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Bone mass--a marker of biologic age?
1Department of Orthopaedics, Malmö General Hospital, Lund University, Sweden.
Clinical Orthopaedics and Related Research
|February 1, 1993
Summary
Lower forearm bone mineral content (BMC) in men aged 50-69 predicted shorter life expectancy. This study highlights BMC as a potential indicator of longevity in specific male demographics.
Area of Science:
- Gerontology
- Osteoporosis Research
- Epidemiology
Background:
- Bone mineral content (BMC) is a key indicator of bone health.
- Previous research suggests potential links between bone density and mortality.
- Longitudinal studies are needed to confirm these associations.
Purpose of the Study:
- To investigate the relationship between forearm bone mineral content (BMC) and all-cause mortality.
- To determine if baseline BMC predicts survival in a cohort of adults.
- To identify specific age and sex groups where BMC may be a significant predictor.
Main Methods:
- A cohort of 1192 subjects had their forearm BMC measured between 1970-1976.
- Subjects were followed prospectively until 1985, with mortality data collected.
- Statistical analyses compared BMC levels between survivors and those who died, stratified by age and sex.
Main Results:
- A total of 489 deaths occurred during the follow-up period.
- Individuals who died generally had lower forearm BMC than survivors.
- This difference was statistically significant only in men aged 50-69 years.
Conclusions:
- Lower forearm bone mineral content is associated with increased mortality risk in middle-aged men.
- Deviation below normal BMC levels may indicate a shorter life expectancy in this demographic.
- Elevated BMC levels did not appear to be associated with increased longevity in the studied population.