Table 1. Classification of self-reported heterosexual men based on who they were linked to in the same network.

Who they linked to	Classification
1. MSM only	pnMSM
2. MSM and self-reported heterosexual men	pnMSM
3. Self-reported heterosexual men only	Indeterminate
4. Women and MSM	pnMSM
5. Women only	Potential heterosexual men
6. Women and self-reported heterosexual men	Indeterminate
7. MSM, women, and self-reported heterosexual men	pnMSM
8. Singleton (not linked to any other person)	Indeterminate

MSM: Men who have sex with men.

pnMSM: Potential non-disclosed MSM.