Cohort profile: The Berlin Aging Study II (BASE-II)

Area of Science:

• Gerontology and Geriatric Medicine
• Population Health
• Multidisciplinary Aging Research

Background:

• Germany, like other industrialized nations, faces a significant population aging trend.
• Aging is characterized by a spectrum from robust health to multiple age-related diseases, impacting lifespan and quality of life.
• Understanding the determinants of healthy versus unhealthy aging is a critical public health challenge.

Purpose of the Study:

• To identify and characterize factors distinguishing healthy from unhealthy aging.
• To establish a comprehensive dataset on aging-related variables across diverse functional domains.
• To facilitate collaborative research through data sharing.

Main Methods:

• The Berlin Aging Study II (BASE-II) is a multidisciplinary, multi-institutional project.
• Phenotypic assessments cover geriatrics, internal medicine, immunology, genetics, psychology, sociology, and economics.
• Recruited 1600 older adults (60-80 years) and 600 younger adults (20-35 years) for baseline analysis; linked to German Socio-Economic Panel Study (SOEP) for sample selectivity.

Main Results:

• Baseline recruitment of the BASE-II cohort is complete.
• A large dataset of aging-related variables has been collected from a diverse cohort.
• Data linkage with SOEP provides a framework for understanding sample representativeness.

Conclusions:

• The BASE-II study has successfully established a comprehensive cohort for aging research in Germany.
• The collected data will enable in-depth analyses of factors influencing healthy and unhealthy aging trajectories.
• BASE-II is poised to advance scientific understanding and foster collaboration in the field of gerontology.