3.1 Study characteristics
Two studies were randomised controlled trials with a total of 7,248 participants randomised, conducted in Canada, and across multiple countries. (31, 32) The two observational studies were both conducted in the United Kingdom. (27, 28) Three studies (27, 28, 31) were implemented in a primary care setting, and one implemented in ‘centres’ across multiple countries. (32) A total of 1,302 participants were prescribed a gabapentinoid at baseline. One study had industry sponsorship for editorial support for manuscript preparation. (32) A summary of the study characteristics are reported in Table 1 and the interventions in Table 2.