Fig. 2

Alluvial diagrams of condom and PrEP use during anal sex with steady (n = 85)^£, casual (n = 154)^£, and anonymous partners (n = 162)^£ over time

* The p-value between brackets represents the p-value of the chi-square test with Rao and Scott adjustment. This test assessed whether the proportion of each condom and PrEP use combination category differed significantly over time when compared to all other condom and PrEP use combination categories combined

£ 173 participants completed all three study rounds. For the analysis of PrEP and condom use with one particular partner type we excluded participants who either never reported having such partner or reported never having had anal sex with such a partner during the three study rounds. Therefore numbers vary by partner type. None of the participants reported always using condoms and sometimes using PrEP during anal sex with steady partners, therefore, this category is not reported in the alluvial diagram about condom and PrEP use during anal sex with steady partners