Table 1.

Basic characteristics of study sample from UK Biobank

		HSV‐1 antibody/seropositivity
Depression	Case/Control	1464/1487
	Sex (Female)	1737 (58.9%)
	Age (SD)	56.2 (7.8)
PHQ score (Continue variable)	Sample	2839
	Sex (Female)	1664 (58.6%)
	Age (SD)	55.9 (7.9)
PHQ score (Category variable)	Case/Control	769/922
	Sex (Female)	976 (57.7%)
	Age (SD)	55.6 (8.0)

Note. Age was described as Mean (standard deviation). The PHQ score is called the patient health questionnaire score and is used to describe the depression status of the participants.

Abbreviation: PHQ, Patient Health Questionnaire.