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Drop rows with metformin purchases that are potentially for the treatment of polycystic ovary syndrome

Source: R/drop.R
drop_pcos.Rd

Takes the output from keep_gld_purchases() and bef (information on sex and date of birth) to drop rows with metformin purchases that are potentially for the treatment of polycystic ovary syndrome. This function only performs a filtering operation so it outputs the same structure and variables as the input from keep_gld_purchases(), except the addition of a logical helper variable no_pcos that is used in later functions. After these rows have been dropped, the output is used by drop_pregnancies().

Usage

drop_pcos(gld_purchases, bef)

Arguments

gld_purchases

The output from keep_gld_purchases().

bef

The bef register.

Value

The same type as the input data, default as a tibble::tibble(). It also has the same columns as keep_gld_purchases(), except for a logical helper variable no_pcos that is used in later functions.

See also

See the vignette("algorithm") for the logic used to filter these patients.

Examples

if (FALSE) { # \dontrun{
register_data <- simulate_registers(c("lmdb", "bef"), 100)
drop_pcos(
  gld_purchases = keep_gld_purchases(register_data$lmdb),
  bef = register_data$bef
)
} # }