Ageing; work ability; health surveillance; occupational health; perceived health
Abstract :
[en] Background
Public authorities in European countries are paying increasing attention to the promotion of work ability throughout working life and the best method to monitor work ability in populations of workers is becoming a significant question. The present study aims to compare the assessment of work ability based on the use of the Work Ability Index (WAI), a 7-item questionnaire, with another one based on the use of WAI’s first item, which consists in the worker’s self-assessment of his/her current work ability level as opposed to his/her lifetime best, this single question being termed “Work Ability score” (WAS).
Methods
Using a database created by an occupational health service, the study intends to answer the following questions: could the assessment of work ability be based on a single-item measure and which are the variables significantly associated with self-reported work ability among those systematically recorded by the occupational physician during health examinations? A logistic regression model was used in order to estimate the probability of observing “poor” or “moderate” WAI levels depending on age, gender, body mass index, smoking status, position held, firm size and diseases reported by the worker in a population of workers aged 40 to 65 and examined between January 2006 and June 2010 (n=12389).
Results
The convergent validity between WAS and WAI was statistically significant (rs=0.63). In the multivariable model, age (p<0.001), reported diseases (OR=1.13, 95%CI [1.11-1.15]) and holding a position mostly characterized by physical activity (OR=1.67, 95%CI [1.49-1.87]) increased the probability of reporting moderate or poor work ability. A work position characterized by the predominance of mental activity (OR=0.71, 95%CI [0.61-0.84]) had a favourable impact on work ability. These relations were observed regardless of the work ability measurement tool used.
Conclusion
The convergent validity and the similarity in results between WAI and WAS observed in a large population of employed workers should thus foster the use of WAS for systematic screening of work ability. Ageing, overweight, decline in health status, holding a mostly physical job and working in a large-sized firm increase the risk of presenting moderate or poor work ability.
The work ability index (WAI). Ilmarinen J, Occup Med 2007 57 160
The effects of work-related and individual factors on the Work Ability Index: a systematic review. van den Berg TI, Elders LA, de Zwart BC, Burdorf A, Occup Environ Med 2009 66 211 220 19017690
Development of a decision model to identify workers at risk of long-term disability in the construction industry. Burdorf A, Frings-Dresen MH, van Duivenbooden C, Elders LA, Scand J Work Environ Health 2005 31 Suppl 2 31 36 16363444
Work ability index of young employees and their sickness absence during the following year. Kujala V, Tammelin T, Remes J, Vammavaara E, Ek E, Laitinen J, Scand J Work Environ Health 2006 Feb 32 75 84 10.5271/sjweh.979
Determinants of work ability and its predictive value for disability. Alavinia SM, de Boer AGEM, van Duivenbooden JC, Frings-Dresen MH, Burdorf A, Occup Med 2009 59 32 37 10.1093/occmed/kqn148
Summary of the Finnish research project (1981-1992) to promote the health and work ability of aging workers. Tuomi K, Ilmarinen J, Seitsamo J, Huuhtanen P, Martikainen R, Nygård CH, Scand J Work Environ Health 1997 23 suppl 1 66 71 9475431
Factors associated with premature departure from working life among ageing food industry employees. Salonen P, Arola H, Nygård CH, Huhtala H, Koivisto AM, Occup Med 2003 53 65 68 10.1093/occmed/kqg012
Low-perceived work ability, ageing and intention to leave nursing: a comparison among 10 European countries. Camerino D, Conway PM, Van der Heijden BI, Estryn-Behar M, Consonni D, Gould D, Hasselhorn HM, NEXT-Study Group, J Adv Nurs 2006 56 542 552 10.1111/j.1365-2648.2006.04046.x 17078829
Dimensions of work ability. Results from the Health 2000 Survey. Helsinki (Finland): Finnish Centre for Pensions; 2008. p. 25-34. Gould R, Ilmarinen J, Järvisalo J, Occup Environ Health 2008 81 495 501 10.1007/s00420-007-0222-z
Work ability of Dutch employees with rheumatoid arthritis. de Croon EM, Sluiter JK, Nijssen TF, Kammeijer M, Dijkmans BA, Lankhorst GJ, Frings-Dresen MH, Scand J Rheumatol 2005 34 277 283 10.1080/03009740510018615 16195160
Quality of life and illness perception in working and sick-listed chronic RSI patients. Sluiter JK, Frings-Dresen MH, Int Arch Occup Environ Health 2008 81 495 501 10.1007/s00420-007-0222-z 17638005
Factors associated with self-estimated work ability and musculoskeletal symptoms among male and female workers in cooled food-processing facilities. Sormunen E, Remes J, Hassi J, Pienimäki T, Rintamäki H, Ind Health 2009 47 3 271 282 Erratum in: Ind Health. 2009;47:453 10.2486/indhealth.47.271 19531913
