Fig. 1

A narrative analysis of patients' reported experiences was conducted for both traditional OAT (A) and buprenorphine implant (B). The analysis was conducted by categorizing the statements related to each treatment into the five identified topics positioned at the vertices of the pentagon. The number of positive (blue line) and negative (red line) statements per topic were plotted along the direction of the corresponding vertex and connected by a 5-pointed closed line. The distance from the centre indicates the frequency of iterations. Notably, the scale of the pentagon differs between the two graphs