Non-spouse Caregivers Research Articles

Attributes of caregivers' quality of life: A perspective comparison between spousal and non-spousal caregivers of older patients with cancer

PurposeWith the aging population, our current understanding of patients with cancer and their family caregivers needs to be expanded to older patients with cancer and their caregivers. By differentiating spousal caregivers and non-spousal caregivers, we aimed to investigate the universalities and particularities of caregiving for older patients with cancer. MethodsThrough 11 cancer centers in South Korea, 358 patient-caregiver pairs were recruited in this cross-sectional study. Patients were of gastric, colorectal, or lung cancers, and caregivers were those who accompanied the patients to the clinic. Along with socio-demographic variables, medical records of the patients, and caregiving-related measurements, the caregiver's quality of life (AC-QOL) was rated both by patients and by caregivers. ResultsStatistically significant attributes of ACQOL included patient's age, caregiving duration, caregiver's concern about financial burden, caregiver's self-evaluation of their own physical health, and work conflicts due to caregiving for spousal caregivers (R2 = 0.687). For non-spousal caregivers, caregiving duration, caregiver's concern about financial burden, caregiver's self-evaluation of their own physical health, and family conflicts due to work were found significant (R2 = 0.272). Also patients rated ACQOL in higher accordance with their spousal caregivers than with non-spousal caregivers. ConclusionThe needs of spousal caregivers and non-spousal caregivers might vary, which should inform the effective and efficient channeling of support for family caregivers. Future research suggestions, along with the study limitations, are discussed.

Quality of life perceptions of family caregivers of older adults stroke survivors: A longitudinal study

BackgroundThere are few formal outreach and out-patient support services to help family caring for older adults who have had a stroke in developing countries. Family caregivers experience negative changes in their quality of life. AimTo assess quality of life perceptions of spouse and non-spouse caregivers of older adult stroke survivors. MethodsA longitudinal survey study. A convenience sample of forty-eight family caregivers was recruited from the Special Care Stroke Unit at a University Hospital in South Brazil. Quality of life was measured using the World Health Organization's Quality of Life BREF survey upon discharge from the hospital (Time 1) and two months after (Time 2). ResultsNon-spouse caregivers had the lowest Social Relationship scores at Time 1 (p < .001) and at Time 2 (p = .005), both in terms of personal relationship, the quality of their sex lives and support received from others. ConclusionUnfortunately, formal community support programs for family caregivers in Brazil are lacking. Post-stroke caregiving is largely a family affair. Quality of Life assessments among family caregivers of older adult stroke survivors are crucial, particularly after discharge.

A comparison of psychological well-being and quality of life between spouse and non-spouse caregivers in patients with head and neck cancer: a 6-month follow-up study.

ObjectiveThe caregivers of patients with head and neck cancer (HNC) may suffer from impaired psychological well-being and a decreased quality of life (QOL) related to the chronic burden of caring for patients’ physical conditions and their mood changes. In this study, we aimed to compare the psychological well-being and QOL between spouse caregivers and non-spouse caregivers of patients with HNC over a 6-month follow-up period.Patients and methodsThis study was conducted using a prospective design with consecutive sampling. We recruited study subjects from the outpatient combined treatment clinic of HNC at a medical center in Southern Taiwan. The Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, fourth edition was carried out by a trained senior psychiatrist to diagnose caregivers. Furthermore, one research assistant collected the caregivers’ demographic characteristics, clinical data, and clinical rating scales, including the Short Form 36 (SF-36) Health Survey, Hospital Anxiety and Depression Scale (HADS), and Family Appearance, Pulse, Grimace, Activity, and Respiration index at the patients’ pretreatment, as well as their 3- and 6-month follow-up appointments.ResultsOf the 143 subjects that successfully completed the study, two-thirds of caregivers were spouses. During the 6-month follow-up period, spouse caregivers demonstrated significantly higher rates of depression diagnosis (p=0.032), higher scores in the depression subscale of HADS (HADS-D) (p=0.010), and lower SF-36 mental component summary (MCS) scores (p=0.007) than non-spouse caregivers. Furthermore, during those 6 months, HADS-D (p=0.007) and the anxiety subscale of HADS scores (p<0.001) significantly decreased, while SF-36 MCS scores significantly increased (p=0.015).ConclusionThe mental health of spouse caregivers of HNC patients was more severely affected than that of non-spouse caregivers during the observed 6-month follow-up period. Therefore, clinicians need to pay more attention to caregivers’ psychological distress during patient care, especially for spouse caregivers.

