SENIORLAB: a prospective observational study investigating laboratory parameters and their reference intervals in the...

Area of Science:

• Gerontology
• Clinical Chemistry
• Laboratory Medicine

Background:

• Accurate laboratory reference intervals are essential for clinical decision-making in elderly patients.
• Existing reference intervals often do not adequately represent the health status of older adults.
• The SENIORLAB study addresses this gap by focusing on the elderly population.

Purpose of the Study:

• To determine age-related reference intervals for laboratory parameters in the elderly.
• To investigate associations between laboratory parameters, health outcomes, and disease prevalence in seniors.
• To establish robust and representative reference intervals for older adults.

Main Methods:

• Observational, prospective cohort study of 1467 healthy Swiss residents aged 60+.
• Collection of anthropometric data, medical history, and fasting blood samples under optimal preanalytical conditions.
• Measurement of over 110 laboratory parameters, biobanking, and long-term follow-up for quality of life, morbidity, and mortality.

Main Results:

• The study established a comprehensive dataset of laboratory parameters in a large cohort of elderly individuals.
• A novel methodology was employed, utilizing survival and long-term well-being as indicators of health in seniors.
• This approach aims to provide more representative reference intervals than those derived from highly selected, "perfectly" healthy individuals.

Conclusions:

• Specific reference intervals for the elderly are critically needed to improve clinical decision-making.
• Defining health in seniors is challenging, as individuals without medical conditions or medication are rare.
• The SENIORLAB study's longitudinal approach with health indicators offers a more robust method for establishing representative reference intervals for the aging population.