Human life expectancy is a statistical measure of the estimate of the average remaining years of life at a given age. The most commonly used measure is life expectancy at birth. This can be defined in two ways. Cohort LEB is the mean length of life of a birth cohort and can be computed only for cohorts born so long ago that all their members have died. Period LEB is the mean length of life of a hypothetical cohort assumed to be exposed, from birth through death, to the mortality rates observed at a given year. National LEB figures reported by national agencies and international organizations for human populations are estimates of period LEB.
Preventive healthcare, or prophylaxis, is the application of healthcare measures to prevent diseases. Disease and disability are affected by environmental factors, genetic predisposition, disease agents, and lifestyle choices, and are dynamic processes that begin before individuals realize they are affected. Disease prevention relies on anticipatory actions that can be categorized as primal, primary, secondary, and tertiary prevention.
Disability-adjusted life years (DALYs) are a measure of overall disease burden, expressed as the number of years lost due to ill-health, disability, or early death. It was developed in the 1990s as a way of comparing the overall health and life expectancy of different countries.
The Global Burden of Disease Study (GBD) is a comprehensive regional and global research program of disease burden that assesses mortality and disability from major diseases, injuries, and risk factors. GBD is a collaboration of over 3600 researchers from 145 countries. Under principal investigator Christopher J.L. Murray, GBD is based in the Institute for Health Metrics and Evaluation (IHME) at the University of Washington and funded by the Bill and Melinda Gates Foundation.
Disease burden is the impact of a health problem as measured by financial cost, mortality, morbidity, or other indicators. It is often quantified in terms of quality-adjusted life years (QALYs) or disability-adjusted life years (DALYs). Both of these metrics quantify the number of years lost due to disability (YLDs), sometimes also known as years lost due to disease or years lived with disability/disease. One DALY can be thought of as one year of healthy life lost, and the overall disease burden can be thought of as a measure of the gap between current health status and the ideal health status. According to an article published in The Lancet in June 2015, low back pain and major depressive disorder were among the top ten causes of YLDs and were the cause of more health loss than diabetes, chronic obstructive pulmonary disease, and asthma combined. The study based on data from 188 countries, considered to be the largest and most detailed analysis to quantify levels, patterns, and trends in ill health and disability, concluded that "the proportion of disability-adjusted life years due to YLDs increased globally from 21.1% in 1990 to 31.2% in 2013." The environmental burden of disease is defined as the number of DALYs that can be attributed to environmental factors. Similarly, the work-related burden of disease is defined as the number of deaths and DALYs that can be attributed to occupational risk factors to human health. These measures allow for comparison of disease burdens, and have also been used to forecast the possible impacts of health interventions. By 2014, DALYs per head were "40% higher in low-income and middle-income regions."
Health in Sweden has generally improved over time, with life expectancy increasing, and is at a high level in international comparison. Life expectancy in 2021 was 84.8 years for women and 81.2 years for men and it increased 2.3 years on average from 2006 to 2019. However, the health situation varies between groups in Swedish society and equitable health has proven to be a challenge, with level of education, employment status and country of birth being factors that strongly influence health in the Swedish population. The two leading causes of death in Sweden are cardiovascular disease and cancer.
Australia is a high income country, and this is reflected in the good status of health of the population overall. In 2011, Australia ranked 2nd on the United Nations Development Programme's Human Development Index, indicating the level of development of a country. Despite the overall good status of health, the disparities occurring in the Australian healthcare system are a problem. The poor and those living in remote areas as well as indigenous people are, in general, less healthy than others in the population, and programs have been implemented to decrease this gap. These include increased outreach to the indigenous communities and government subsidies to provide services for people in remote or rural areas.