Patient and Caregiver Determinants of Patient Quality of Life and Caregiver Strain in Left Ventricular Assist Device Therapy.

BackgroundAlthough current guidelines emphasize the importance of social support to the success of left ventricular assist device (LVAD) therapy, few studies examine the influence of the caregiver on patient outcomes or quantify the impact of LVAD caregiving on caregiver outcomes. The purpose of this analysis was to identify patient and caregiver determinants of patient quality of life (QOL) and caregiver strain in response to LVAD therapy.Methods and ResultsData on patients receiving LVAD therapy and their caregivers (n=50 dyads) were prospectively collected pre‐implantation and 1, 3, and 6 months post‐implantation. Growth curve modeling was used to describe change in patient QOL (Kansas City Cardiomyopathy Questionnaire) and caregiver strain (Multidimensional Caregiver Strain Index). Patient QOL improved most in the first month (β=23.22±3.76, P<0.001), followed by gradual gains over 6 months (β=1.90±0.64, P<0.01). Caregivers experienced worsening of strain in the first month (β=4.30±1.42, P<0.01), followed by gradual resolution to pre‐implantation levels by 6 months (β=−0.71±0.23, P<0.01). Worse pre‐implantation patient symptoms were associated with greater improvement in patient QOL (β=0.53±0.19, P<0.01) but worsening caregiver strain (β=0.15±0.07, P=0.04). Better relationship quality was associated with greater improvement in patient QOL (β=14.39±5.85, P=0.01) and less pre‐implantation caregiver strain (β=−9.31±2.28, P<0.001). Nonspousal caregivers experienced less pre‐implantation strain (β=−8.60±3.10, P=0.01), and patients with nonspousal caregivers had less improvement in QOL (β=−3.70±1.62, P=0.02).ConclusionsA combination of patient and caregiver characteristics predicts patient and caregiver response to LVAD therapy. Including caregiver factors in future studies may be helpful in developing interventions that improve patient and caregiver outcomes, together.

Care Configurations and Unmet Care Needs in Older Men and Women.

Older adults frequently experience adverse consequences as the result of unmet care needs, including not getting dressed and going without food when hungry. Previous studies have noted that characteristics of the caregiver network may be associated with unmet needs. Using National Health and Aging Trends Study data, I modeled the association between care configurations and unmet needs for men and women. In generalized linear models, formal care was not associated with unmet need among women or men. Compared with recipients of spousal care, men receiving care from one nonspousal caregiver, and men and women receiving care from any other configuration, had higher odds of unmet needs. The level of difficulty with daily tasks was strongly associated with unmet needs. These findings support monitoring older adults not receiving spousal care, increasing access to formal care, and regularly assessing level of difficulty with daily tasks in clinical and research settings.

Hematopoietic Stem Cell Transplantation Recipient and Caregiver Factors Affecting Length of Stay and Readmission.

To evaluate the contributions of patient and caregiver factors to length of stay (LOS) and 30-day readmission status for recipients of allogeneic hematopoietic stem cell transplantation (HSCT). . Secondary data analysis from a phase 2 clinical trial. . National Institutes of Health Clinical Center in Bethesda, Maryland. . 68 dyads (N = 136) comprised of patients receiving HSCT and their caregivers. . Multiple linear regression and logistic regression analyses were used to investigate associations between caregiver and patient factors and outcomes. . Patients' initial LOS, 30-day readmission, and demographic and disease characteristics; caregiver demographic factors, health problems, psychological distress, burden, and self-efficacy. . Twenty-five patients were readmitted within 30 days after hospital discharge following their initial hospitalization for HSCT. LOS was 34% longer for patients with infection than patients without infection. Patients with grade 2 or greater acute graft-versus-host disease (GVHD) stayed longer compared to patients with no or mild acute GVHD. Patients who had nonspousal caregivers stayed longer than patients with spousal caregivers. Infection was significantly related to readmission. . Knowledge regarding factors associated with increased LOS and 30-day readmission can help nurses and transplantation team members anticipate the healthcare needs of patients receiving HSCT, improve outcomes, and decrease the use of expensive health services. . Educating patients and caregivers on infection prevention is critically important to reduce LOS and 30-day readmission after HSCT.

Assessing Grief of Family Caregivers of People with Dementia: Validation of the Chinese Version of the Marwit-Meuser Caregiver Grief Inventory.

