Table 2. Characterization of SWA practice among men treated at CR-IST/AIDS in Juazeiro-BA and Petrolina-PE (Northeastern Brazil) in 2018 and 2019.

Variable	Category	n	%
SWA	Yes	60	15.00
Last SWA	1 to 4 years ago	3	5.00
	5 to 9 years ago	0	0.0
	10 to 19 years ago	10	16.67
	More than 20 years	47	78.33
Animal	Asinines and mules	46	76.66
	Goats	27	45.00
	Gallinaceous	20	33.33
	Calf	15	25.00
	Horses (Horse / mare)	13	21.66
	Sheep	11	18.33
	Adult Cattle	7	11.66
	Swine	4	6.66
	Canine	1	1.66
	Feline	1	1.66
	Duck / mallard / goose	1	1.66
Animal sex	Only Females	56	93.33
	Only males	1	1.67
	Females and males	3	5.00
Exposure time (years)	Mean initial age (DP)	12.37 (3.78)
	Median (Min-Max)	12 (7-31)
	Mean final age (DP)	16.43 (7.86)
	Median (Min-Max)	15 (7-60)
Frequency	Once to 3 times a week	19	31.67
	Once to twice times a month	11	18.33
	Once every 2 months	6	10.00
	2 to 4 times a year	7	11.67
	Anual	6	10.00
	Once in a lifetime	11	18.33
Variation of animals with each coitus	Always with the same animal	28	46.67
	Different animals in coitus	32	53.33
Presence of human companionship during SWA	Generally individual	35	58.33
	Generally, in a group	22	36.67
	Both	3	5.00
Position during SWA	Insertive	59	98.33
	Receptive	0	0
	Both	1	1.67
Type of relationship with the animal	Vaginal	58	96.67
	Oral	0	0.0
	Anal	5	8.33
	Masturbation	3	5.00
Condom use during SWA	No	57	94.99
	Always	1	1.67
	More than half the time	1	1.67
	Less than half the time	1	1.67
Uses internet to search for SWA content	No	43	71.67
	Yes	17	28.33
Type of content searched for on the internet related to SWA	Porn movies	16	94.12
	Imagens	9	52.94
	Social networks	0	0.0
SWA X HIV infection	Not applicable	45	75.00
	SWA only prior to HIV diagnosis	14	23.33
	SWA only after HIV diagnosis	0	0.0
	SWA before and after HIV diagnosis	1	1.67