Which measure of disease frequency (prevalence, cumulative incidence, incidence density or estimated incidence rate) is most suitable in this example? Provide reasoning to justify your answer.

Calculate the overall crude measures of disease frequency (use the measure nominated in the previous question) of type II diabetics for both states and identify which state had higher crude rate of type II diabetes.

Calculate the age-specific rates (using the same measure of disease frequency as in Q1-(b)) in the two states. How does the risk of developing diabetes vary by age in each of the two states? (Calculate the appropriate measure to quantify the variation). Based on your results, is age a risk factor for type II diabetes in both states?

Use Australia's population as the standard population to compute the direct standardised occurrences (age adjusted rates) of type II diabetes in Queensland and in Northern Territory. Compare the results of crude and standardised rates between the two states and interpret your findings.