Add the ordinal number of the observation period associated that a given date is in. Result is not computed, only query is added.

Usage

addObservationPeriodIdQuery(
  x,
  indexDate = "cohort_start_date",
  nameObservationPeriodId = "observation_period_id"
)

Arguments

x: Table with individuals in the cdm.
indexDate: Variable in x that contains the date to compute the observation flag.
nameObservationPeriodId: Name of the new colum.

Value

Table with the current observation period id added.

Examples

# \donttest{
cdm <- mockPatientProfiles()

cdm$cohort1 |>
  addObservationPeriodIdQuery()
#> # Source:   SQL [?? x 5]
#> # Database: DuckDB v1.2.2 [unknown@Linux 6.11.0-1015-azure:R 4.5.0/:memory:]
#>    cohort_definition_id subject_id cohort_start_date cohort_end_date
#>                   <int>      <int> <date>            <date>         
#>  1                    3          3 1955-12-31        1971-06-11     
#>  2                    2          5 1949-05-25        1980-12-03     
#>  3                    2          9 1987-01-29        2008-08-15     
#>  4                    1          2 1978-03-21        1994-12-15     
#>  5                    2          1 1967-03-29        1970-04-08     
#>  6                    2          8 1920-05-10        1928-07-19     
#>  7                    3         10 1935-01-04        1956-01-14     
#>  8                    3          6 1951-05-17        1954-01-19     
#>  9                    1          4 1909-06-30        1912-05-13     
#> 10                    2          7 1951-01-19        1964-07-01     
#> # ℹ 1 more variable: observation_period_id <int>

mockDisconnect(cdm = cdm)
# }