make_table_02() to produce FDA Table 2 (Baseline
Demographic and Clinical Characteristics, Safety Population). The
function filters for the safety population, builds a
gtsummary table with continuous (mean/SD, median/range) and
categorical (n/%) summaries by treatment arm, and optionally returns the
intermediate ARD (return_ard = TRUE).dplyr from Suggests to
Imports to support make_table_02().