Table 1

Effect of changes in labour force structure on rates of fatal unintentional occupational injury in the United States, 1980–96

1980 observed rate (_OR₈₀)*	1996 observed rate (_OR₉₆)*	1996 standardised rate (_ER₉₆)†	Crude		Employment adjusted
1980 observed rate (_OR₈₀)*	1996 observed rate (_OR₉₆)*	1996 standardised rate (_ER₉₆)†	(_OR₉₆/_OR₈₀)	95% CI	(_ER₉₆/_OR₈₀)	95% CI
*_OR₈₀, _OR₉₆, observed rates of fatal unintentional injury in 1980 and 1996, respectively.
†1996 rate of fatal unintentional injury standardised to the distribution of employment in 1980.
United States
5.48	2.99	3.41	0.55	0.52 to 0.57	0.62	0.60 to 0.65
Northeast
2.45	1.73	1.95	0.71	0.62 to 0.80	0.80	0.69 to 0.92
South
7.42	3.77	4.46	0.51	0.48 to 0.54	0.60	0.56 to 0.64
Midwest
5.08	2.99	3.39	0.59	0.54 to 0.64	0.67	0.61 to 0.73
West
6.20	3.00	3.36	0.48	0.44 to 0.53	0.54	0.49 to 0.60