Table 1

Description of participants included in three cross-sectional biobehavioural surveys of men who have sex with men conducted in Montréal, Québec (Canada) (2005–2018, before any imputation or standardisation)

Characteristics200520092018
(n=1795)(n=1258)(n=1086)
n (%)n (%)n (%)
HCV seropositivity95 (5)49 (4)58 (5)
HIV seropositivity224 (13)193 (15)200 (18)
Reactive syphilis serology93 (5)116 (9)194 (18)
Age38 (28–47)*40 (30–47)*34 (28–49)*
Income ≥$C30 000 in the past year891 (50)763 (61)461 (42)
Education level higher than high school1217 (68)537 (43)806 (74)
Sexual orientation other than gay/homosexual336 (19)107 (9)205 (19)
Born outside of Canada244 (14)194 (15)348 (32)
Self-reported ethnicity or family background
 Indigenous33 (2)†16 (1)9 (1)
 English Canadian146 (8)†108 (9)103 (9)
 French Canadian1219 (68)†865 (69)537 (49)
 European105 (6)†119 (9)157 (14)
 Asian31 (2)†14 (1)40 (4)
 Arab or North African28 (2)†20 (2)44 (4)
 Sub-Saharan African3 (<1)†3 (<1)9 (1)
 Latin, South or Central American60 (3)†29 (2)92 (8)
 Caribbean20 (1)†7 (1)9 (1)
 Oceanian (eg, Australian, Pacific Islander)2 (<1)†01 (<1)
 Other84 (5)†61 (5)74 (7)
First language other than French/English125 (7)101 (8)74 (7)
Transactional sex in the P6M‡329 (18)†187 (15)†108 (10)
CAS with a man of serodiscordant/unknown HIV status in the P6M200 (11)†251 (20)†395 (36)†
>5 male sexual partners in the P6M§664 (37)569 (45)533 (51)
Group sex in the P6M479 (27)407 (32)†252 (23)
History of injection drug use¶128 (7)†147 (12)110 (10)
  • *Median (IQR).

  • †More than 2% of observations were missing for this variable, in this data set.

  • ‡Transactional sex was defined as having given/received money, drugs, or other goods or services in exchange for sex in the P6M.

  • §Male sexual partners included both oral and anal sexual partners.

  • ¶Lifetime injection of any non-prescribed drug was considered as a previous experience of injection drug use.

  • CAS, condomless anal sex; HCV, hepatitis C virus; P6M, past 6 months.