Table 3.

Baseline data of sociodemographic characteristics, sexual behaviour, STI diagnosis and HIV status, according to self-identified gender of TGP-AFAB visiting the public health service of Amsterdam and The Hague, the Netherlands, January 2017–December 2018

	Transgender men n=32 (57.1%) n (%)	Man and woman n=6 (10.7%) n (%)	Neither man nor woman n=14 (25.0%) n (%)	Other n=2 (3.6%) n (%)	Not known yet n=2 (3.6%) n (%)	P value	Total N=56 n (%)
Demographics
Median age in years (IQR)	26 (21–32)	23 (20–30)	23 (20–31)	–*	–*	0.938	24 (21–31)
Education (n=9 missing)						0.258
Low	2 (8.0)	2 (40.0)	0	0	0		4 (8.5)
Middle	8 (32.0)	0	1 (7.7)	0	0		9 (19.1)
High	13 (52.0)	2 (40.0)	9 (69.2)	2 (100)	2 (100)		28 (59.6)
Other	2 (8.0)	1 (20.0)	3 (23.1)	0	0		6 (12.8)
Ethnic origin†						0.918
The Netherlands	14 (43.8)	2 (33.3)	6 (42.9)	2 (100)	1 (50.0)		25 (44.6)
Asia	4 (12.5)	0	1 (7.1)	0	0		5 (8.9)
Africa	2 (6.2)	2 (33.3)	3 (21.4)	0	0		7 (12.5)
Latin America and the Caribbean	3 (9.4)	1 (16.7)	1 (7.1)	0	1 (50.0)		6 (10.7)
Europe	5 (15.6)	1 (16.7)	1 (7.1)	0	0		7 (12.5)
Unknown	4 (12.5)	0	2 (14.3)	0	0		6 (10.7)
Gender-affirming surgery						0.752
Penis construction  (n=1 missing)	3/31 (9.7)	0	0	0	0		3/55 (5.5)
Sexual behaviour in past 6 months
Median number of sex partners (IQR)‡ (n=9 missing)	4(1–8)	3(1–8)	3(1–6)	–*	–*	0.920	3 (1–6)
Sex work (n=7 missing)	1/26 (3.8)	1 (16.7)	1/13 (7.7)	0	0	0.999	3/49 (6.1)
Sex with (n=2 missing)						0.201
Men	16 (51.6)	1 (16.7)	3 (23.1)	1 (50)	0		21 (38.9)
Women	7 (22.6)	1 (16.7)	2 (15.4)	0	0		10 (18.5)
Both	8 (25.8)	4 (66.7)	8 (61.5)	1 (50)	2 (100)		23 (42.6)
Partner type (n=22 missing)	18/32	4/6	8/14			0.200	34/56
Steady only	2 (11.1)	0	0	0	0		2 (5.9)
Casual only	13 (72.2)	2 (50.0)	2 (25.0)	2 (100)	1 (50.0)		20 (58.8)
Steady and casual	3 (16.7)	2 (50.0)	5 (62.5)	0	1 (50.0)		11 (32.4)
No sex	0	0	1 (12.5)	0	0		1 (2.9)
Giving fellatio§
Giving condomless fellatio  (n=18 missing)	13/13 (100)	3/3 (100)	5/5 (100)	0	2/2 (100)		23/23 (100)
Anal sex
Condomless receptive anal sex¶  (n=9 missing)	4/8 (50.0)	1/1 (100)	1/1 (100)	0	2/2 (100)	0.774	8/12 (66.7)
Condomless insertive anal sex**  (n=1 missing)	0/2	NA	NA	NA	NA		0/2
Vaginal sex †† (n=8 missing)
Condomless vaginal sex	11/13 (84.6)	3/5 (60.0)	3/8 (37.5)	2/2 (100)	2/2 (100)	0.157	21/30 (70.0)
Bacterial STI
Any bacterial STI‡‡ (n=2 missing)	2/31 (6.5)	0/6	1/13 (7.7)	0/2	0/2	0.999	3/54 (5.6)
Chlamydia (one or more locations)	2/31 (6.5)	0/6	1/13 (7.7)	0/2	0/2	0.999	3/54 (5.6)
Pharyngeal	1/23 (4.3)	0/6	0/11	0/1	0/2	0.999	1/43 (2.3)
Rectal	1/24 (4.2)	0/6	0/11	0/1	0/2	0.999	1/44 (2.3)
Urethral (vagina)	1/26 (3.8)	0/6	1/13 (7.7)	0/2	0/2	0.999	2/49 (4.1)
Urethral (neopenis)	0/3	NA	NA	NA	NA		0/3
Gonorrhoea (one or more locations)	0/31	0/6	0/13	0/2	0/2		0/54
Pharyngeal	0/23	0/6	0/11	0/1	0/2		0/43
Rectal	0/24	0/6	0/11	0/1	0/2		0/44
Urethral (vagina)	0/25	0/6	0/13	0/2	0/2		0/48
Urethral (neopenis)	0/3	NA	NA	NA	NA		0/3
Infectious syphilis	0/29	0/6	0/11	0/2	0/2		0/50
HIV (n=2 missing)						0.727
Opt-out	2/31 (6.5)	0	2/13 (15.4)	0	0		4/54 (7.4)
Known positive	0	0	0	0	0		0
Negative tested	29/31 (93.5)	6 (100)	11/13 (84.6)	2 (100)	2 (100)		50/54 (92.6)
Positive tested	0	0	0	0	0		0

*Too small sample size to calculate media and IQR (n=2).

†Ethnicity was defined according to Statistics Netherlands on the basis of country of birth, maternal and paternal countries of birth.²⁶

‡Giving fellatio, vaginal and/or anal sex.

§Among those who reported giving fellatio (only data from Amsterdam).

¶Among those who reported receptive anal sex with men.

**Among those who reported insertive anal sex and currently having a penis.

††Among those who reported vaginal sex and currently having a vagina and having sex with men or if currently having a penis and having sex with women.

‡‡Bacterial STI: chlamydia, gonorrhoea and/or infectious syphilis.

NA, not applicable; TGP-AFAB, transgender people assigned female at birth.