The work ability of 961 construction workers, aged 40 yr and over, was foll
owed in two consecutive interviews in 1991 and 1995. A total of 736 (77%) c
onstruction workers participated in the follow-up interview. A work ability
index was calculated for each respondent at baseline and at follow-up. Inf
ormation on disability pensions was obtained from the registries of the LEL
Employment Pension Fund. The actual working status was followed in the pen
sion insurance register. Due to the recession during the early 1990s, nearl
y half of the respondents were unemployed for at least some period during t
he study. The work ability declined, especially in the age-group 50 yr and
older. The work ability index was highly predictive of disability pensions
during the follow-up.
Relevance to industry
Reduced work ability and early retirement due to disabilities is commonplac
e in physically demanding jobs. There are few methods to forecast and monit
or the risk of disability. This paper presents an easy to administer questi
onnaire, the work ability index, which is suitable for description and pred
iction of work ability in a group of ageing workers in physically demanding
tasks, such as construction work. (C) 2000 Elsevier Science B.V. All right
s reserved.