“…Notably, allelic variants of each have been associated with adverse psychiatric outcomes (e.g., Kaufman et al., 2004; de Lara et al., 2006). However, although interactions between 5‐HTTLPR alleles and adversity in predicting psychopathology are well studied (e.g., Caspi et al., 2010), STin2 has not been studied extensively (for exceptions see Sattler et al., 2019; Sulik et al., 2012). In addition, in many existing studies STin2 is included with 5‐HTTLPR (e.g., de Lara et al., 2006; Fan & Sklar, 2005; Smits et al., 2004), even though it exerts independent effects on important mental health outcomes.…”