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. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: Arch Sex Behav. 2020 Jun 4;49(6):1995–2003. doi: 10.1007/s10508-020-01744-5

Table 2:

Distribution of participant characteristics according to group sex type

Familiar
Known partners
Private places
Drug use		 Intimate
Threesomes
Private places
No drug use		 Impromptu
Spontaneous
Unknown partners
Public places		 Party
Large groups
Planned
Unknown partners		 p2
n1 303
29%		 279
27%		 370
36%		 81
8%
Median (IQR) age
% born in the Netherlands
% with university degree or higher
% residing in Amsterdam
% exclusively homosexual		 42 (36-49)
84%
80%
78%
85%		 39 (31-45)
89%
82%
83%
82%		 44 (38-50)
85%
83%
81%
85%		 46 (37-51)
67%
75%
81%
67%		 <0.001
<0.001
0.38
0.55
0.001

This table concerns data on participants each time they reported a group sex act. Some participants reporting multiple group sex acts over the course of follow-up could belong to more than one group.

1.

n in this table represents number of group sex events (total of 1033 events occurring in 392 participants)

2.

Overall significance determined from Pearson’s X2 test for categorical variables or Kruskal-Wallis test for continuous variables.