The aim of the study was to determine the number and nature of perceiv
ed harmful work conditions and perceived work-related symptoms among e
mployed Finns by sex and socioeconomic group. The associations between
perceived harmful work conditions and perceived symptoms were also in
vestigated. Knowledge of perceived work-related ill health can serve a
s a basis for health promotion at work. In a computer-assisted telepho
ne interview of 2744 salaried employees and wage-earners, the responde
nts were asked about perceived harmful work conditions as well as perc
eived health complaints, and their relatedness to work. At least one h
armful factor at work was reported by 94% of the respondents, and half
of them reported more than three such factors. The most commonly occu
rring harmful factors were increased work pace, mental demand, repetit
ive movements, and noise. Of the symptoms perceived as work-related, m
usculoskeletal symptoms were the most common. They were reported by 44
% of the respondents, followed by mental symptoms (26%), psychosomatic
symptoms (19%), and respiratory or sensory symptoms (15%). Both the r
eporting of perceived harmful work factors and perceived work-related
symptoms varied by socioeconomic group and sex. Perceived work-related
musculoskeletal symptoms were associated with perceived ergonomic har
mful work factors among both the men and the women, with physical or c
hemical work factors among the men, and with psychosocial or work orga
nizational factors among the women. Perceived work-related respiratory
symptoms were associated with perceived harmful physical or chemical
work factors among both the men and the women, and both groups also re
ported mental and psychosomatic symptoms in relation to harmful psycho
social or organizational work factors. Among the women psychosomatic s
ymptoms and harmful ergonomic work factors were also related. Perceive
d harmful factors at work and work-related symptoms are common among t
he work force. Even though the degree of work-related ill health was r
elated to socioeconomic group, the reporting of particular symptoms in
dicated the probability of a particular work factor bring considered h
armful independently of socioeconomic group, although there was some r
elationship to sex. The implications for occupational health services
are evident; employees' work-related symptoms can serve as an indicato
r of (preventable) perceived problems at work. (C) 1997 Elsevier Scien
ce Ltd.