CCOI

CENTER FOR CLINICAL OBSERVATIONAL INVESTIGATIONS

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AgingResearchBiobank

MrOS: Osteoporotic Fractures in Men Study

Basic Statistics

Study Date Span: 2002-Present

Participant Count: 5,664

Sex

All participants in the study are men

Race

Race	Participant Count	Participant Percentage
African American	244	4.07%
Asian	191	3.19%
Hispanic	126	2.1%
Other	71	1.18%
White	5,362	89.46%

Age at Enrollment

Age Group	Participant Count	Participant Percentage
64-69	1,769	29.51%
70-74	1,708	28.50%
75-79	1,445	24.11%
80+	1,072	17.88%

Visit Type

Visit	Participant Count	Participant Percentage
V1 - Baseline	5,994	100.00%
VD - Dental Visit 1	1,353	22.57%
VI - Interim Questionnaire	5,742	95.80%
VS - Sleep Visit	3,135	52.30%
V2 - Visit 2	5,229	87.24%
V3 - Visit 3	4,681	78.09%
VI2 - Interim Questionnaire 2	4,100	68.40%
VS2 - Sleep Visit 2	1,055	17.60%
V4 - Visit 4	2,424	40.44%
V4R - Visit 4 Repeat	278	4.64%
VI3 - Interim Questionnaire 3	2,083	34.75%

Last updated Jul 16, 2025