Table 1.

Sample characteristics (overall and by sexual activity status)

Characteristics	Category	Overall (N = 868)	Sexual activity		Effect size∗	P-value†
			No (N = 522)	Yes (N = 346)
Sex	Male	36.9	28.6	49.7	0.21	<.001
	Female	63.1	71.4	50.3
Age	18–24 years	10.6	10.7	10.4	0.21	<.001
	25–34 years	21.8	15.9	30.6
	35–44 years	16.6	16.5	16.8
	45–54 years	16.7	17.2	15.9
	55–64 years	16.8	18.2	14.7
	65–74 years	13.1	15.3	9.8
	≥75 years	4.4	6.1	1.7
Marital status	Single/separated/divorced/widowed	44.7	50.7	35.8	0.15	<.001
	Married/in a domestic partnership	55.3	49.3	64.2
Employment	No	40.7	46.0	32.7	0.13	<.001
	Yes	59.3	54.0	67.3
Annual household income	<£15,000	14.7	17.9	9.9	0.17	<.001
	£15,000–<£25,000	18.3	20.8	14.5
	£25,000–<£40,000	23.0	22.9	23.2
	£40,000–<£60,000	20.7	19.5	22.6
	≥£60,000	23.3	18.9	29.9
Region	England	77.8	78.5	76.9	0.05	.509
	Northern Ireland	18.9	19.0	18.8
	Scotland	2.1	1.5	2.9
	Wales	1.2	1.0	1.4
Current smoking	No	87.7	86.3	89.8	0.05	.156
	Yes	12.3	13.7	10.2
Current alcohol consumption	No	32.0	37.3	24.0	0.14	<.001
	Yes	68.0	62.7	76.0
Number of chronic physical conditions	Mean (standard deviation)	1.71 (1.98)	1.88 (2.01)	1.45 (1.89)	0.22	.002
Number of chronic psychiatric conditions	Mean (standard deviation)	0.65 (0.87)	0.69 (0.89)	0.60 (0.85)	0.10	.135
Any physical symptom experienced during self-isolation	No	73.9	72.3	76.3	0.04	.233
	Yes	26.1	27.7	23.7
Number of days of self-isolation	Mean (standard deviation)	9.11 (7.03)	8.74 (6.75)	9.69 (7.40)	0.14	.064

Sexual activity was dichotomized into sexual activity (at least one sexual intercourse per week on average) versus no sexual activity (zero sexual intercourse per week on average).

Values are percentages unless otherwise stated.

^∗Effect size was calculated using phi coefficient and Cramer's V for categorical variables and Cohen's d for continuous variables.

^† P-values were based on chi-squared tests for categorical variables and on t-tests for continuous variables.