rates of change

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Created by
Denuka Mahenthiran

Cards (12)

  • Crude Rates tell you how things change in every 1000 – usually births, deaths, marriages or unemployment
  • They need to be recorded to make plans for the future e.g. high birth rate means more schools will be required.
  • Crude Rate 

    how many times a particular event occurs per 1000 of the population in a given time
  • Crude Birth Rate
    Number of births per 1000 of the population
  • Crude Death Rate
    Number of deaths per 1000 of the population
  • π‘ͺ𝒓𝒖𝒅𝒆 𝑹𝒂𝒕𝒆 = π’π’–π’Žπ’ƒπ’†π’“ 𝒐𝒇 π’ƒπ’Šπ’“π’•π’‰π’”/𝒅𝒆𝒂𝒕𝒉𝒔 /𝒕𝒐𝒕𝒂𝒍 π’‘π’π’‘π’–π’π’‚π’•π’Šπ’π’ Γ— 𝟏𝟎𝟎0
  • Crude rates can be misleading when used for comparing against another area which has different distribution of ages
  • standard populations
    represent the whole population. It is a hypothetical population of 1000 people used to represent the whole population, taking into account the number of people with different age/gender/income.
  • 𝑺𝒕𝒂𝒏𝒅𝒂𝒓𝒅 π‘·π’οΏ½οΏ½π’–π’‚π’π’•π’Šπ’π’ = οΏ½οΏ½οΏ½οΏ½π’Žπ’ƒπ’†π’“ π’Šπ’ οΏ½οΏ½π’ˆπ’† ��𝒓𝒐𝒖𝒑 /𝒕𝒐𝒕𝒂𝒍 π’‘π’π’‘π’–π’π’‚π’•π’Šπ’π’ Γ— 𝟏𝟎𝟎0
  • Standardised Rate
    Allows you to compare the same age group in different populations by using the standard population – allows for more realistic comparisons
  • 𝑺𝒕𝒂𝒏𝒅𝒂𝒓𝒅��𝒔𝒆𝒅 𝑹𝒂��𝒆 = π‘ͺ𝒓𝒖𝒅𝒆 𝑹𝒂𝒕𝒆/��𝟎𝟎𝟎 Γ— 𝑺𝒕𝒂𝒏𝒅𝒂𝒓𝒅 π‘·π’π’‘π’–π’π’‚π’•π’Šπ’n
  • To find the standardised rate for the entire population, add up the rates for each group