Elder Mistreatment Experienced by Older Caregiving Adults: Results from a National Community-Based Sample

BACKGROUND

With an aging population, older adults are increasingly serving as caregivers to others, which may increase their risk of adverse interpersonal experiences.

OBJECTIVE

To investigate the prevalence and types of elder mistreatment experienced by older caregiving adults.

DESIGN

Cross-sectional analysis PARTICIPANTS: National sample of community-dwelling US adults over age 60 in 2015-2016.

MAIN MEASURES

Caregiving (assisting another adult with day-to-day activities) was assessed by interviewer-administered questionnaires. Experience of elder mistreatment was assessed by participant-reported questionnaire in three domains: emotional, physical, and financial. Multivariable logistic regression models examined associations between caregiving status and each domain of elder mistreatment, adjusting for age, race, ethnicity, gender, education, marital status, concomitant care-receiving status, overall physical and mental health, and cognitive function. Additional logistic regression models examined associations between being the primary caregiver (rather than a secondary caregiver) and each domain of mistreatment among older caregivers.

KEY RESULTS

Of the 1898 participants over age 60 (including 1062 women and 836 men, 83% non-Hispanic white, and 64% married or partnered), 14% reported serving as caregivers for other adults, including 8% who considered themselves to be the primary caregiver. Among these older caregivers, 38% reported experiencing emotional, 32% financial, and 6% physical mistreatment after age 60. In multivariable models, caregiving was associated with experiencing both emotional mistreatment (AOR 1.61, 95% CI 1.15-2.25) and financial mistreatment (AOR 1.72, 95% CI 1.18-2.50). In analyses confined to caregiving older adults, those who served as primary rather than secondary caregivers for other adults had an over two-fold increased odds of emotional mistreatment (AOR 2.17, 95% CI 1.07, 4.41).

CONCLUSION

In this national cohort of older community-dwelling adults, caregiving was independently associated with experiencing emotional and financial mistreatment after age 60. Findings suggest that efforts to prevent or mitigate elder mistreatment should put more emphasis on vulnerable older caregivers.

PD-L1 and MHC Class I Expression in High-grade Ovarian Cancers, Including Platinum-resistant Recurrences Treated With Checkpoint Inhibitor Therapy

Immune-modulating therapies targeting the programmed cell death-1/programmed cell death ligand-1 (PD-L1) immunosuppressive system have been used successfully in many solid tumor types. There is evidence that biomarkers such as PD-L1 and major histocompatibility complex (MHC) class I help identify candidates for anti-programmed cell death-1/PD-L1 checkpoint inhibition, though the evidence is limited in ovarian malignancies. PD-L1 and MHC Class I immunostaining was performed on pretreatment whole tissue sections in 30 cases of high-grade ovarian carcinoma. The PD-L1 combined positive score was calculated (a score of ≥1 is considered positive). MHC class I status was categorized as an intact or subclonal loss. In patients who received immunotherapy, drug response was assessed using RECIST criteria. PD-L1 was positive in 26 of 30 cases (87%; combined positive score: 1 to 100). Seven of 30 patients showed subclonal loss of MHC class I (23%), and this occurred in both PD-L1 negative (3/4; 75%) and PD-L1 positive (4/26; 15%) cases. Only 1 of 17 patients who received immunotherapy in the setting of a platinum-resistant recurrence responded to the addition of immunotherapy, and all 17 died of disease. In the setting of recurrent disease, patients did not respond to immunotherapy regardless of PD-L1/MHC class I status, suggesting that these immunostains may not be effective predictive biomarkers in this setting. Subclonal loss of expression of MHC class I occurs in ovarian carcinoma, including in PD-L1 positive cases, suggesting that the 2 pathways of immune evasion may not be mutually exclusive and that it may be important to interrogate MHC class I status in PD-L1 positive tumors to identify additional immune evasion mechanisms in these tumors.