“…Concerning study characteristics, thirteen out of 31 studies were from the USA (25, 26, 36, 38, 40, 41, 44–46, 48, 50, 52, 54), seven from the UK (30-33, 42, 49, 53), three from Germany (28, 51, 55), one from Switzerland (47), Israel (34), and Wales (37), while five of these studies included analyses for multiple OECD countries (27, 29, 35, 39, 43). The societal perspective was followed in 14 studies (26, 28, 30, 31, 33, 34, 36, 39, 41, 43, 51, 52, 54, 55), while 9 studies performed an analysis via a healthcare perspective (25, 27, 37, 38, 40, 42, 46, 47, 49, 53). Various perspectives were included in 4 studies (44, 45, 48, 50), including the payer for some of them (45, 48, 50), while the perspective considered was unclear in three studies (29, 32, 35).…”