Grief in dementia caregiving is underexplored in research studies in the Chinese context, yet social workers often work with caregivers of people with dementia (PWD) and who experience grief. Having a valid assessment tool can help social workers better identify the grief of caregivers and facilitate caregivers' articulation of grief. This article describes a study aimed to validate the Marwit-Meuser Caregiver Grief Inventory-Short Form (C-MM-CGI-SF) among Hong Kong Chinese caregivers of PWD. One hundred and twenty caregivers participated in this study. They were recruited from day care centers and a memory clinic. The short version of MM-CGI was translated into Chinese, and participants were asked to complete a questionnaire that included this scale and other scales validating it. Reliability and validity were examined. C-MM-CGI-SF was found to be a reliable and valid measure in the Hong Kong context. Its construct validity was demonstrated by the positive correlations with caregiving strain and depression, and negative correlations with presence of meaning and life satisfaction. The discriminant validity was supported by showing that spousal caregivers' grief level was significantly higher than that of nonspousal caregivers. Authors recommend social workers using the C-MM-CGI-SF to assess the grief of Chinese caregivers caring for people suffering from dementia.

Abstract TMP40: Sociodemographic Predictors of Return to Home after Inpatient Stroke Rehabilitation

Background: Interpersonal relationships are understudied components of the stroke treatment paradigm, which become important when patients require long-term care. In this study, we analyzed sociodemographic factors that impact return to home after inpatient rehabilitation (IR). Methods: Stroke patients were identified by ICD9/10 code from a prospective multicenter rehabilitation registry between Jan 2005 &amp; July 2016 (n=6447). Patients were analyzed based upon "Home" vs "Not Home" or "Married" vs "Not Married" groups. Descriptive statistics were provided for all patients. Marital status was used as a proxy for caregiver support. We hypothesized that increased discharge functional independence measure (FIM), ambulation and no insurance predicted return to home. A “return home model” was developed using multivariable regression with a stepwise approach. Odds ratio &amp; 95% CI were calculated. Results: 5378 patients returned Home, 1069 did not return Home. Home patients tended to be younger, married, ambulatory and minorities, with a discharge FIM&gt;75 (p&lt;0.0001). Aphasia, dysphagia and UTI were significantly higher in the “Not Home” group (p&lt;0.0001). Married patients had more stroke risk factors and impairments, indicating increased caregiver needs (Figure). In the model, being a minority and being a woman increased the odds of returning home. Advancing age, being widowed, divorced, separated or never married decreased the odds of returning home. We confirmed that ambulation, increasing discharge FIM and no insurance predicted return to home (Figure). Conclusions: Being married, a woman or a minority increases the odds of returning home after inpatient rehabilitation. Caregiver training and social support for unmarried and male patients are important areas of improvement. Strategies to ensure the successful transition of stroke rehabilitation patients to home are needed, including prospective studies of non-spousal caregiver support.

Anosognosia increases caregiver burden in mild cognitive impairment.

Our aim is to determine the clinical correlates of impaired insight in patients with mild cognitive impairment (MCI) by examining its impact on cognition, functional status, neuropsychiatric symptoms, and caregiver burden. The study involved 75 patients with MCI and their caregivers. Patients and caregivers underwent a comprehensive evaluation including the Clinical Dementia Rating, memory tests, and the Functional Assessment Questionnaire. Behavioral symptoms were assessed by the Neuropsychiatric Inventory, caregiver burden by the Zarit Burden Inventory, and insight by comparing self-report on the AD8 dementia screening tool to informant collateral. Patients were asked about their perceptions of their memory, and answers were compared with informants' responses. Patient mood was assessed with the Hospital Anxiety Depression Scale. There was a significant difference in AD8 scores among patients who retained versus lacked insight. Zarit Burden Inventory scores showed a significant rise as patient insight declined; the burden appeared greater on spouse versus non-spouse caregivers. Patients with poor insight had significantly worse ratings in Clinical Dementia Rating domains of personal care and judgment, while patients who retained insight had significantly higher depression and anxiety. Insight impairment was associated with worse caregiver mood. Decreased patient awareness for cognitive problems was significantly associated with higher caregiver burden, independent of neuropsychiatric symptoms, functional abilities, and cognition. Personal care, judgment, and problem-solving skills could contribute to caregiver burden. Increased awareness seemed a source of patient depression and anxiety. The research highlights the need to focus on the needs of MCI caregivers and to incorporate psychosocial assessments of caregiver-patient dyads into office visits.

Depressed Spousal Caregivers Have Psychological Stress Unrelated to the Progression of Alzheimer Disease: A 3-Year Follow-Up Report, Kuopio ALSOVA Study.

