. Author manuscript; available in PMC: 2011 Sep 1.

Published in final edited form as: Arthroscopy. 2010 Aug 5;26(9 Suppl):S142–S147. doi: 10.1016/j.arthro.2010.02.029

Table I. Incidence rates of anterior acromioplasty for the five time periods by sex and age groups.

Incidence of anterior acromioplasty per 100,000 persons		1980-1985	1986-1990	1991-1995	1996-2000	2001-2005
Olmsted County Total^*		3.3	1.9	3.0	11.9	19.0
Sex	Male	5.8	2.8	3.1	15.2	24.5
	Female	1.0	1.1	2.9	8.8	13.8
Age	≤40	2.3	1.7	1.8	5.4	9.0
	41-64	7.3	3.4	6.1	25.8	39.4
	≥65	1.8	0.0	2.9	14.0	21.2
US White Population Total^**		3.8	2.0	3.3	12.8	20.0

Crude incidence per 100,000 person years for Olmsted County

^**

Incidence per 100,000 person year age- and sex-adjusted to 2000 US White Population