Internal function, not called directly.
summary_factorlist0(.data, dependent, explanatory, cont = "mean",
cont_range = FALSE, cont_cut = 5, p = FALSE, digits = c(1, 1, 3,
1), na_include = FALSE, column = FALSE, total_col = FALSE,
orderbytotal = FALSE, fit_id = FALSE, na_to_missing = TRUE,
add_dependent_label = FALSE, dependent_label_prefix = "Dependent: ",
dependent_label_suffix = "")