로자의 작업능력지수에 영향을 미치는 요소에 관한 연구

장성록

조선업 근로자의 작업능력지수에 영향을 미치는 요소에 관한 연구
A Study on Factors Influencing the Work Ability Index of Shipbuilding Industry Workers 원문보기

한국안전학회지 = Journal of the Korean Society of Safety, v.24 no.6, 2009년, pp.132 - 135

Abstract ▼ AI-Helper

The population over 65 years of age in Korea will be 10.3% of the entire population in 2008 indicating that Korea is already in an aging society. In addition, it is expected that Korea will be in an aged society in 2018 (population over 65 years of age : 14.3%) and that it will be in a post-aged society in 2026 (20.8%). Consequently, aged workers may also increase. It is well-known that the possibility to work longer and to live better is highly related to the work ability of individual. The objective of this study was to evaluate the work ability of each age group using the Work Ability Index(WAI) in the shipbuilding industry, and to assess the effects of social psychological stress, drinking characteristics, smoking characteristics, etc. on the WAI score. The results showed no significant difference on the effects of aging, drinking, and smoking characteristics. Interestingly, a statistical analysis on the effects of social psychological stress revealed a significant difference by stress levels. The difference of the average WAI score between the healthy group and the high risk group was about 10 points. Based on this result, it can be concluded that the stress level is an influential factor on WAI.

주제어

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문제 정의

The goal of this study was to assess work ability of each age group using WAI in the shipbuilding industry and identify influential factors on the WAI.
, self-awared health status, and changes in health over the last ten years⁵⁾. This survey was developed for the Safety and Health guidelines and manuals for preparing for an aging society. It was also developed to prevent industrial accidents in the field and its questions were classified into two survey parts, namely the one for enterprise and the other for individuals.

제안 방법

The objective of this study was to evaluate work ability of each age group using the WAI in the shipbuilding industry and to assess the effects of social psychological stress, drinking characteristics, smoking characteristics, etc. on the WAI scores.

대상 데이터

This study surveyed 153 persons working for a heavy industry in Korea. The age group of this popu-lation was 50.

이론/모형

The results revealed that the raw data does not follow normality assumptions. On this basis, Kruskal-Wallis one-way nonparametric tests were employed in this study. This method is based on the ranks of raw data, and therefore do not need to follow normality assumptions.
Statistical analyses were performed using MINITAB 13. Prior to statistical model analyses, diagnostic tests were performed on the data, including a test for homoscedasticity(Bartlett’s Test and Levene’s Test) and normality(Anderson-Darling Normality Test).
The work capacity was measured by the responses of the survey using the WAI methodology. Each of the seven items of the WAI has a score ranging from zero to 10, and the final summarized results were between seven and 49.

성능/효과

Consequently, the number of aged workers may also increase. The data of persons employed during the last ten years support this idea in that persons employed in their thirties, forties, fifties and sixties increased by 0.3%, 40%, 47% and 49%, respectively, even though persons in their twenties who were employed decreased by 9.3%¹⁾.
Interestingly, statistical analysis results on the effects on social psychological stress revealed a significant difference according to stress levels. The difference in the average WAI scores between the healthy group and the high risk group was about 10 points, and the difference in the average ranks was 92.6. On this basis, the effect of social psychological stress on WAI scores in the shipbuilding industry tells that stress level is an influential factor on work ability.
The results revealed no significant difference on the effect of aging even if the work ability of a group between 45 and 49 years of age was a little bit higher than other groups. This outcome is somewhat different from common sense that the work ability might be decreased as workers aged⁶⁾.

후속연구

Consequently, the current study revealed that work ability in the shipbuilding industry workers is related to stress level. Further investigation may be required to reveal which working environments cause higher stress in workers.

참고문헌 (7)

National Statistical Office, Annual Statistics, 2006
Ilmarinen J., Tuomi K. and Seitsamo J., New dimensions of work ability. International Congress Series, 1280, 2005
Ilmarinen J., Tuomi K., Klokars M., Aging and work ability index: a 10-year follow-up of municipal employees. In: the paths of productive aging. Proceedings of the 16th UOEH IIES International Symposium and the IEA Technical Group for Safety and Health Conference, Japan, 1995
Tuomi K., Ilmarinen J., Jahkola J., KataJarinne L. and Tulkki A, Work Ability Index. Finnish Institute of Occupational Health, 1998
Kim H., Lim H.K., Song J.C., Park J.H., Kim D.H. and Ko B.I., Safety & Health guidelines and manuals for preparing the aging society, Occupational Safety & Health Research Institute, 2007.(In Korean)
Liira J., Matikainen E., Leino-Arjas P., Malmivaara A., Mutanen P., Rytkonen H. and J. Juntunen , Work ability of middle-aged Finnish construction workers -

상세보기
Lee K.S., Chang S.R. and Lim H.K., Factors which affect elderly workers in reporting their workability, Proceedings of 16th World Congress on Ergonomics, Netherlands, 2006

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