case_control: case_control

In vcastro/Ri2b2casecontrol:

Description

The main case control function to run a case control analysis from i2b2-generated data files

Usage

case_control(p, d, dict, exposure_cds, visit_cd = "V", outcome_cd = "O",
  riskWindow_daysPreIndex_start = 365, riskWindow_daysPreIndex_end = 1,
  controls_num = 3)

Arguments

p	A data frame of patients demographics
d	A data frame of patient data in a tall file
dict	A data frame of descriptions for each concept_cd in the data_tbl
exposure_cds	A string vector of exposures codes to test
visit_cd	The code used for visits (default is V)
outcome_cd	The code used for the outcome in the data_tbl (default is O)
riskWindow_daysPreIndex_start	The number of days prior to the index date to start the risk window (default is 365)
riskWindow_daysPreIndex_end	The number of days prior to the index date to end the risk window (default is 1)
controls_num	Number of controls to match to each case

Value

A list with the elements

result	A data frame with results including a row for each defined exposure
match_results	A list returned from the matching function
cohort_file	The full patient data frame with case control status after matching

Examples

#Not run

vcastro/Ri2b2casecontrol documentation built on May 29, 2019, 11:57 a.m.