“…Overall, 10 articles focused on AHT, with children’s ages all under five years (age range: 0.2 months - 4 years). Most of the studies (n = 7) estimated the incidence rate of AHT (Chang et al, 2020; Emrick et al, 2019; Fujiwara et al, 2012; Parks, Kegler, et al, 2012; Parks, Sugerman, et al, 2012; Shanahan et al, 2013; Yamaoka et al, 2020), two studies compared the demographic characteristics or health care utilization between victims of AHT and other children (Bailhache et al, 2020; Ettaro et al, 2004), two focused on describing the characteristics of children with AHT (Chang et al, 2020; Yamaoka et al, 2020), and one assessed the sensitivity and specificity of AHT coding recommended by the Centers for Disease Control and Prevention (CDC) (Berger et al, 2015). Among the 10 articles, seven (Bailhache et al, 2020; Berger et al, 2015; Chang et al, 2020; Fujiwara et al, 2012; Parks, Kegler, et al, 2012; Parks, Sugerman, et al, 2012; Shanahan et al, 2013) used the definition and codes for AHT recommended by CDC (Parks, Annest, et al, 2012; excluded from our review because it is not a peer-reviewed article).…”