VD is the common biomarker used to assess vitamin D status.

A positive test result (< cutoff) is associated with vitamin D deficiency.

A negative test result (> cutoff) is associated with vitamin D sufficiency.

• Prevalence of vitamin D deficiency in Canadians is 10%
• Sample population (n = 6,000)
• VD was low in 920 people of which 520 people had vitamin D deficiency
• VD was normal in 5080 people of which 5000 people did not have vitamin D deficiency

Based on the above information, calculate a value (to 2 decimal places) for each of the following measures. Clearly indicate the appropriate measure (e.g., TP, FN...) with its calculated value in your answer.

TP:

FN:

FP:

TN: