Table 3.

Degree of Injury Severity Determined by Lost and Restricted Work Days^a Among US Aluminum Smelter Employees, by Sex, 1996–2005

	Males	Females	P Value
Lost work days
No. of events	218	49
Median no. of lost days per event	35	57	0.009
25th–75th percentiles	14.0–64.5	28.0–97.0
Restricted work days
No. of events	1,638	245
Median no. of restricted days per event	13.0	18.5	0.009
25th–75th percentiles	5.0–34.0	6.0–46.0

^aThe number of lost work days was missing for 6 male and 2 female lost work day cases. The number of restricted work days was missing for 33 male and 3 female restricted work cases.