This article describes the prevalence of Parkinson’s disease, the age of people affected by it, their life expectancy, and more.
Parkinson’s Disease Overview
Parkinson’s disease causes problems with movement, and it also causes non-motor symptoms, usually in the later stages of the disease.
The most common characteristics of Parkinson’s disease:
Tremors of the arms, hands, legs, voice, or fingers, often described as “pill rolling” Problems with balance Stiff movements Cogwheeling (non-fluid movements when limbs are moved passively, such as during a neurological examination) Masked face (lack of facial expression) Dizziness Mood lability (frequent mood changes) Low blood pressure Constipation Depression Dry and peeling skin on the face Thermoregulatory problems (body temperature irregularity) Restless legs syndrome
How Common Is Parkinson’s Disease?
The incidence of Parkinson’s disease has been increasing in most countries around the world. This is likely due to an increase in life expectancy in the general population, as the condition is seen more often with older age. In the United States, Parkinson’s disease affects almost six per 1,000 people age 45 and over.
Parkinson’s Disease by Ethnicity
Parkinson’s disease affects people of all races and geographic regions worldwide. The incidence is higher among White Americans than among Black and Asian Americans. It is higher among Hispanics than among White Americans.
It is not known whether the different incidence and prevalence rates among people of different ethnic backgrounds are due to environmental or genetic factors.
Parkinson’s Disease by Age and Gender
Parkinson’s disease generally affects people who are over 60 years old. Early-onset Parkinson’s disease is defined as beginning before age 50. The prevalence of Parkinson’s disease increases with increasing age, and it is estimated to affect 1 in 40 people who are 85 to 89 years old.
People who begin to have symptoms at an older age generally have more severe symptoms and also have more comorbid conditions (other health issues occurring at the same time), such as heart disease, lung disease, or diabetes.
Causes of Parkinson’s Disease and Risk Factors
Parkinson’s disease is caused by low dopamine activity in certain areas of the brain. It’s associated with degeneration of the substantia nigra, a small area of the brain that produces dopamine, a neurotransmitter that mediates motor movements and other body functions.
The underlying cause or trigger for these changes is not known, although some people have a family history of the condition.
Many potential risk factors have been examined as possible triggers, including exposure to chemicals, but no environmental or lifestyle factors have been confirmed as causing Parkinson’s disease.
What Are the Mortality Rates for Parkinson’s Disease?
Parkinson’s disease is not fatal, but it is often a handicap in advanced stages. Some people have a higher risk of death associated with Parkinson’s disease, but this is not the case for everyone. Many people who have the condition have a normal life expectancy.
People with advanced Parkinson’s disease may develop a type of cognitive impairment known as Parkinson’s dementia. Additionally, people who have Parkinson’s disease can develop other types of dementia, including Alzheimer’s disease. Cognitive impairment is a risk factor for death in Parkinson’s disease.
Screening and Early Detection
There is no specific test that can tell in advance whether someone will one day develop Parkinson’s disease. Most of the time, people who develop the condition did not have any early signs in the years before the disease started to cause symptoms. Many people with Parkinson’s disease had a physically active lifestyle before the disease started to have any effects.
Parkinson’s disease is diagnosed based on a physical examination, which includes a comprehensive neurological examination. Sometimes brain imaging or other tests are ordered to see whether another brain condition, such as a stroke, brain injury, or a tumor, could be causing the symptoms.
There is no definitive laboratory test or other test to confirm a diagnosis of Parkinson’s disease.
Summary
Parkinson’s disease is a progressive neurological condition that begins in late adulthood, generally after age 65. It has been increasing in prevalence worldwide. This is likely due to rising life expectancy rate throughout the world. The condition affects men more often than women and White Americans more often than Black Americans.
The biological cause of Parkinson’s disease is associated with a decrease in dopamine activity in the brain and degeneration of specific areas of the brain, but a specific trigger for these problems is unknown.
There’s no confirmatory test for Parkinson’s disease. The diagnosis is made based on certain movements and physical features that are detected with a medical physical examination.
Parkinson’s disease has a substantial effect on a person’s quality of life. It doesn’t always cause a decreased life expectancy, but it can cause a shortened life span for people who develop dementia.
ALS causes gradually worsening paralysis of the muscles, and it is fatal within a few years after diagnosis. People who have Parkinson’s disease are not paralyzed and usually survive for many years with the disease.
