01047
Stratum for Study Randomization
1999-04-14
Components: <identifier (ST)> ^ <text (ST)> ^ <name of coding system (ST)> ^ <alternate identifier (ST)> ^ <alternate text (ST)> ^ <name of alternate coding system (ST)>
Definition: Many studies have stratified randomization schemas. The strata codes must be developed for each clinical trial. This field is important for statistical analysis of the study results. The second and third repetitions will correspond to the second and third repetitions of CSR-11-study randomization date/time and CSR-12-randomized study arm, if they exist.
Length≤200
6 components
| 1 | O | - | identifier | |
| 2 | O | - | text | |
| 3 | O | - | name of coding system | |
| 4 | O | - | alternate identifier | |
| 5 | O | - | alternate text | |
| 6 | O | - | name of alternate coding system |