About Data

Adolescent fertility rate is the number of births per 1,000 women ages 15–19.

Adult literacy rate is the percentage of people ages 15 and above who can, with understanding, read and write a short, simple statement about their everyday life. (Data source: UNESCO)

Average annual population growth rate is the exponential change in total population for the period indicated. (Data source: the World Bank’s staff estimates)

Births attended by skilled health staff is the percentage of deliveries attended by personnel trained to give the necessary supervision, care, and advice to women during pregnancy, labor, and the postpartum period, to conduct deliveries on their own, and to care for newborns.(Data source: WHO amd UNICEF)

Child immunization rate is the percentage of children under one year of age receiving vaccination coverage for four diseases—measles and diphtheria, pertussis (whooping cough), and tetanus (DPT). A child is considered adequately immunized against measles after receiving one dose of vaccine, and against DPT after receiving three doses. (Data source: WHO and UNICEF)

Child malnutrition – weight for age is the proportion of children under five whose weight for age is more than two standard deviations below the median for the international reference population ages 0-59 months. (Data source: WHO)

Contraceptive prevalence rate is the percentage of women who are practicing, or whose sexual partners are practicing, any form of contraception. It is usually measured for married women ages 15–49 only. (Data source: WHO and UNICEF)

Dependency ratio is the ratio of dependents—people younger than 15 and older than 64—to the working-age population—those ages 15–64. (Data source: the World Bank’s staff estimates)

DOTS detection rate is the percentage of estimated new infectious tuberculosis cases detected under the directly observed treatment, short-course (DOTS) case detection and treatment strategy. (Data source: WHO)

Expected years of schooling is the average number of years of formal schooling that children are expected to receive, including university education and years spent in repetition. They reflect the underlying age-specific enrollment ratios for primary, secondary, and tertiary education. (Data source: UNESCO)

GNI per capita is gross national income divided by midyear population. GNI per capita in U.S. dollars is converted using the World Bank Atlas method. Gross national income (GNI) is the sum of value added by all resident producers plus any product taxes (less subsidies) not included in the valuation of output plus net receipts of primary income (compensation of employees and property income) from abroad. Data are in current U.S. dollars converted using the World Bank Atlas method. (Data source: the World Bank’s staff estimates)

HIV prevalence among adult is the percentage of people ages 15-49 who are infected with HIV. (Data source: UNAIDS)

HIV prevalence among young people 15 to 24 years (female) is the percentage of female population ages 15-24 who are infected with HIV. (Data source: UNAIDS)

Hospital beds include inpatient beds available in public, private, general, and specialized hospitals and rehabilitation centers. In most cases beds for both acute and chronic care are included. (Data sources: WHO, OECD and TransMONEE, supplemented by country data).

Infant mortality rate is the number of infants dying before reaching one year of age, per 1,000 live births in a given year. (Data source: United Nations Statistics Division and UNICEF).

Life expectancy at birth is the number of years a newborn infant would live if prevailing patterns of mortality at the time of its birth were to stay the same throughout its life. (Data source: the World Bank’s staff estimates).

Maternal mortality ratio is the number of women who die from pregnancy-related causes during pregnancy and childbirth, per 100,000 live births. (Data source: Carla AbouZahr, and Tessa Wardlaw’s “Maternal Mortality in 2000: Estimates developed by WHO, UNICEF, and UNFPA” )

Physicians are graduates of any faculty or school of medicine who are working in the country in any medical field (practice, teaching, research). (Data sources: WHO, OECD and TransMONEE, supplemented by country data)

Private health expenditure includes direct (out-of-pocket) spending by households, private insurance, spending by nonprofit institutions serving households (other than social insurance), and direct service payments by private corporations. (Data source: WHO, household surveys, and World Bank poverty assessments and sector studies. The data on private health expenditure for member countries of (OECD) are from the OECD)

Public health expenditure consists of recurrent and capital spending from government (central and local) budgets, external borrowings and grants (including donations from international agencies and nongovernmental organizations), and social (or compulsory) health insurance funds. (Data source: WHO, household surveys, and World Bank poverty assessments and sector studies)

Total fertility rate is the number of children that would be born to a woman if she were to live to the end of her childbearing years and bear children in accordance with current age-specific fertility rates. (Data source: Demographic and Health Surveys, World Bank estimates and United Nations Population Division).

Total health expenditure is the sum of public and private health expenditure. It covers the provision of health services (preventive and curative), family planning activities, nutrition activities, and emergency aid designated for health but does not include provision of water and sanitation. (Data source: WHO, household surveys, and World Bank poverty assessments and sector studies)

Total population of an economy includes all residents regardless of legal status or citizenship— except for refugees not permanently settled in the country of asylum, who are generally considered part of the population of their country of origin. (Data source: the World Bank’s staff estimates)

Tuberculosis death rate is the number of deaths from tuberculosis per 100,000 population. (Data source: WHO)

Tuberculosis incidence is the estimated number of new tuberculosis cases (pulmonary, smear positive, extrapulmonary). (Data source: WHO)

Tuberculosis treatment success rate is the percentage of new, registered smear-positive (infectious) cases that were cured or in which a full course of treatment was completed. (Data source: WHO)

Under-five mortality rate is the probability that a newborn baby will die before reaching age five, if subject to current age-specific mortality rates. The probability is expressed as a rate per 1,000. (Data source: UNICEF, WHO and WB).