Table 1.
Baseline characteristics according to sexual behavior of 465 HIV-negative MSM who engaged in group sex and/or dyadic casual sex, Amsterdam Cohort Studies, 2009–2012, the Netherlands.
| Total | Sexual behavior in the preceding 6 months
|
P-value | ||
|---|---|---|---|---|
| Engagement in both group sex and dyadic sex | Engagement in dyadic sex only | |||
|
|
|
|
||
| N=465 MSM | N=170 MSM | N=295 MSM | ||
| Age Median (IQR) | 36.1 (31.9–41.1) | 37.0 (32.7–42.4) | 35.7 (31.3–40.5) | 0.027 |
| Ethnic origin* | ||||
| Western European origin | 430/461 (93%)** | 156/168 (93%) | 247/293 (94%) | 0.786 |
| Non-Western European origin | 31/461 (7%) | 12/156 (7%) | 19/293 (7%) | |
| Educational level* | ||||
| College degree | 339/452 (75%) | 121/164 (74%) | 218/288 (76%) | 0.651 |
| Less than college degree | 113/452 (25%) | 43/164 (26%) | 70/288 (24%) | |
| Sexual orientation* | ||||
| Exclusively gay | 339/449 (76%) | 122/165 (74%) | 217/284 (76%) | 0.558 |
| Not exclusively gay | 110/449 (25%) | 43/165 (26%) | 67/284 (24%) | |
| Have a steady partner* | 262/453 (58%) | 110/167 (66%) | 152/286 (53%) | 0.008 |
| Number of casual partners | ||||
| Median (IQR) | 10 (5–22) | 11 (5–23) | 4 (2–7) | 0.000 |
*
Totals might not add up due to missing values.
**
In calculation of percentages, missing values were excluded.
IQR, inter quartile range.