摘要：Objectives This study examines male manual construction workers in Denmark and the degree to which their employment in either micro, small or medium-sized enterprises bears an elevated risk of hospital treatment for injury compared to employment in large enterprises. Methods A nationwide register-based follow-up study was conducted among all male subjects registered as manual workers in the construction industry in Denmark from January, 2000 to December, 2006 when aged 21 -59 years (n=183 738). The subjects were followed yearly through the national hospital patient register for injury in accordance to ICD-10 classification numbers S00-T98: ―Injury, poisoning and certain other consequences of external causes‖ and linked to data about enterprise size. Enterprise sizes we re related to a Danish context and defined as micro when 0-4 employees; small when 5-9 employees; medium when 10-19 employees; and large when at least 20 employees. The term .enterprise' was defined as the local workplace unit, meaning each worker's workplace location from where orders are received. Poisson regression was used to assess the effect of enterprise size on injury rates for five year age groups. Results For all male manual construction workers in Denmark, the injury rates increased with enterprise size. With large enterprises as reference the age adjusted rate ratios were 0.90 (95% CI: 0.88 – 0.92) for micro, 0.94 (95% CI: 0.92 – 0.97) for small, and 0.96 (95% CI: 0.94 – 0.99) for medium-sized enterprises. Conclusions This study suggests that, in a Danish context, injury prevention efforts on the political front and in research should target construction workers in large rather than small enterprises.
