Common trajectories of physical functioning in the Doetinchem Cohort Study

Area of Science:

• Gerontology
• Public Health
• Epidemiology

Background:

• Understanding long-term physical functioning trajectories is crucial for public health interventions.
• Adults' physical health evolves over decades, influenced by various factors.
• Identifying patterns of physical decline can inform preventative strategies.

Purpose of the Study:

• To describe common physical functioning trajectories in adults over 15 years.
• To identify determinants associated with different physical functioning pathways.
• To analyze changes in physical health across different adult age groups.

Main Methods:

• Utilized data from 4,123 participants in the Doetinchem Cohort Study (ages 26-70).
• Employed group-based modeling to identify physical functioning trajectories using SF-36 data.
• Applied weighted multinomial logistic regression to determine differentiating characteristics.

Main Results:

• Identified five distinct physical functioning trajectories: stable not limited (27%), stable slightly limited (54%), slight deterioration (7%), moderate improvement (9%), and stable severe limitations (3%).
• Factors like female sex, older age, inactivity, obesity, chronic conditions, and poor mental/perceived health were linked to limited functioning.
• Younger age, physical activity, lower obesity, partnership, and good perceived health characterized moderate improvement trajectories.

Conclusions:

• Most adults exhibit stable, slightly limited physical functioning over time.
• Identified early risk indicators for physical functioning limitations.
• Findings can inform targeted interventions for maintaining physical health in aging populations.