subgroup analysis

Subgroup analysis refers to repeating the analysis of a study within subgroups of subjects defined by a subgrouping variable. For example: smoking status defining two subgroups: smokers and non-smokers.{{

cite journal

|author=Lagakos SW

|journal=NEJM

|title=The Challenge of Subgroup Analyses — Reporting without Distorting

|date=20 April 2006

|volume = 354

|issue = 16

|pages = 1667–9

|pmid = 16625007

|doi=10.1056/NEJMp068070

|s2cid=567177

}}