The Halitosis Consequences Inventory: psychometric properties and relationship with social anxiety disorder

Individuals who complain of halitosis experience psychological consequences that can lead to social, professional, and affective limitations. Research has identified social anxiety disorder (SAD) as the most common psychopathology associated to halitosis complaints. Combining these two lines of research, we sought to determine the validity of the Halitosis Consequences Inventory (ICH), a scale designed to assess the psychological consequences of halitosis complaints. We also investigated the relationship between these consequences and SAD.

Participants were 436 individuals, including those with and without halitosis complaints (n=411 and n=25, respectively). Measures administered were the ICH, Social Phobia Inventory and its shortened version, the Liebowitz Social Anxiety Scale, Social Avoidance and Distress Scale, and Fear of Negative Evaluation scale.

The ICH had adequate internal consistency (α=0.93) and could accurately discriminate between participants with and without halitosis complaints. Furthermore, individuals with high scores on the ICH were more likely to have SAD.

The ICH is an important tool for determining the aversive halitosis consequences, allowing to identify, with some degree of accuracy, individuals who might require screening for SAD. Besides, there´s a linear relationship between the presence of halitosis consequences and SAD.