rematch_ function

Rematch Step for Iterative Match

This auxiliary function performs the re-matching strategy for iterate_match(). It rematches the population with status given by rematch_status and excludes the removed population with status control_status. A tryCatch validation handles errors when no matches can be generated due to the lack of treated or untreated individuals.

rematch_(
  all,
  adjusted,
  outcome_date_col,
  censoring_date_col,
  immunization_date_col,
  removed_i,
  vacc_status_col,
  rematch_status,
  control_status,
  nearest,
  exact,
  start_cohort,
  end_cohort,
  im
)

Arguments

• all: data.frame with the entire cohort.
• adjusted: data.frame with the adjusted cohort to calculate removed cases. Default is NULL, which returns 0.
• outcome_date_col: Name of the column that contains the outcome dates.
• censoring_date_col: Name of the column that contains the censoring date.
• immunization_date_col: Name of the column that contains the immunization date to set the beginning of the follow-up period (t0_follow_up).
• vacc_status_col: Name of the column containing the vaccination.
• nearest: Named vector with name(s) of column(s) for nearest matching and caliper(s) for each variable (e.g., nearest = c("characteristic1" = n1, "characteristic2" = n2), where n1 and n2 are the calipers).
• exact: Name(s) of column(s) for exact matching
• start_cohort: Start date of the study.
• end_cohort: End date of the study.
• im: Iteration number for error message

Returns

List that contains three data.frame: adjusted: updated adjusted matches adjusted_i_s: new adjusted matches for rematch_status

matched_i_s: all the new matches for rematch_status