Motor vehicle manufacturing, with its varied tasks, challenging work e
nvironment, and diverse worker populations, presents many hazards to e
mployees. This study examined routinely collected surveillance data fr
om a major motor vehicle manufacturer to identify injury types, high-r
isk workers, causes of injury, and factors associated with work loss.
Injury and personnel data were used to calculate injury rates. Injury
data were fi om the routinely collected medical and safety surveillanc
e system on occupational injuries. The number of persons working in th
e plants was estimated using year-end personnel reports. Key word sear
ches supplementing the analyses provided insight into the specific cir
cumstances of injury. The most common injuries were sprains/strains (3
9% of the total), lacerations (22%), and contusions (15%). Forty-nine
percent of the injuries resulted in one or more lost or restricted wor
kdays; 25% resulted in 7 or more lost or restricted workdays. The inju
ries most likely to result in work loss were amputations, hernias and
fractures. Sprains/strains accounted for 65% of all lost workdays. Inj
ury rates ranged from 13.8 per 100 person-years at stamping plants to
28.7 at parts depots. Even within similar types of plants, injury rate
s varied widely, with a twofold difference among the individual assemb
ly plants in overall injury rates. Injury surveillance systems with de
scriptive data on injury events shed light on the circumstances under
which certain types of injuries occur and can provide the basis for pr
eventive interventions. Sources of variation and potential biases are
discussed, providing guidance for those interested in designing and us
ing surveillance systems for occupational injuries. (C) 1998 Wiley-Lis
s, Inc.