3.8 Selection Probabilities File Parameters
The Selection Probabilities file is optional. This file must be specified if requesting adjustment for selection bias when conducting propensity score analyses for exposed and unexposed/comparator pregnant cohorts. This file defines the selection probability for each comparison and subgroup.
Parameter | Field Name | Description |
---|---|---|
Group Name for Analysis | ANALYSISGRP | Name to differentiate exposure of interest/reference pairs. |
Note 1: ANALYSISGRP must correspond to values of ANALYSISGRP included in the L2 Comparison File. | ||
Format: SAS character $40; no special characters (e.g., commas, periods, hyphens, spaces, etc.) allowed, and underscores must be used to mark spaces. | ||
Example: drug_a_and_drug_b | ||
RunID Corresponding to ANALYSISGRP | RUNID | RunID assigned to the run that corresponds to the specified ANALYSISGRP. |
Format: SAS character $5 | ||
Example: r01 | ||
Subgroup Identifier | SUBGROUP | Identifer for subgroup level of analysis. Only populated for subgroup analyses and will be blank for overall analysis. |
Format: SAS character $11 | ||
Example: Sex | ||
Subgroup Value | SUBGROUPCAT | Subgroup value. Only populated for subgroup analyses and will be blank for overall analysis. |
Format: SAS character $11 | ||
Example: M | ||
Selection Probability among Exposed | S11 | Probability of case selection among the exposed. Odds ratio and 95% CI will be adjusted for selection probability. |
Note 1: S11 is required to be specified. | ||
Format: Numeric | ||
Example: 0.20 | ||
Selection Probability among Unexposed | S01 | Probability of case selection among unexposed. Odds ratio and 95% CI will be adjusted for selection probability. |
Note 1: S01 is required to be specified. | ||
Format: Numeric | ||
Example: 0.20 | ||
Selection Probability among Exposed | S10 | Probability of non-case selection among exposed. Odds ratio and 95% CI will be adjusted for selection probability. |
Note 1: S10 is required to be specified. | ||
Format: Numeric | ||
Example: 0.20 | ||
Selection Probability among Unexposed | S00 | Probability of non-case selection among unexposed. Odds ratio and 95% CI will be adjusted for selection probability. |
Note 1: S00 is required to be specified. | ||
Format: Numeric | ||
Example: 0.20 |