match_cohort_ function

Match Cohort Using Mahalanobis Distance

This function constructs pairs of vaccinated and unvaccinated individuals with similar characteristics. It relies on the matching algorithm implemented in the package {MatchIt}. By default, the function uses method = "nearest", ratio = 1, and distance = "mahalanobis" to perform the matching.

match_cohort_(data_set, vacc_status_col, exact = NULL, nearest = NULL)

Arguments

• data_set: data.frame with cohort information.
• vacc_status_col: Name of the column containing the vaccination.
• exact: Name(s) of column(s) for exact matching
• 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).

Returns

data.frame with the matched population.