Table 1. Observations, work-related injuries, and injury incidence rate, construction versus non-construction, 1988–2000.

	Construction					Non-construction
				95% CI					95% CI
Survey year	Observations	Injuries	Incidence ratea	Lower	Upper	Observations	Injuries	Incidence ratea	Lower	Upper
1988	652	85	14.2%	10.8%	17.6%	8,341	754	9.3%	8.5%	10.0%
1989	706	65	9.2%	6.6%	11.8%	8,344	547	6.6%	6.0%	7.3%
1990	681	67	9.7%	7.0%	12.4%	8,215	548	6.4%	5.7%	7.0%
1992b	536	57	10.9%	7.8%	13.9%	7,100	505	7.5%	6.8%	8.3%
1993	587	57	9.7%	6.9%	12.4%	6,970	390	5.8%	5.1%	6.4%
1994	482	48	10.9%	7.7%	14.2%	6,194	411	6.9%	6.2%	7.7%
1996b	555	60	11.8%	8.7%	14.9%	6,989	544	7.8%	7.0%	8.5%
1998b	536	57	12.3%	9.0%	15.5%	6,917	498	7.2%	6.5%	7.9%
2000b	552	49	9.0%	6.3%	11.8%	6,681	457	6.7%	6.0%	7.4%
Total	5,287	545	10.8%	9.8%	11.8%	65,751	4,654	7.1%	6.9%	7.4%

Note:

^aInjury incidence rate = number of injuries per 100 observations.

^bInjury rates represent 2-year recall period. Percentages are weighted. No injury data were collected in 1991.