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  2. Old age - Wikipedia

    en.wikipedia.org/wiki/Old_age

    Old age is the range of ages for people nearing and surpassing life expectancy.People who are of old age are also referred to as: old people, elderly, elders, senior citizens, seniors or older adults. [1]

  3. Disability-adjusted life year - Wikipedia

    en.wikipedia.org/wiki/Disability-adjusted_life_year

    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.

  4. List of countries by life expectancy - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_life...

    The data is differentiated by sex, presenting life expectancies for males, females, and a combined average. In addition to sovereign nations, the list encompasses several non-sovereign entities and territories.

  5. Elderly care - Wikipedia

    en.wikipedia.org/wiki/Elderly_care

    An old man at a nursing home in Norway. Elderly care, or simply eldercare (also known in parts of the English-speaking world as aged care), serves the needs of old adults.It encompasses assisted living, adult daycare, long-term care, nursing homes (often called residential care), hospice care, and home care.

  6. Data - Wikipedia

    en.wikipedia.org/wiki/Data

    The term data-driven is a neologism applied to an activity which is primarily compelled by data over all other factors. [citation needed] ...

  7. Data fusion - Wikipedia

    en.wikipedia.org/wiki/Data_fusion

    Data fusion is the process of integrating multiple data sources to produce more consistent, accurate, and useful information than that provided by any individual data source. Data fusion processes are often categorized as low, intermediate, or high, depending on the processing stage at which fusion takes place. [ 1 ]

  8. Secondary data - Wikipedia

    en.wikipedia.org/wiki/Secondary_data

    The data may have been used in published texts and statistics elsewhere, and the data could already be promoted in the media or bring in useful personal contacts. Secondary data generally have a pre-established degree of validity and reliability which need not be re-examined by the researcher who is re-using such data. Secondary data is key in ...