Table 2

Motivators and barriers towards HIV and other STI testing

	Themes		Subthemes
Motivators to testing	HIV	Internal	Perceived risk of acquiring HIV. Perceived susceptibility to HIV as GBMSM. Perceived symptoms of HIV.
	HIV	External	Social influence. Accessibility of HIV testing services.
	Other STIs	Internal	Perceived symptoms of STI.
	Other STIs	External	Notification of STI diagnosis by past sexual partners.
	Simultaneous HIV/STI testing	External	Availability of bundle tests. Starting a new relationship. Mandatory testing.
Barriers to testing	HIV	Internal	Fear of diagnosis.
	HIV	External	Confidentiality for HIV testing.
	Other STI	Internal	Low perceived severity of other STIs.
	Other STI	External	Cost of STI tests.