Related Experiment Video
Updated: Feb 2, 2026
06:49
A Quick Phenotypic Neurological Scoring System for Evaluating Disease Progression in the SOD1-G93A Mouse Model of ALS
Published on: October 6, 2015
20.9K
Lifetime trajectory simulation of chronic disease progression and comorbidity development
Zhecheng Zhu1, Bee Hoon Heng1, Kiok Liang Teow1
1Health Services & Outcomes Research, National Healthcare Group, Singapore.
Journal of Biomedical Informatics
|November 11, 2018
Summary
Comorbidity development in elderly patients is simulated across a lifetime. Early chronic disease onset significantly reduces life years, highlighting the need for proactive prevention and management strategies.
Area of Science:
- Gerontology
- Public Health
- Computational Biology
Background:
- Comorbidity is prevalent in elderly populations, posing significant burdens on individuals and healthcare systems.
- Understanding disease progression from single conditions to comorbidity is crucial for effective health management.
Purpose of the Study:
- To simulate lifetime disease progression trajectories from single chronic conditions to comorbidity.
- To gain insights into the development and patterns of comorbidity over a human lifespan.
Main Methods:
- Constructed a disease progression network using seven-year retrospective data from approximately 700,000 Singapore residents.
- Applied microsimulation to model aging and disease progression for a synthetic newborn cohort throughout their entire lifetime.
Main Results:
- Identified 40 unique disease trajectories, with the top 10 covering 60% of the simulated cohort.
- Observed that individuals typically become at risk in their late 30s, develop chronic conditions in their 50s or 60s, and experience complications in their 70s.
- Found a correlation between earlier onset of chronic conditions and greater life-year loss.
Conclusions:
- Lifetime disease progression trajectories illustrate the pathway from health to chronic conditions and complications.
- This simulation-based approach enhances understanding of chronic disease progression and comorbidity development.
- Findings support the value of enhanced chronic disease prevention and management strategies.
Related Concept Videos
01:26Orthogonal Trajectories
61
Orthogonal trajectories describe the geometric relationship between two families of curves that intersect each other at right angles. One illustrative case involves a family of parabolas that open sideways along the x-axis. These curves share a common shape but differ by a scaling parameter, resulting in a set of curves that all pass through the origin and widen at different rates.Determining Orthogonal TrajectoriesTo identify the orthogonal trajectories for these parabolas, the first step...
61
01:25Chronic Kidney Disease I: Introduction
728
Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
728
01:24Chronic Obstructive Pulmonary Disease
2.5K
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
2.5K
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
4.5K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
4.5K
01:20Chronic Obstructive Pulmonary Disease-I: Introduction
3.7K
Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
3.7K
01:29Chronic Obstructive Pulmonary Disease-V: Management
3.2K
Managing Chronic Obstructive Pulmonary Disease (COPD) involves a multifaceted approach to reduce symptoms, prevent exacerbations, improve overall health status, and slow disease progression. Key strategies include lifestyle modifications, pharmacotherapy, supportive therapies, and, in some cases, surgery. Here is an overview of the primary COPD management strategies:
Smoking Cessation
Smoking Cessation
3.2K