{"title":"Effect of family caregiving on depression outcome among older European adults","authors":"Sherry Shu-Yeu Hou , Jee Won Park , Arijit Nandi","doi":"10.1016/j.ssmph.2025.101857","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Most caregiver health studies rely on observational data and traditional regression methods, which fail to account for time-varying confounding, limiting causal inference. This analysis uses inverse probability weighting (IPW) to appropriately account for time-varying confounding in caregiving-depression relationship.</div></div><div><h3>Methods</h3><div>Using seven waves (2004–2019) of the Survey of Health, Ageing and Retirement in Europe, we estimated the effect of caregiving on probable depression (having 4+ symptoms) comparing daily and some caregiving to no caregiving. We accounted for censoring and potential measured confounding by time-fixed covariates (gender, number of children, country, and education) and time-varying covariates (age, employment, marital status, income, physical limitations, psychiatric medication, receiving help, previous caregiving, and previous depression) using IPCW and IPTW. The product of the two weights was applied to a marginal structural model to obtain the causal estimand on the prevalence difference scale. Confidence intervals were derived from bootstrapping.</div></div><div><h3>Results</h3><div>Among 36 346 participants and 67 800 person-waves, compared to no caregiving in the last year, daily caregiving was associated with a 6.7 percentage point (95 % CI: 4.8 %, 8.6 %) increase in the prevalence of probable depression, after accounting for time-fixed and time-varying covariates. Some caregiving was not associated with probable depression (PD = 0.5, 95 % CI = −0.8 %, 1.8 %).</div></div><div><h3>Conclusions</h3><div>Our results support existing findings that high levels of caregiving may increase the prevalence of probable depression, while lower levels of caregiving do not. Accurate documentation of the relationship between caregiving and health outcomes is foundational in creating evidence-based policies to support healthy aging.</div></div>","PeriodicalId":47780,"journal":{"name":"Ssm-Population Health","volume":"32 ","pages":"Article 101857"},"PeriodicalIF":3.1000,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ssm-Population Health","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352827325001119","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Most caregiver health studies rely on observational data and traditional regression methods, which fail to account for time-varying confounding, limiting causal inference. This analysis uses inverse probability weighting (IPW) to appropriately account for time-varying confounding in caregiving-depression relationship.
Methods
Using seven waves (2004–2019) of the Survey of Health, Ageing and Retirement in Europe, we estimated the effect of caregiving on probable depression (having 4+ symptoms) comparing daily and some caregiving to no caregiving. We accounted for censoring and potential measured confounding by time-fixed covariates (gender, number of children, country, and education) and time-varying covariates (age, employment, marital status, income, physical limitations, psychiatric medication, receiving help, previous caregiving, and previous depression) using IPCW and IPTW. The product of the two weights was applied to a marginal structural model to obtain the causal estimand on the prevalence difference scale. Confidence intervals were derived from bootstrapping.
Results
Among 36 346 participants and 67 800 person-waves, compared to no caregiving in the last year, daily caregiving was associated with a 6.7 percentage point (95 % CI: 4.8 %, 8.6 %) increase in the prevalence of probable depression, after accounting for time-fixed and time-varying covariates. Some caregiving was not associated with probable depression (PD = 0.5, 95 % CI = −0.8 %, 1.8 %).
Conclusions
Our results support existing findings that high levels of caregiving may increase the prevalence of probable depression, while lower levels of caregiving do not. Accurate documentation of the relationship between caregiving and health outcomes is foundational in creating evidence-based policies to support healthy aging.
期刊介绍:
SSM - Population Health. The new online only, open access, peer reviewed journal in all areas relating Social Science research to population health. SSM - Population Health shares the same Editors-in Chief and general approach to manuscripts as its sister journal, Social Science & Medicine. The journal takes a broad approach to the field especially welcoming interdisciplinary papers from across the Social Sciences and allied areas. SSM - Population Health offers an alternative outlet for work which might not be considered, or is classed as ''out of scope'' elsewhere, and prioritizes fast peer review and publication to the benefit of authors and readers. The journal welcomes all types of paper from traditional primary research articles, replication studies, short communications, methodological studies, instrument validation, opinion pieces, literature reviews, etc. SSM - Population Health also offers the opportunity to publish special issues or sections to reflect current interest and research in topical or developing areas. The journal fully supports authors wanting to present their research in an innovative fashion though the use of multimedia formats.