The Tajikistan health system is influenced by the former Soviet legacy. It is ranked as the poorest country within the WHO European region, including the lowest total health expenditure per capita. Tajikistan is ranked 129th as Human Development Index of 188 countries, with an Index of 0.627 in 2016. In 2016, the SDG Index value was 56. In Tajikistan health indicators such as infant and maternal mortality rates are among the highest of the former Soviet republics. In the post-Soviet era, life expectancy has decreased because of poor nutrition, polluted water supplies, and increased incidence of cholera, malaria, tuberculosis, and typhoid. Because the health care system has deteriorated badly and receives insufficient funding and because sanitation and water supply systems are in declining condition, Tajikistan has a high risk of epidemic disease.
The major causes of deaths in Finland are cardiovascular diseases, malignant tumors, dementia and Alzheimer's disease, respiratory diseases, alcohol related diseases and accidental poisoning by alcohol. In 2010, the leading causes of death among men aged 15 to 64 were alcohol related deaths, ischaemic heart disease, accident, suicides, lung cancer and cerebrovascular diseases. Among women the leading causes were breast cancer, alcohol related deaths, accidents, suicides, ischaemic heart disease and lung cancer.
According to the World Bank income level classification, Portugal is considered to be a high income country. Its population was of 10,283,822 people, by 1 July 2019. WHO estimates that 21.7% of the population is 65 or more years of age (2018), a proportion that is higher than the estimates for the WHO European Region.
In 2006, life expectancy for males in Cyprus was 79 and for females 82 years. Infant mortality in 2002 was 5 per 1,000 live births, comparing favourably to most developed nations.
Health in Russia deteriorated rapidly following the dissolution of the Soviet Union, and particularly for men, as a result of social and economic changes.
Brunei's healthcare system is managed by the Brunei Ministry of Health and funded by the General Treasury. It consists of around 15 health centers, ten clinics and 22 maternal facilities, considered to be of reasonable standard. There are also two private hospitals. Cardiovascular disease, cancer, and diabetes are the leading cause of death in the country, with life expectancy around 75 years, a vast improvement from 1961. Brunei's human development index (HCI) improved from 0.81 in 2002 to 0.83 in 2021, expanding at an average annual rate of 0.14%. According to the UN's Human Development Report 2020, the HCI for girls in the country is greater than for boys, though aren't enough statistics in Brunei to break down HCI by socioeconomic classes. Brunei is the second country in Southeast Asia after Singapore to be rated 47th out of 189 nations on the UN HDI 2019 and has maintained its position in the Very High Human Development category. Being a culturally taboo subject, the rate of suicide has not been investigated.
Health indicators are quantifiable characteristics of a population which researchers use as supporting evidence for describing the health of a population. Typically, researchers will use a survey methodology to gather information about a population sample, use statistics in an attempt to generalize the information collected to the entire population, and then use the statistical analysis to make a statement about the health of the population. Health indicators are often used by governments to guide health care policy or to make goals for improving population health.
Preventable years of life lost (PrYLL) is an epidemiological measure. It is an estimate of the average years a person would have lived if s/he had not died prematurely due to a preventable cause of death.
Health in Norway, with its early history of poverty and infectious diseases along with famines and epidemics, was poor for most of the population at least into the 1800s. The country eventually changed from a peasant society to an industrial one and established a public health system in 1860. Due to the high life expectancy at birth, the low under five mortality rate and the fertility rate in Norway, it is fair to say that the overall health status in the country is generally good.
Montenegro is a country with an area of 13,812 square kilometres and a population of 620,029, according to the 2011 census. The country is bordered by Croatia, the Adriatic Sea, Bosnia, Herzegovina, Serbia, Kosovo and Albania. The most common health issues faced are non-communicable diseases accounting for 95% of all deaths. This is followed by 4% of mortality due to injury, and 1% due to communicable, maternal, perinatal and nutritional conditions. Other health areas of interest are alcohol consumption, which is the most prevalent disease of addiction within Montenegro and smoking. Montenegro has one of the highest tobacco usage rates across Europe. Life expectancy for men is 74 years, and life expectancy for women is 79.
