This study aimed to (a) reliably obtain intermittency periods (i.e., time gaps between incarcerations) using days as the unit of time and (b) investigate the effects of mental health needs assessed during the first incarceration on the hazard of subsequent reincarcerations among justice-involved youth (JIY). The multiyear administrative data from Harris County, TX, contained 28,255 JIY who were followed up until 18 years of age. There was a progressive shortening of the time gaps between incarcerations over time. Results of conditional Cox models revealed that mental health needs had sustained, though weakened, effects on future intermittency periods. An increased reincarceration risk (shorter intermittent intervals between incarcerations) was associated with higher self-reported ratings of Alcohol/Drug Use and Angry-Irritable. A decreased reincarceration risk (longer intermittent intervals between incarcerations) was associated with higher self-reported ratings of Depression/Anxiety and Somatic Complaints. Theoretical and practical implications are discussed.

本研究旨在 (a) 以天为时间单位可靠地获得间歇期（即监禁之间的时间间隔），以及 (b) 调查在第一次监禁期间评估的心理健康需求对司法人员后续再监禁风险的影响- 参与青年（JIY）。德克萨斯州哈里斯县的多年行政数据包含 28,255 名 JIY，他们被跟踪到 18 岁。随着时间的推移，监禁之间的时间间隔逐渐缩短。条件 Cox 模型的结果表明，心理健康需求对未来的间歇期产生了持续的影响，尽管减弱了。再入狱风险增加（入狱之间的间歇性间隔更短）与自我报告的酒精/药物使用和愤怒易怒等级较高相关。再入狱风险降低（入狱之间的间歇性间隔更长）与更高的抑郁/焦虑和躯体主诉的自我报告评级相关。讨论了理论和实践意义。