Instituto de Sociología, Pontificia Universidad Católica de Chile, Santiago, Chile.
Instituto de Estudios Avanzados, Universidad de Santiago de Chile, Santiago, Chile.
Qual Life Res. 2021 Jan;30(1):41-54. doi: 10.1007/s11136-020-02612-4. Epub 2020 Aug 25.
The increased population aging has resulted in a growing need for longitudinal studies about the quality of life among older people. Nevertheless, the results of these investigations could be biased because more disadvantaged people leave the original sample. The purpose of this study is to examine how the selective attrition observed in a panel survey affect multivariate models of subjective well-being (SWB). The question is if we could do reliable longitudinal investigations concerning the predictors of SWB in old age.
This paper examines attrition in a panel of older people in Chile. Attrition was evaluated in the variables that affect elderly SWB. Probit models were fitted to compare dropouts with nondropouts. Then, multivariate probit models were estimated on satisfaction and depressive symptoms, comparing dropouts and nondropouts. Finally, we compared weighted and unweighted multivariate probit models on SWB.
The attrition rate in 2 years was 38.8%, including deaths and 32.9%, excluding them. Survey dropouts had lower satisfaction but not higher depressive symptoms. Among SWB predictors, people without a partner and with lower self-efficacy abandoned more the study. When applying the Becketti, Gould, Lillard, and Welch test, the probit coefficients of the predictor variables on SWB outcome variables were similar for dropouts and nondropouts. Finally, the comparison of multivariate models on SWB with weighting methods did not find substantial differences in the explanatory coefficients.
Although some predictors of attrition were associated with SWB, attrition did not produce biased estimates in multivariate models of life satisfaction life or depressive symptoms in old age.
人口老龄化的加剧导致人们对老年人生活质量的纵向研究需求不断增长。然而，这些调查的结果可能存在偏差，因为更多处于不利地位的人离开了原始样本。本研究旨在探讨在一个面板调查中观察到的选择性流失如何影响主观幸福感（SWB）的多元模型。问题是，我们是否能够对老年时期 SWB 的预测因素进行可靠的纵向研究。
本文考察了智利一个老年人小组的流失情况。在影响老年人 SWB 的变量中评估了流失情况。拟合了概率模型，以比较辍学者和非辍学者。然后，对满意度和抑郁症状进行了多元概率模型估计，比较了辍学者和非辍学者。最后，我们比较了 SWB 加权和非加权多元概率模型。
2 年内的流失率为 38.8%，包括死亡和 32.9%，不包括死亡。调查辍学者的满意度较低，但抑郁症状较高。在 SWB 预测因素中，没有伴侣且自我效能感较低的人更有可能放弃研究。当应用贝克蒂、古尔德、利拉德和韦尔奇检验时，预测变量对 SWB 结果变量的概率系数在辍学者和非辍学者中相似。最后，对加权方法的 SWB 多元模型的比较并未发现解释系数存在实质性差异。
尽管一些流失预测因素与 SWB 相关，但在老年时期的生活满意度或抑郁症状的多元模型中，流失并没有产生有偏差的估计。
