OBJECTIVE To estimate correlates of early intervention (EI) service dosage and gains in children's functional capabilities from EI entry and discharge. DESIGN Retrospective cohort study SETTING: Secondary analyses of a subset of data (n=1,005) collected from an EI administrative database on children discharged from a large, urban EI program between 10/1/2014 and 9/30/16. PARTICIPANTS Children who were EI eligible due to developmental delay, had received an EI care plan and at least 1 billable EI service, and had outcomes data at EI entry and exit. Measured child characteristics included age (49.0% 12-24 months [n=492]), sex (36.0% female [n=362]), number of developmental delays (76.1% had one developmental delay [n=765]), and number of EI services received (78.5% received multiple [n=789]). INTERVENTION N/A MAIN OUTCOME MEASURES: Outcomes were EI service intensity (hours per month) and change in functional capabilities as measured via the state-mandated Child Outcomes Summary (COS). Adjusted quantile median regression estimated EI intensity. Adjusted linear regression estimated change in function for social-emotional, cognitive, and adaptive domains of the COS. Measures of children's developmental delay severity, age at EI entry, race and ethnicity, sex, and language. RESULTS Children older than 24 months old experienced significantly higher EI service intensity (b=0.40, 95% CI: 0.18, 0.63). Child age and EI service intensity were significantly linked to gains in social and cognitive COS score changes from EI entry to exit. CONCLUSION(S) Older children receive a higher intensity of EI services. EI service intensity and age were linked with positive changes in functional gains.

中文翻译：

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早期干预服务强度与儿童功能能力变化

目的 估计早期干预 (EI) 服务剂量与儿童从 EI 进入和出院获得的功能能力的相关性。设计 回顾性队列研究设置：对从 2014 年 1 月 1 日至 2016 年 9 月 30 日期间从大型城市 EI 计划出院的儿童的 EI 管理数据库收集的数据子集 (n=1,005) 进行二次分析。参与者 由于发育迟缓而符合 EI 资格的儿童，已接受 EI 护理计划和至少 1 项可计费的 EI 服务，并且在 EI 进入和退出时有结果数据。测量的儿童特征包括年龄（49.0% 12-24 个月 [n=492]）、性别（36.0% 女性 [n=362]）、发育迟缓次数（76.1% 有一次发育迟缓 [n=765]），以及收到的 EI 服务数量（78.5% 收到多次 [n=789]）。干预 不适用 主要结局指标：结果是 EI 服务强度（每月小时数）和通过州规定的儿童结果摘要 (COS) 衡量的功能变化。调整后的分位数中值回归估计 EI 强度。调整后的线性回归估计了 COS 的社会情感、认知和适应领域的功能变化。测量儿童发育迟缓的严重程度、EI 入学年龄、种族和民族、性别和语言。结果 24 个月以上的儿童经历了显着更高的 EI 服务强度 (b=0.40, 95% CI: 0.18, 0.63)。儿童年龄和 EI 服务强度与从 EI 进入到退出的社会和认知 COS 得分变化的收益显着相关。结论 (S) 年龄较大的儿童接受更高强度的 EI 服务。