patients_in_window: Select patients alive and registered between certain dates

Description Usage Arguments Details

View source: R/cprd_patients.R

Description

This function selects patients from the patient table of a CPRD database who are alive and registered within a supplied window

Usage

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patients_in_window(db, startdate, enddate, qs = TRUE,
  registration_buffer = 0, patient_tablename = "Patient")

Arguments

db

a database connection

startdate

character for the start of the window. format %Y-%m-%d

enddate

character for the end of the window. format %Y-%m-%d

qs

logical should only patients deemed to be of acceptable quality standard be selected? Most downloaded cohorts will be up to standard by default

registration_buffer

numeric how many days must patients be registered for prior to the startdate to be included? Setting a posive value can reduce information bias

patient_tablename

The name of the patient table. default is Patient

Details

criteria are that crd is before start of window, tod is after end of window deathdate is after end of window


rOpenHealth/rEHR documentation built on March 19, 2018, 7:58 a.m.