In a cohort of 5,000 individuals, ages 40-50 years of age, blood samples were collected at baseline and stored for future analysis. After five years of study, Vitamin D levels were determined among those who developed Multiple Sclerosis (MS) and those who did not develop MS. The following results were observed. Serum Level of Vitamin D Incident Cases of MS Healthy Entire Cohort Individuals Above 40 ng per ml 2 1998 2000 20-40 ng per ml 4 1996 2000 Below 20 ng per ml 4 996 1000 If Vitamin D assays cost $20 per specimen, what is the total cost of these assays in the cohort study

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In a cohort of 5,000 individuals, ages 40-50 years of age, blood samples were collected at baseline
and stored for future analysis. After five years of study, Vitamin D levels were determined among
those who developed Multiple Sclerosis (MS) and those who did not develop MS. The following
results were observed.
Serum Level of Vitamin D
Healthy
Incident Cases of MS
Entire Cohort
Individuals
Above 40 ng per ml
1998
2000
20-40 ng per ml
4
1996
2000
Below 20 ng per ml
4
996
1000
If Vitamin D assays cost $20 per specimen, what is the total cost of these assays in the cohort study
O $ 100.000
O $ 50,000
O $ 10,000
O $ 20,000
2.
Transcribed Image Text:In a cohort of 5,000 individuals, ages 40-50 years of age, blood samples were collected at baseline and stored for future analysis. After five years of study, Vitamin D levels were determined among those who developed Multiple Sclerosis (MS) and those who did not develop MS. The following results were observed. Serum Level of Vitamin D Healthy Incident Cases of MS Entire Cohort Individuals Above 40 ng per ml 1998 2000 20-40 ng per ml 4 1996 2000 Below 20 ng per ml 4 996 1000 If Vitamin D assays cost $20 per specimen, what is the total cost of these assays in the cohort study O $ 100.000 O $ 50,000 O $ 10,000 O $ 20,000 2.
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