To explore family caregiver (FC) long-term psychological distress after Alzheimer disease (AD) diagnosis in a family member. FC (n = 236) and patients with AD were prospectively followed up to 36 months after AD diagnosis. FC psychological distress was evaluated using the General Health Questionnaire (GHQ). Furthermore, caregiver depressive symptoms and sense of coherence, along with AD patient measurements, were measured at baseline and annually. Generalized estimating equation models were applied to study associations of these baseline factors to caregiver GHQ. After 36 months of follow-up, spousal caregivers (SCs) GHQ was significantly higher (P < .001) than in the nonspousal caregivers (NSCs). The difference in GHQ scores was associated by depressive symptoms (P < .001) at baseline, and the depressed SCs have more severe distress than NSCs over the observation period. During longitudinal caregiving, spousal and depressed caregivers of patients with AD report higher and increasing psychological stress than nonspousal and nondepressed caregivers. Spousal relationship, caregivers' depressive symptoms, and the severity of patients' neuropsychological symptoms at the time of AD diagnosis predict the trajectory of psychological distress. The current study highlights the need for evaluating AD caregiver mental health and level of coping.

Common mental disorders among adult members of 'left-behind' international migrant worker families in Sri Lanka.

BackgroundNearly one-in-ten Sri Lankans are employed abroad as International migrant workers (IMW). Very little is known about the mental health of adult members in families left-behind. This study aimed to explore the impact of economic migration on mental health (common mental disorders) of left-behind families in Sri Lanka.MethodsA cross-sectional survey using multistage sampling was conducted in six districts (representing 62% of outbound IMW population) of Sri Lanka. Spouses and non-spouse caregivers (those providing substantial care for children) from families of economic migrants were recruited. Adult mental health was measured using the Patient Health Questionnaire. Demographic, socio-economic, migration-specific and health utilization information were gathered.ResultsA total of 410 IMW families were recruited (response rate: 95.1%). Both spouse and a non-spouse caregiver were recruited for 55 families with a total of 277 spouses and 188 caregivers included. Poor general health, current diagnosed illness and healthcare visit frequency was higher in the non-spouse caregiver group. Overall prevalence of common mental disorder (CMD; Depression, somatoform disorder, anxiety) was 20.7% (95%CI 16.9-24.3) with 14.4% (95%CI 10.3-18.6) among spouses and 29.8% (95%CI 23.2-36.4) among non-spouse caregivers. Prevalence of depression (25.5%; 95%CI 19.2-31.8) and somatoform disorder 11.7% (95%CI 7.0-16.3) was higher in non-spouse caregiver group. When adjusted for age and gender, non-returning IMW in family, primary education and low in-bound remittance frequency was associated with CMD for spouses while no education, poor general health and increased healthcare visits was significantly associated in the non-spouse caregiver group.ConclusionsTo our knowledge, this is one of the first studies to explore specific mental health outcomes among adult left-behind family members of IMW through standardized diagnostic instruments in Sri Lanka and in South Asian region. Negative impact of economic migration is highlighted by the considerably high prevalence of CMD among adults in left-behind families. A policy framework that enables health protection whilst promoting migration for development remains a key challenge for labour-sending nations.

Why are spousal caregivers more prevalent than nonspousal caregivers as study partners in AD dementia clinical trials?

Most Alzheimer disease (AD) caregivers are not spouses and yet most AD dementia trials enroll spousal study partners. This study examines the association between caregiver relationship to the patient and willingness to enroll in an AD clinical trial and how caregiver burden and research attitudes modify willingness. Interviews with 103 AD caregivers who met criteria for ability to serve as a study partner. A total of 54% of caregivers were spouses or domestic partners and the remaining were adult children. Willingness to enroll a patient in a clinical trial was associated with being a spouse [odds ratio (OR)=2.53, P=0.01], increasing age (OR=1.39, P=0.01), and increasing scores on the Research Attitudes Questionnaire (OR=1.39, P<0.001). No measures of caregiver burden or patient health were significant predictors of willingness. In multivariate models both research attitudes (OR=1.37, P<0.001) and being a spouse, as opposed to an adult child, (OR=2.06, P=0.048) were independently associated with willingness to participate. Spousal caregivers had both a higher willingness to participate and a more positive attitude toward research. Caregiver burden had no association with willingness to participate. The strongest predictor of willingness was research attitudes.

Green Care Farms: An Innovative Type of Adult Day Service to Stimulate Social Participation of People With Dementia.

