Hemoglobin Levels are Low in Sarcopenic and Osteosarcopenic Older Persons

Area of Science:

• Gerontology
• Hematology
• Bone and Muscle Health

Background:

• Anemia, osteoporosis, and sarcopenia are common in older adults.
• Osteosarcopenia, a condition combining osteoporosis and sarcopenia, is linked to adverse outcomes.
• The association between osteosarcopenia and anemia risk is not well understood.

Purpose of the Study:

• To compare hemoglobin levels in older adults with osteosarcopenia versus those with sarcopenia, osteopenia/osteoporosis, and controls.
• To assess the prevalence of anemia across these distinct geriatric conditions.

Main Methods:

• Cross-sectional study of 558 community-dwelling older adults (>65 years) in Western Sydney, Australia.
• Utilized European consensus definitions for sarcopenia (EWGOP, EWGSOP2) and WHO definitions for osteopenia/osteoporosis.
• Assessed associations between anemia and the defined conditions.

Main Results:

• Anemia prevalence was highest in sarcopenic (39%) and osteosarcopenic (34%) groups, compared to osteoporotic/penic (26%) and controls (24%).
• Osteosarcopenic individuals had significantly lower hemoglobin levels than controls and those with osteoporosis/penia.
• No significant difference in hemoglobin was found between sarcopenic and osteosarcopenic patients, or between osteoporotic/penic patients and controls.

Conclusions:

• Sarcopenia and osteosarcopenia are associated with a higher prevalence of anemia and lower hemoglobin levels in older adults.
• Previous associations between osteoporosis and anemia may be confounded by the inclusion of osteosarcopenic individuals in osteoporosis cohorts.