Study design

Reference interval study requirements and dataset layout.

Requirements

  • A quantitative variable of the reference values.
  • 1 or more factor variables.

Dataset layout

Use a column for the variable (Reference value), and optionally additional columns for each partition factor (Sex); each row has the values of the variables for a case (Subject).

Subject (optional) Sex (optional) Reference value
1 Male 121
2 Male 118
3 Female 124
4 Female 120
5 Male 116
6 Male
7 Female 100
8 Male 115
9 Female 102
10 Female 98
11 Male 118