Coffee drinking: a minor risk factor for bone loss and fractures

Area of Science:

• Gerontology
• Nutritional Epidemiology
• Bone Metabolism

Background:

• Bone mass and fractures are significant health concerns in aging populations.
• Coffee consumption is a common dietary habit with potential health implications.
• Previous research has yielded conflicting results regarding coffee's impact on bone health.

Purpose of the Study:

• To investigate the association between coffee consumption and bone mass in elderly individuals.
• To identify independent risk factors for low bone mineral content and fractures in this cohort.
• To determine if coffee drinking contributes to bone loss and fracture risk.

Main Methods:

• Cohort study of 619 men and women aged 70 years.
• Bone mineral content assessed using dual photon absorptiometry of the calcaneum.
• Statistical analysis including bivariate relationships and stepwise logistic regression.

Main Results:

• High coffee consumption was associated with lower bone mass, poor dental health, lower socioeconomic status, and higher tobacco use.
• In non-smoking women, 3+ cups of coffee daily correlated with low bone mass.
• However, logistic regression identified tobacco smoking, BMI, height, physical activity, and dental state as significant predictors of low bone mineral content, not coffee.

Conclusions:

• Coffee drinking was not found to be an independent risk factor for reduced bone mass or fractures in this population.
• Tobacco smoking, body mass index, physical activity, and dental status are significant predictors of bone health in the elderly.
• Further research may be needed to clarify the complex interplay of lifestyle factors and bone metabolism.