Question 36 · LEK · Demographic indicators
In one calendar year mortality due to malignant diseases was compared between the population of Town A (mortality: 420 / 100 000) and the population of Town B (mortality: 458 / 100 000). Indicate the correct interpretation of the obtained data:
- A. two populations (A and B) differ statistically significantly in terms of mortality because the difference is greater than 5%.
- B. incidence of malignant diseases is larger in Town B than in Town A.
- C. case fatality in malignant diseases is larger in Town B than in Town A providing that the observed difference in mortality is statistically significant.
- D. reliable assessment of the difference in between-town mortality due to malignant diseases is not possible without age standardization.
- E. duration of observation (one calendar year) is too short to implement population-based comparisons of two mortalities due to malignant diseases.
Hint
Before comparing crude mortality between two populations, ask which population characteristic could distort the comparison.
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