Related Experiment Video
Updated: Jan 31, 2026

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
Published on: July 20, 2017
Identifying Factors Associated With Loneliness in Older United States Veterans: An Ecological Systems Approach
JoAnn Jabbari1,2,3, Rachael Beard2, Amy McQueen3
1Barnes-Jewish College, Goldfarb School of Nursing.
Purpose:
The current study examined whether multi-level ecological factors, including sociodemographic characteristics, military-related characteristics, social support, and community-level social vulnerability, were associated with loneliness among older U.S. Veterans.
Method:
We conducted a cross-sectional analysis of baseline data from a large clinical trial involving 237 Veterans aged ≥65 years hospitalized at a Midwestern Veterans Health Administration medical center. Loneliness was measured using the Three-Item Loneliness Scale. Multiple logistic regression models were used to assess associations between loneliness and multi-level ecological factors.
Results:
Greater emotional/informational social support was significantly associated with lower odds of loneliness. Veterans residing in areas with moderate or high social vulnerability had higher odds of loneliness. No sociodemographic or military characteristics were significantly associated with loneliness after adjusting for all other factors.
Conclusion:
Findings highlight the importance of addressing individual and community-level social factors to reduce loneliness in older Veterans, supporting whole health approaches within gerontological care settings.
Related Concept Videos
Ecological Disturbance
Ecological Niches
Ecological Succession
Measurement: Standard Units
Measurement: Derived Units
Transcription Factors