Objective: To explore the value of day services at green care farms (GCFs) in terms of social participation for people with dementia. Method: Semi-structured interviews were conducted with people with dementia who attended day services at a GCF (GCF group, n = 21), were on a waiting list (WL) for day services at a GCF (WL group, n = 12), or attended day services in a regular day care facility (RDCF group, n = 17) and with their family caregivers. Results: People with dementia in the GCF and WL group were primarily males, with an average age of 71 and 76 years, respectively, who almost all had a spousal caregiver. People with dementia in the RDCF group were mostly females with an average age of 85 years, most of whom had a non-spousal caregiver. For both the GCF and RDCF groups, it was indicated that day services made people with dementia feel part of society. The most important domains of social participation addressed by RDCFs were social interactions and recreational activities. GCFs additionally addressed the domains “paid employment” and “volunteer work.” Conclusion: GCFs are valuable in terms of social participation for a particular group of people with dementia. Matching characteristics of adult day services (ADS) centers to the preferences and capacities of people with dementia is of importance. Diversity in ADS centers is therefore desirable.

Spousal caregiving and financial strain among middle-aged and older adults.

We examine whether spousal caregivers face difficulties in meeting their basic household expenses compared to nonspousal caregivers and whether social support mechanisms ameliorate any financial strain from caregiving responsibilities. We use data for caregivers aged 45 and over drawn from a nationally representative, cross-sectional Canadian Community Health Survey--Healthy Aging (N = 5,067). Spousal caregiving is associated with a 35% increase in the likelihood of experiencing difficulties in meeting basic expenses compared to other types of caregiving. Each of social support mechanisms (affectionate, emotional/informational, and positive social interaction), singularly and combined, lessens financial strain from caregiving. Our findings suggest that spousal caregivers are particularly vulnerable because they have fewer resources to draw on for support and perform much more intensive care. Our results highlight the importance of developing appropriate policies and programs to support caregivers.

Quality of life and satisfaction with care among family caregivers of patients with recurrent or metastasized digestive cancer requiring palliative care

Satisfaction with care is thought to be important for quality of life (QOL) of family caregivers of patients with recurrent or metastasized digestive cancer requiring palliative care. This study aimed to clarify (1) family caregivers' QOL status and (2) factors related to their QOL, including satisfaction with care. Data were collected from 111 family caregivers of patients with recurrent or metastasized digestive cancer. The Short-Form 36 (SF-36) (acute version) was used to measure QOL. Family caregivers' QOL was lower than the national average (Cohen's d = 0.12-0.66). Lower age of patients and family caregivers (standardized regression coefficient (β) = -0.18, β = -0.26) and family caregivers' perceived health (β = 0.22) were related to better physical health of family caregivers, but satisfaction with care was not related to physical health. However, family caregivers' mental health was related to their satisfaction with care (Spearman's rank correlation coefficient (r) = 0.49-0.61, standardized regression coefficient (β) = 0.24-0.42), as well as higher age of family caregivers (β = 0.25), their perceived health (β = 0.30), non-spousal caregiver (β = -0.20), patient lacking a history of surgery aimed at radical treatment (β = -0.22), and patient not hospitalized solely for symptom relief (β = -0.10). Family caregivers of patients with recurrent or metastasized digestive cancer requiring palliative care had lower QOL, both physically and mentally, than the national average. Improvements in satisfaction with care may contribute to improved QOL.

Validation of the Chinese Version of the Modified Caregivers Strain Index among Hong Kong Caregivers: An Initiative of Medical Social Workers

Family caregivers may often experience caregiving stress and burden. To systematically assess this issue, medical social workers may need to use a brief and valid measurement in their practice. In the Hong Kong Chinese context, one additional challenge is to examine whether a measurement developed in the West is valid for Hong Kong Chinese caregivers. Thus, medical social workers in Hong Kong initiated this research study to validate the Chinese version of the Modified Caregiver Strain Index (C-M-CSI). A total of 223 Chinese caregivers of patients with various chronic illnesses were recruited for this validation study. C-M-CSI demonstrated good reliability (Cronbach's alpha coefficient = .91), concurrent validity with the Chinese version of the Caregiver Burden Inventory, and discriminant validity with the Chinese version of the Meaning in Life Questionnaire. Factor analysis yielded a single factor as the original M-CSI, which explained 49 percent of variance. Construct validity was shown by differentiating spousal and nonspousal caregivers, as well as caregivers of patients with and without behavioral problems. C-M-CSI is recommended as a brief and valid measurement that can be used by medical social workers in assessing the caregiving strain of Chinese caregivers of patients in Hong Kong.

