Table 1.

Dry-mouth patient groups in this study listed on the basis of their health status. The abbreviation used per patient group is listed, together with the group’s health status

Patient groups	Abbreviation used in this study	Health status
Controls	Controls	None of the conditions listed below (i.e., radiation head and/or neck and Sjögren syndrome). Used no prescription medication
Patients using limited medication	Low Med patients	None of the conditions listed below. Used < 4 different prescription medications
Patients using multiple medications	High Med patients	None of the conditions listed below. Used ≥ 4 different prescription medications
Irradiated patients	RTX patients	Radiation of the head and/or neck area. Used < 4 different prescription medications
Irradiated patients using multiple medications	RTX + High Med patients	Radiation of the head and/or neck area. Used ≥ 4 different prescription medications
Sjögren syndrome patients	SS patients	Sjögren syndrome. Used < 4 different prescription medications
Sjögren patients using multiple medications	SS + High Med patients	Sjögren syndrome. Use ≥ 4 different prescription medications