The work ability index and single-item question: associations with sick leave, symptoms, and health-a prospective study of women on long-term sick leave. Ahlstrom L, Grimby-Ekman A, Hagberg M, Dellve L, Scand J Work Environ Health 2010 36 404 412 10.5271/sjweh.2917 20372766
Macro-organizational factors, the incidence of work disability, and work ability among the total workforce of home care workers in Sweden. Dellve L, Karlberg C, Allebeck P, Herloff B, Hagberg M, Scand J Public Health 2006 34 17 25 10.1080/14034940510032194 16449040
Work ability in midlife as a predictor of mortality and disability in later life: a 28-year prospective follow-up study. von Bonsdorff MB, Seitsamo J, Ilmarinen J, Nygård CH, von Bonsdorff ME, Rantanen T, CMAJ. 2011 183 235 E242 21282315
Psychometric properties of work ability index in the light of comparative survey study. Radkiewich P, Widerszal-Bazyl M, Int Congr Ser 2005 1280 304 309
Just one question: if one question works, why ask several? Bowling A, J Epidemiol Community Health 2005 59 342 345 10.1136/jech.2004.021204 15831678
Prognostic value of self-reported work ability and performance-based lifting tests for sustainable return to work among construction workers. Kuijer PP, Gouttebarge V, Wind H, van Duivenbooden C, Sluiter JK, Frings-Dresen MH, Scand J Work Environ Health 2012 Nov 1 38 6 600 603 10.5271/sjweh.3302
Cohen J, Statistical power analysis for the behavioral sciences New York: L. Erlbaum Associates publishers 1988
Obesity: preventing and managing the global epidemic. Report of a WHO consultation. WHO, World Health Organ Tech Rep Ser 2000 894 1 253
Psychometric properties of the Fagerström Test for Nicotine Dependence. Meneses-Gaya IC, Zuardi AW, Loureiro SR, Crippa JA, J Bras Pneumol 2009 35 73 82 10.1590/S1806-37132009000100011 19219334
Tuomi K, Ilmarinen J, Jahkola A, Katajarinne L, Tulkki A, Work Ability Index Helsinki: Finnish Institute of Occupational Health 1994 24 ISBN 951-802-029-9
Reliability and validity of instruments measuring job satisfaction - a systematic review. van Saane N, Sluiter JK, Verbeek JH, Frings-Dresen MH, Occup Med (Lond) 2003 53 3 191 200 Review 10.1093/occmed/kqg038
Overall job satisfaction: how good are single-item measures? Wanous JP, Reichers AE, Hudy MJ, J Appl Psychology 1997 82 247 252
Using a single-item approach to measure facet job satisfaction. Nagy MS, J Occup Organizational Psychology 2002 75 77 86 10.1348/096317902167658
Work load and individual factors affecting work ability among aging municipal employees. Tuomi K, Eskelinen L, Toikkanen J, Jarvinen E, Ilmarinen J, Klockars M, Scand J Work Environ Health 1991 17 Suppl 1 128 134 1792526
Changes in the work ability of active employees over an 11-year period. Ilmarinen J, Tuomi K, Klockars M, Scand J Work Environ Health 1997 23 suppl 1 49 57 9247995
Age, absenteeism and physical fitness in relation to work ability. Goedhard WJ, Rijpstra TS, Puttiger PH, Stud Health Technol Inform 1998 48 254 257 10186522
Perceived work ability of home care workers in relation to individual and work-related factors in different age groups. Pohjonen T, Occup Med 2001 51 209 217 10.1093/occmed/51.3.209
Organizational practices, work demands and the well-being of employees: a follow-up study in the metal industry and retail trade. Tuomi K, Vanhala S, Nykyri E, Occup Med 2004 54 115 121 10.1093/occmed/kqh005
Work ability of workers in different age groups in a public health institution in Brazil. Monteiro MS, Ilmarinen J, Corraa Filho HR, Int J Occup Saf Ergon 2006 12 417 427 17156617
Age-related physical fitness and the predictive values of fitness tests for work ability in home care work. Pohjonen T, J Occup Environ Med 2001 43 723 730 10.1097/00043764-200108000-00011 11515256
Promotion of work ability, the quality of work and retirement. Tuomi K, Huuhtanen P, Nykyri E, Occup Med 2001 51 318 324 10.1093/occmed/51.5.318
Work ability of health care shift workers: What matters? Fischer FM, Borges FN, Rotenberg L, Latorre MDOR, Soares NS, Rosa PL, Teixeira LR, Nagai R, Steluti J, Landsbergis P, Chronobiol Int 2006 23 1165 1179 10.1080/ 07420520601065083 17190703
European Foundation for the Improvement of Living and Working Conditions, 4th European Working Conditions Survey Luxembourg: Office for Official Publications of the European Communities 2007 142 http://www.eurofound.europa. eu/ewco/
Work ability within labour market status groups, industrial groups and age groups. Nielsen J, Past, Present and Future of Work Ability Helsinki: Finnish Institute of Occupational Health, People and Work, Research Reports 65, Ilmarinen J, Lehtinen S, 2004 41 47
Perkiö-Mäkelä M, Hirvonen M, Elo A-L, Ervasti J, Huuhtanen P, Work and Health Survey 2006 Helsinki: Table report. Finnish Institute of Occupational Health 2006
Majery N, Duveau A, Lempereur I, Knauf-Hübel D, Results of an Intensive Rehabilitation Program for workers with chronic low back pain Berlin: Deutsche Hauptversammlung zur Europäischen Woche 2007
Majery N, Delfosse V, Development and implementation of an evidence based guideline for aging workers in Luxembourg Cancun, Mexico: 40th International Congress of Occupational Health 2012