Although previous studies have documented spousal resemblance in health attributes, questions remain regarding the longitudinal resemblance of spouses' body mass index (BMI) and the possible formation of couple-level BMI trajectory patterns. Consequentially, we know little about how the longitudinal resemblance of spouses' BMI may link couples' varying socioeconomic experiences to their physical health outcomes in later years. Thus, the present study using prospective data from a sample of 255 couples in enduring marriages over a period of 26 years (from 1991 to 2017) examined (a) the existence of couple-level BMI trajectory patterns in mid-later years, (b) their social stratification into heterogeneous groups of couples associated with family economic hardship (FEH), and (c) differential later-life health outcomes of these groups. The results provided evidence for groups of couples with distinct BMI trajectory patterns. These groups were associated with latent groups of FEH trajectories, suggesting a persistent association between couple BMI and FEH. Couple BMI trajectory patterns were consequential for physical health consequences in later years. Two features of couple BMI trajectory patterns, severity and synchrony, were utilized to explain these associations. Taken together, the results provided evidence for a couple-level FEH-BMI-health process over the life course and emphasize the impact of severity and synchrony in couples' BMI for their health problems in later adulthood. Findings are discussed as they relate to health policies and interventions focusing on the well-being of married couples in later life, particularly the need for couple-focused obesity-related interventions and policies that mitigate economic hardship given its long-lasting health impacts. (PsycINFO Database Record (c) 2020 APA, all rights reserved).

中文翻译：

---

中后期夫妻 BMI 轨迹模式：社会经济分层和晚年身体健康结果。

虽然之前的研究已经证明配偶在健康属性方面的相似性，但关于配偶体重指数 (BMI) 的纵向相似性以及夫妻水平 BMI 轨迹模式的可能形成仍存在问题。因此，我们对配偶 BMI 的纵向相似性如何将夫妇不同的社会经济经历与他们晚年的身体健康结果联系起来知之甚少。因此，本研究使用来自 26 年（从 1991 年至 2017 年）持久婚姻的 255 对夫妇样本的前瞻性数据检查（a）中后期夫妻水平 BMI 轨迹模式的存在，（b ) 他们的社会分层为与家庭经济困难 (FEH) 相关的异质夫妻群体，以及 (c) 这些群体的不同的晚年健康结果。结果为具有不同 BMI 轨迹模式的夫妇组提供了证据。这些组与 FEH 轨迹的潜在组相关，表明夫妻 BMI 和 FEH 之间存在持续关联。夫妻 BMI 轨迹模式对晚年的身体健康后果产生影响。夫妇 BMI 轨迹模式的两个特征，严重性和同步性，被用来解释这些关联。综上所述，这些结果为整个生命过程中夫妻水平的 FEH-BMI-健康过程提供了证据，并强调了夫妻 BMI 的严重性和同步性对其成年后期健康问题的影响。讨论结果是因为它们与关注已婚夫妇晚年福祉的健康政策和干预措施有关，鉴于肥胖对健康的长期影响，特别需要以夫妻为中心的肥胖相关干预措施和政策，以减轻经济困难。（PsycINFO 数据库记录 (c) 2020 APA，保留所有权利）。