Related Experiment Video
Updated: Aug 14, 2026

06:55
Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
Broken heart: a statistical study of increased mortality among widowers
British Medical Journal
|March 22, 1969
Summary
Widowers aged 55+ experienced a 40% higher mortality rate in the first six months after losing their wives. This increased risk, particularly from heart disease, gradually returned to normal levels over time.
Area of Science:
- Gerontology
- Epidemiology
- Public Health
Background:
- Bereavement is a significant life event associated with increased mortality risk.
- Previous studies have indicated a potential link between spousal loss and health outcomes.
Purpose of the Study:
- To investigate the mortality patterns of elderly widowers following the death of their wives.
- To identify specific causes of increased mortality in the early stages of bereavement.
Main Methods:
- A longitudinal study followed 4,486 widowers aged 55 and older for nine years.
- Mortality rates were compared to expected rates for married men of similar age.
- Causes of death were analyzed, with a focus on the first six months post-bereavement.
Main Results:
- A 40% excess mortality was observed in the first six months post-bereavement compared to married men.
- The highest increase in mortality was linked to coronary thrombosis and other heart diseases.
- Approximately 22.5% of deaths in the first six months were from the same diagnostic group as the wife's death.
Conclusions:
- Elderly widowers face a significantly elevated mortality risk in the initial period after spousal loss, particularly from cardiovascular causes.
- The mortality risk appears to normalize over time, returning to levels comparable to married men.
- The findings suggest a potential shared environmental or psychological impact of spousal death on the surviving partner's health.
Related Concept Videos
Wilcoxon Signed-Ranks Test for Median of Single Population
The Wilcoxon signed-rank test for the median of a single population is a nonparametric test used to evaluate whether the median of a population differs from a specified value. Unlike parametric tests, it does not require data to follow a normal distribution, making it suitable for non-normal or small samples. The test begins by calculating the difference (d) between each observation and the hypothesized median. The absolute values of these differences are ranked in ascending order, with ties...
Longitudinal Studies
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
Introduction To Survival Analysis
Survival analysis is a statistical method used to study time-to-event data, where the "event" might represent outcomes like death, disease relapse, system failure, or recovery. A unique feature of survival data is censoring, which occurs when the event of interest has not been observed for some individuals during the study period. This requires specialized techniques to handle incomplete data effectively.
The primary goal of survival analysis is to estimate survival time—the time until a...
The primary goal of survival analysis is to estimate survival time—the time until a...
Assumptions of Survival Analysis
Survival models analyze the time until one or more events occur, such as death in biological organisms or failure in mechanical systems. These models are widely used across fields like medicine, biology, engineering, and public health to study time-to-event phenomena. To ensure accurate results, survival analysis relies on key assumptions and careful study design.
Heart Failure II: Pathophysiology
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
Psychoneuroimmunology: Cardiovascular Disease
Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
A key area of focus in PNI is the relationship between stress and coronary...