CCOI

CENTER FOR CLINICAL OBSERVATIONAL INVESTIGATIONS

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AgingResearchBiobank

SOF: Study of Osteoporotic Fractures

Basic Statistics

Study Date Span: 1986 - 2009

Participant Count: 10,366

Sex

All participants in the study are women

Race

Race Participant Count Participant Percentage
Other 33 0.34%
White 9,671 99.66%

Age at Enrollment

Age Group Participant Count Participant Percentage
65-69 4,113 42.38%
70-74 3,044 31.37%
75-79 1,543 15.90%
80-84 773 7.97%
85-89 200 2.06%
90+ 31 0.32%

Visit Timeframe

Visit Participant Count Participant Percentage
V1 - Baseline 9,704 100.00%
V2 - Year 2 9,339 96.24%
V3 - Year 3.5 9,195 94.75%
V4 - Year 5 8,412 86.69%
V5 - Year 8 7,847 80.86%
V6 - Year 10 7,008 72.22%
V7 - Year 12 524 5.40%
V8 - Year 16 4,261 43.91%
V9 - Year 20 2,121 21.86%

Last updated Sep 17, 2025