Site: Prostate

Inclusion Criteria:

• All Male I-Arm Subjects
• BQ Returned
• No Rare Cancers
• Has Biochemical Consent
• Non-Hispanic Black Subjects Only
• No Prior History of Cancer
• First Cancers Only
• Has Any Serum
• Has .15 ml Pre-DX Most Distal Serum
• Matched at a 2-1 Ratio
• Eliminate Dropped Subject
• Finalized Population (Selected)

Matching Factors:

• Age at Randomization (+/- 5 years)
• Study Year of Draw
• Draw Date +/- 210 Days
• Days in Study

Match Ratio: 2 to 1

Match Technique: Individual Matching Only Non-Cases as Controls

Additional Matching Comments: Standard 2-1 Match

Analytes:

• 25-Hydroxyvitamin D
• 25-Hydroxyvitamin D2
• 25-Hydroxyvitamin D3
• Vitamin D Binding Protein

Number of Cases: 226

Number of Controls: 452

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