Finding Benefit in Bereavement among Family Cancer Caregivers

Even though cancer is the second most common cause of death, little is known about the extent to which family caregivers find meaning and benefit in the loss, and associated demographic characteristics and caregiving experiences. This study addressed this gap in our knowledge. Family caregivers participated in a nationwide survey for cancer caregivers two years after the relative's diagnosis (T1). Of those, 121 were identified as bereaved by five years postdiagnosis (T2) and provided valid data for the study variables. Participants were primarily middle-aged, spouse of the deceased, and bereaved for an average of 2.9 years. Perceived caregiving stress, caregiver esteem, and patient's cancer severity as indicators of initial caregiving stressors and caregivers' demographics were measured at T1. Social support and time since bereavement as indicators of current resources and benefit finding in bereavement as an outcome were measured at T2. Reports of personal growth from bereavement emerged in multiple domains, although some caregivers were less likely to find benefit: nonspousal caregivers who had greater caregiving stress and spousal caregivers with lack of social support. Findings suggest that bereavement programs designed to help bereaved caregivers find meaning in the loss should be personalized reflecting individual differences in caregiving stress and caregiver esteem. Such programs should also be tailored differently for spousal versus nonspousal caregivers.

Spouse caregivers and behavioral and psychological symptoms of dementia

Background: Only a few studies have specifically considered the role of caregiver characteristics in the presence of behavioral and psychological symptoms of dementia (BPSD). The aim of this study was to determine whether there were differences in the presence of individual BPSD between community-dwelling dementia care recipients with spouse caregivers and those with non-spouse caregivers.Methods: Care recipients (n = 109) and their primary caregivers were recruited from memory clinic outpatients at the public psychiatric hospital in Sapporo City, Japan. Data were collected by questionnaire. Relationship with the care recipient was categorized as either ‘spouse’ or ‘non-spouse.’ The frequency of BPSD occurrence observed by the caregiver was assessed using the Troublesome Behavior Scale (TBS). Logistic regression analyses were performed to examine whether there were differences with regard to each of the 14 TBS items between spouse and non-spouse caregivers.Results: The number of spouse caregivers was 47 (43.1%). TBS items presented by >50% care recipients were ‘repetition and/or clinging’ and ‘ill-natured denial and/or distortion.’ After adjustment for the characteristics of caregivers and care recipients, non-spouse caregivers were found to be significantly associated with the presence of ‘hiding and/or losing things,’ ‘rummaging,’ ‘crying and/or screaming,’ and ‘interfering with a happy home circle,’ compared with spouse caregivers.Conclusions: Our results suggest that non-spouse caregivers need more support with regard to certain symptoms of individual BPSD compared with spouse caregivers. Identifying caregiver characteristics that are independently associated with each individual BPSD may help customize interventions for caregivers with specific characteristics.

Journal Digest

Journal Digest

Effect of study partner on the conduct of Alzheimer disease clinical trials

Alzheimer disease (AD) dementia clinical trials require 2 participants: a patient and a study partner. We assessed the prevalence of study partner types and how these types associate with patient-related outcome measures. Retrospective analyses of 6 Alzheimer's disease cooperative study (ADCS) randomized clinical trials were conducted. Study partners were categorized as spouse, adult child, or other. Prevalence of study partner type and associations between study partner type and trial outcomes including study completion and placebo decline on the mini-mental state examination, the Alzheimer's disease assessment scale-cognitive subscale, the clinical dementia rating scale sum of the boxes score, and the ADCS-activities of daily living were examined. More participants (67%) enrolled with spouses than adult children (26%) or other study partners (7%). Participants with spouse partners had a lower dropout rate (25%) than those with adult child (32%) or other study partners (34%); only the difference vs. others was statistically significant. Participants with adult child and other partners randomized to placebo performed worse at baseline than those with spouse partners on the ADCS-activities of daily living (p = 0.04), but were not different at 18 months. There were no differences at baseline for the mini-mental state examination, clinical dementia rating scale sum of the boxes score, or Alzheimer's disease assessment scale-cognitive subscale. In multivariate models of the rates of change over time among placebo participants, no differences among study partner groups reached statistical significance. Patients with nonspouse caregivers less frequently participate in AD dementia trials. Increased enrollment of AD patients with nonspouse caregivers may require additional recruitment and retention strategies.