Fig. 2
From: Evaluating mechanisms of change in an oral hygiene improvement trial with older adults
Gingival Index Score mean change from baseline to post intervention (T0 to T1). This figure refers to the difference between the gingival index for the two interventions, AMI counseling and campaign, from baseline (Time 0 to Time 1), approximately 1 month past the intervention. The GI mean dropped in both interventions but it dropped significantly more in the AMI counseling intervention than the campaign