Group 1: Cost Resulting from Absence from Work
The development of a WRMSD leads to a loss of productive workdays because of worker absenteeism. Statistics from the Alberta construction industry between 2006 and 2010 show an average of 29 days of lost-time claims [Fig. 3(b)]. Overexertion and bodily reaction injuries have each resulted in average claims of US$7,000 during the same period [Fig. 3(a)]. Lost time from work leads to schedule extensions, project delays, and loss of experienced and skilled workers.