getExposureStatus: Get the exposure status for cases (and controls).

In OHDSI/CaseCrossover: Case-Crossover

Description

Get the exposure status for cases (and controls).

Usage

getExposureStatus(
  subjects,
  caseCrossoverData,
  exposureId,
  firstExposureOnly = FALSE,
  riskWindowStart = -30,
  riskWindowEnd = 0,
  controlWindowOffsets = c(-60)
)

Arguments

subjects	A data frame as generated using the selectSubjectsToInclude function.
caseCrossoverData	An object of type caseCrossoverData as generated using the getDbCaseCrossoverData function.
exposureId	The identifier of the exposure.
firstExposureOnly	Should only the first exposure per subject be included?
riskWindowStart	The start of the risk window (in days) relative to the index date. This number should be non-positive.
riskWindowEnd	The end of the risk window (in days) relative to the index date. This number should be non-positive.
controlWindowOffsets	Offsets in days of the control windows relative to the case window.

Details

This function determines the exposure status for a give, exposure ID in various windows relative to the index date.

Value

A data frame with these columns:

personId

The person ID

indexDate

The index date

isCase

Is the person a case or a control?

stratumId

The ID linking cases and controls in a matched set

isCaseWindow

Is this a case window (as opposed to a control window)?

exposed

Was the person exposed during the window?

OHDSI/CaseCrossover documentation built on Nov. 21, 2020, 7:03 a.m.