In family caregiving interventions for adults with health problems, tailoring has become the norm. Studies that evaluate tailored interventions, however, have rarely included intentional variation in dosage or explored the dosage-outcome association. In this Part 1 secondary analysis, we examine dosage and outcomes in intervention families (N = 116) who participated in the Oregon Health & Science University/Kaiser Permanente Northwest Region Family Care Study. The Family Care Study was a randomized controlled trial to evaluate the preparedness, skill, enrichment, and predictability (PREP) intervention with caregiving families of frail older adults referred for skilled home health. Tailoring of PREP began with assessment by the PREP nurse. Families then identified and selected care-related issues to work on with their PREP nurse; family needs and preferences guided the number and timing of nurse visits and calls. Families selected a median of 3 (range = 0 to 10) care-related issues in five categories: direct care (chosen by 57% of families), transitions (40%), caregiver strain and health (40%), arranging care (33%), and enrichment (22%). The number of issues strongly predicted number of PREP nurse visits and calls, whereas nurse visits in turn predicted caregivers' reports of improved family care and usefulness of home health assistance, highlighting the importance of visits for achieving outcomes. [Research in Gerontological Nursing, 16(2), 57–70.]

在针对有健康问题的成年人的家庭护理干预中，量身定制已成为常态。然而，评估定制干预措施的研究很少包括有意改变剂量或探索剂量与结果之间的关联。在第 1 部分二次分析中，我们检查了参与俄勒冈健康与科学大学/凯撒永久西北地区家庭护理研究的干预家庭 ( N = 116) 的剂量和结果。家庭护理研究是一项随机对照试验，旨在评估对转诊至熟练家庭健康的体弱老年人的护理家庭的准备、技能、充实和可预测性 (PREP) 干预。 PREP 的定制始于 PREP 护士的评估。然后，家庭确定并选择与护理相关的问题，与 PREP 护士一起解决；家庭需求和偏好决定了护士探访和打电话的次数和时间。家庭在五个类别中选择了中位数为 3 个（范围 = 0 到 10）的护理相关问题：直接护理（57% 的家庭选择）、过渡（40%）、护理人员压力和健康（40%）、安排护理（ 33%）和浓缩（22%）。问题的数量强烈预测了 PREP 护士拜访和呼叫的数量，而护士拜访反过来又预测了护理人员关于改善家庭护理和家庭健康援助有用性的报告，强调了拜访对于实现结果的重要性。 [老年护理研究，16（2），57-70。]