“…Supplementary Table S 11 summarises the key characteristics of the 36 studies reviewed. For the 22 economic evaluations, two studies were from low-income countries [ 21 , 27 ], three from lower-middle-income countries [ 32 , 33 , 41 ], three from upper-middle-income countries [ 22 , 29 , 31 ], eight from high-income countries [ 23 , 35 – 40 , 42 ], and six from a mixture of countries [ 24 – 26 , 28 , 30 , 34 ]. Fifteen studies (68%) reported the cost-effectiveness of antenatal screening for syphilis [ 21 , 22 , 24 – 34 , 36 , 37 ].…”