Fracture Incidence in Olmsted County, Minnesota: Comparison of Urban with Rural Rates and Changes in Urban Rates Over time (original) (raw)

Abstract:

Using the data resources of the Rochester Epidemiology Project, we carried out a descriptive study of fracture incidence among the residents of Olmsted County, Minnesota. During the 3-year period 1989–91, 2901 County residents ≥ 35 years of age experienced 3665 separate fractures. The age- and sex-adjusted (to 1990 United States whites) incidence of any fracture was 2205 per 100 000 person-years (95% CI, 2123 to 2286) and that of all fractures was 2797 per 100 000 (95% CI, 2705 to 2889). Age-adjusted fracture rates were 40% greater among women. Incidence rates increased with age in both sexes. One-third of the fractures involved the hip, spine or distal forearm – the skeletal sites traditionally associated with osteoporosis. The age- and sex-adjusted incidence of fractures due to moderate trauma (2205 per 100 000 person-years; 95% CI, 2106 to 2303) was twice that of fractures due to more severe trauma (1164 per 100 000; 95% CI, 1106 to 1223) and 12 times that of pathological fractures (178 per 100 000; 95% CI, 133 to 222). Overall fracture rates were 15% greater among residents of the central city of Rochester compared with the rural portion of Olmsted County. The incidence of limb fractures among Rochester residents was 14% higher than comparable rates documented for this community 20 years earlier in 1969–71, due mainly to a substantial increase in the incidence of leg fractures.

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Authors and Affiliations

  1. Department of Health Sciences Research, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA, , , , , , US
    L. J. Melton III, C. S. Crowson & W. M. O’Fallon

Authors

  1. L. J. Melton III
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  2. C. S. Crowson
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  3. W. M. O’Fallon
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Received: 24 February 1998 / Accepted: 17 April 1998

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Melton III, L., Crowson, C. & O’Fallon, W. Fracture Incidence in Olmsted County, Minnesota: Comparison of Urban with Rural Rates and Changes in Urban Rates Over time .Osteoporos Int 9, 29–37 (1999). https://doi.org/10.1007/s001980050113

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