While phenotypically indistinguishable with respect to callousness, individuals with primary and secondary callous–unemotional (CU) traits may show different developmental outcomes. This research predominantly comprised cross-sectional studies of male participants with a focus on maladaptive correlates. Thus, the present study examined whether youth with primary and secondary CU traits identified in Grade 7 reported distinct maladaptive outcomes (internalizing, externalizing, and substance use problems; criminal offenses; and sexual and partner experiences) and adaptive outcomes (health and wellbeing, education, and employment) in adulthood at age 25. We also examined sex differences. Participants included the high-risk control and normative samples from the Fast Track project (N = 754, male = 58%, Black = 46%). Youth with secondary CU traits reported higher levels of adult internalizing and externalizing psychopathology, a greater number of sexual partners and risky sexual behavior, and a greater number of violent offenses, compared with individuals with primary CU traits and those with low CU and anxiety symptoms. Conversely, youth with primary CU traits and low symptoms had higher wellbeing and happiness scores than those with secondary CU traits. Finally, there was differentiation on outcomes between female primary and secondary CU variants and male primary and secondary CU variants.

虽然在表型上无法区分冷酷无情，但具有主要和次要冷酷无情（CU）特征的个体可能会表现出不同的发育结果。这项研究主要包括男性参与者的横断面研究，重点关注适应不良的相关因素。因此，本研究检验了七年级时具有主要和次要 CU 特征的青少年是否报告了明显的适应不良结果（内化、外化和药物使用问题；刑事犯罪；以及性和伴侣经历）和适应性结果（健康和福祉、教育）。 ，和就业）在25岁时成年。我们还研究了性别差异。参与者包括来自快速通道项目的高风险控制样本和规范样本（N = 754，男性 = 58%，黑人 = 46%）。与具有主要 CU 特征以及具有低 CU 和焦虑症状的人相比，具有次要 CU 特征的青少年报告了更高水平的成人内化和外化精神病理学、更多的性伴侣和危险性行为以及更多的暴力犯罪。相反，具有主要 CU 特征且症状较低的青少年比具有次要 CU 特征的青少年具有更高的幸福感和幸福感得分。最后，女性原发性和继发性 CU 变异与男性原发性和继发性 CU 变异之间的结果存在差异。