Week 3: Current and Emerging NCDs Flashcards
What is the goal of public health?
- To prevent premature death (death before late adulthood)
- Promote health across the lifespan
- shift the burden of illness, disability, and death from younger people to older adults
What is the epidemiological transition?
- the shift from infectious to NCDs being the primary cause of death in a population
- often follows the demographic transition where a couple becomes more wealthy, there are less babies being born, and child survival rates are improving
In the pre-transition period with the epidemiological transition, a large burden of disease falls on the ____ whereas after the transition nearly all deaths occur in____
young; older adults
during the period of transition ____ experience the burden from infectious diseases while ___ experience the burden from NCDs
children; adults
What were the top 3 risk factors for death in 2019?
- smoking
- high blood pressure
- high blood sugar
what are diseases of affluence?
a way of contrasting NCDs with infectious diseases and under-nutrition that are considered to be diseases of poverty. This is false because NCDs are the primary cause of death globally regardless of income level
True or false: NCDs are only a burden in adult populations in high income countries?
False
What are chronic respiratory diseases?
Diseases of the airway, bronchioles, and lungs
What are examples of chronic respiratory diseases? (hint there are 7 of them)
- asthma
- COPD
- lungs diseases associated with occupational exposures
- sleep apnea
- pulmonary hypertension
- bronchial taluses
- interstitial lung diseases
Is cancer included as a chronic respiratory disease?
NO
What is asthma?
a chronic but reversible inflammation of the airways that causes wheezing, especially when exhaling, coughing, chest tightness, and shortness of breath due to thickening of the airway wall and bronchial spasms that narrow the diameter of the bronchi and bronchioles
How are asthma symptoms usually managed?
With inhaled corticosteroids
How can one reduce symptom severity with asthma?
- avoid cold air
- avoid environmental triggers such as air pollution
How many people worldwide have asthma?
More than 300 million
Which age group has the highest prevalence of asthma?
18-34
What is COPD?
a chronic, progressive disease that limits airflow and causes shortness of breath and productive coughing
What are the two most common presentations of COPD?
- emphysema
- chronic bronchitis
what is bronchitis?
a consistent productive cough caused by progressive thickening and narrowing of the airways that occurs as inflammation and excess mucus blocks breathing passages
what is emphysema?
the alveoli lose elasticity and become destroyed. irreversible process that reduces surface area available for oxygen intake and the release of CO2
is damage to airways and lungs full reversible with therapies for COPD patients?
NO
How many adults worldwide have COPD/
170 million
What is the biggest risk factor for COPD?
Tobacco smoking
What age group is most affected by COPD?
65+
what is pneumoconiosis?
a restrictive lung disease caused by exposure to various types of occupational hazards?
Obstructive diseases like asthma and COPD make it difficult for a person to do what?
exhale all the air in the lungs
what are examples of obstructive lung diseases?
- asthma
- copd
what is an example of a restrictive lung disease?
pneumoconiosis
What do restrictive lung diseases make it difficult to do?
to fully fill the lungs with air when they exhale
restrictive and obstructive lung diseases both cause what?
shortness of breath with exertion
what is the most common cause of pneumoconiosis?
silicosis caused by inhalation of silica dust by minors
What are some other forms of pneumonocosis?
black lung disease and asbestosis
is pneumoconiosis a major cause of global mortality?
no because it can be prevented with PPE use
What does smoking do?
- damages cells
- alters blood chemistry
- stresses the cardiovascular system
- destroys cilia that clear mucus
- interferes with respiration
true or false? People who smoke or are exposed to second hand smoke sustain damage to every body system?
true
Smoking increases the risk of what in adults and what in children?
in adults: CVD, stroke, lung cancer
in children: Respiratory illnesses
Has the death rate in Canada from smoking increased or decreased since the 1990s?
decreased
Has the percentage of people who smoke globally increased or decreased?
decreased
what helped reduced global tobacco smoking?
2005 FCTC which was a framework convention on tobacco control with the goal of reducing global prevalence of tobacco use
How many smokers are there worldwide?
900 million including 1 in 3 men
Which sex is smoking more common among?
Males
number of daily smokers is ____ while percentage of adults who smoke is _____
increasing; decreasing
describe the dose-response relationship between tobacco and health problems
heavier consumption of tobacco is associated with steadily worsening health outcomes
smoking is least common in what age group?
12-17
among both sexes, number of daily smokers has ___ between 2015-2019
decreased
Describe Type 1 diabetes
- occurs when the body does not produce enough insulin
- childhood onset
- people diagnosed are rarely overweight
- previously called juvenile or insulin dependent diabetes
What is insulin?
a hormone produced by the pancreas that helps the body maintain a consistent level of glucose or sugars in the blood stream so the cells have a consistent supply of energy
What is type 2 diabetes?
occurs when the body develops insulin resistance and stops responding appropriately to insulin
- adult onset
- not insulin dependent
- gradual
- preventable
- people are usually overweight
What are gestational diabetes?
elevated blood sugar first diagnosed during pregnancy.
-typically resolves after delivery
people who have elevated glucose levels who are not at the threshold for type 2 diabetes may be classified as having what?
pre diabetes such as impaired glucose tolerance or impaired fasting glucose
what are the symptoms of gestational diabetes?
excessive thirst, frequent urination, unexplained weight loss, fatigue
Between 1980 and 2015, global diabetes prevalence ___ from __ to ___
doubled; 4.7% to 8.5%
the prevalence of diabetes is only rising in high income countries? true or false
False. It is rising in all income levels because obesity and other risk factors are becoming more prevalent
___ of adults with type 2 diabetes do not know they have it which can lead to preventable complications
half
What made diabetes go up?
liquid sugar, obesity and subsequent diabetes rates
Obesity prevalence is expected to be what by 2040?
10.4%
number of adults worldwide with diabetes went from ___ in 1982 to ___ in 2015
110 million; 420 million
what is the goal of diabetes management?
stop blood sugars levels from becoming too high (hyperglycaemia) or too low (hypoglycaemia)
Failure to maintain blood sugar levels can cause complications including
-blindness, heart diseases, kidney failure, nerve damage, and foot ulcers leading to amputation
People with type 1 diabetes require insulin injections to maintain safe blood sugar levels to avoid what?
ketoacidosis that can lead to seizures, coma, and death
how is type 2 diabetes managed?
through lifestyle changes such as. weight loss, diet, and oral medications
What age group has the highest diabetes prevalence?
65+
What is the role of the kidneys?
filter toxins from the blood, maintain fluid and electrolyte levels, help control blood pressure, produce red blood cells, and support bone health
when does kidney failure happen?
when kidneys are not functioning well enough for health
what are the two tests that can indicate decreased renal function?
- glomerular filtration rate: a measure of blood filtration efficiency determined by blood creatine levels
- albuminuria: presence of protein albumin in the urine is a sign of kidney damage