Table 2. Descriptive characteristics of sexual practice among men who have sex with men (n: 1,301) during the COVID-19 pandemic, considering chemsex*. Portugal, 2020.

Interest variables	Chemsex*						p-value†
	Yes		No		Total
	n	%	n	%	N	%
Social distancing period
Duration of social isolation/distancing (days)							0,060
Less than 29	44	16,7	114	11	158	12,1
Between 30 and 45	116	44,1	502	48,4	618	47,5
More than 45	88	33,5	374	36	462	35,5
Did not adhere to social isolation	15	5,7	48	4,6	63	4,9
How many partners did you have since social distancing measures were imposed?							0,001
None	0	0	466	44,9	466	35,8
1 partner	20	7,6	397	38,2	417	32,0
More than 2	243	92,4	175	16,9	418	32,2
During the social distancing you:
Had sex with penetration without condoms	145	55,1	121	11,7	266	20,5	0,001
Paid for sexual intercourse	16	6,1	35	3,4	51	3,9	0,043
Group sex (sex with 2 or more people simultaneously)	156	59,3	35	3,4	191	14,7	0,001
Protective measures adopted in casual sex to prevent COVID-19
Avoided kissing during sexual intercourse	147	55,9	195	18,8	342	48,7	0,003
Sanitized the place where you had sex	143	54,4	198	19,1	344	48,8	0,017
Washed hands with water and soap	148	56,3	197	19	345	49,9	0,003
Verified whether the sexual partner had signs and symptoms of COVID-19	158	60,1	457	35,1	615	63,7	0,031
Used PrEP ‡ / Truvada	112	42,6	64	6,2	176	25,1	0,001
COVID-19 testing
Yes	83	31,6	167	16,1	250	19,2
No	180	68,4	871	83,9	1051	80,8	0,001
Diagnosed with COVID-19
Yes	41	15,6	58	5,6	99	39,6	0,026
No	42	16	109	10,5	151	60,4

* Chemsex = Sex under the influence of drugs; ^†p = Statistical significance obtained through a Chi-square test; ^‡HIV = Human immunodeficiency Virus; ^§PrEP = Pre-exposure Prophylaxis