Prospective Disability in Different Combinations of Somatic and Mental Multimorbidity.

Multimorbidity (multiple co-occurring chronic conditions) may be an important contributor to disability and poor health-related quality of life. The functional consequences of specific combinations of somatic and mental health conditions are unclear. Nationally representative prospective cohort study using the National Health and Aging Trends Study data of Medicare beneficiaries. We included 4,017 participants aged 65 years or older interviewed in 2013 and 2014. The primary outcome was prospective activities of daily living (ADL)-instrumental ADL (IADL) index (range = 0-11) assessed in 2014. All other measures were assessed in 2013. Chronic conditions included heart disease, hypertension, stroke, diabetes, arthritis, lung disease, osteoporosis, cancer, depression, and cognitive impairment. Analyses were adjusted for age, sex, education, race/ethnicity, body mass index, and baseline ADL-IADL. Thirty-four percent of multimorbidity combinations included depression, cognitive impairment, or both. Relative to multimorbidity combinations of exclusively somatic conditions, combinations that included both depression and cognitive impairment were associated with 1.34 times greater ADL-IADL in adjusted models (95% confidence interval [CI]: 1.09, 1.64). Relative to combinations of both depression and cognitive impairment, combinations of cognitive impairment and somatic conditions were associated with 0.84 times lower ADL-IADL in adjusted models (95% CI: 0.74, 0.96); combinations of depression and somatic conditions were associated with 0.72 times lower ADL-IADL in adjusted models (95% CI: 0.62, 0.85). Depression and/or cognitive impairment was identified in one-third of older adults with multimorbidity, and these combinations were associated with substantially greater prospective disability than combinations comprised exclusively of somatic conditions. This argues for identifying and managing mental health conditions that co-occur with somatic conditions.

Quiñones AR ，Markwardt S ，Thielke S ，Rostant O ，Vásquez E ，Botoseneanu A ... -  《-》

Diabetes-Multimorbidity Combinations and Disability Among Middle-aged and Older Adults.

Quiñones AR ，Markwardt S ，Botoseneanu A 《-》

The association of multimorbidity and disability in a community-based sample of elderly aged 80 or older in Shanghai, China.

Su P ，Ding H ，Zhang W ，Duan G ，Yang Y ，Chen R ，Duan Z ，Du L ，Xie C ，Jin C ，Hu C ，Sun Z ，Long J ，Gong L ，Tian W ... -  《BMC Geriatrics》

Multimorbidity Combinations and Disability in Older Adults.

Multimorbidity (multiple co-occurring chronic diseases) is associated with greater likelihood of disability and mortality, above and beyond the risk attributable to individual diseases. This study identifies prevalent multimorbidity patterns and evaluates their association with disability among U.S. older adults. Prospective cohort study using longitudinal Health and Retirement Study data (2010-2012). We included 8,782 participants aged 65 years and older and used negative binomial models to examine prospective disability, measured by the combined activities of daily living-instrumental activities of daily living index. Multimorbidity was defined as the co-occurring combination of at least two of the following chronic diseases: hypertension, cardiovascular disease, lung disease, diabetes, cancer, arthritis, stroke, cognitive impairment, or high depressive symptoms (CES-D score ≥ 4). We found 291 unique disease combinations with 1 to 1,167 older adults per disease combination. The three most prevalent combinations were: (a) hypertension and arthritis (n = 1,167); (b) hypertension, arthritis, and cardiovascular disease (n = 510); and (c) hypertension, arthritis, and diabetes (n = 430). Only one of the prevalent combinations included depressive symptoms (in combination with arthritis, hypertension; n = 129). This group showed the highest level of activities of daily living-instrumental activities of daily living disability compared to healthy participants or participants with a single disease (either included in the combination or different from diseases in the combination) even after adjusting for age, gender, education, race/ethnicity, and body mass index. Clinicians stand to gain from a better understanding of which disease combinations are more and less disabling among older adults. Understanding how multimorbidity combinations relate to functional status is an important step towards reducing disability and sustaining independent living among older adults.

Quiñones AR ，Markwardt S ，Botoseneanu A 《-》

Multimorbidity and Functional Disability among Older Adults: The Role of Inflammation and Glycemic Status - An Observational Longitudinal Study.

Specific multimorbidity combinations, in particular those including arthritis, stroke, and cognitive impairment, have been associated with high burden of activities of daily living (ADL)-instrumental activities of daily living (IADL) disability in older adults. The biologic underpinnings of these associations are still unclear. Observational longitudinal study using data from the Health and Retirement Study (N = 8,618, mean age = 74 years, 58% female, 25% non-white) and negative binomial regression models stratified by sex to evaluate the role of inflammatory and glycemic biomarkers (high-sensitivity C-reactive protein (hs-CRP) and HbA1c) in the association between specific multimorbidity combinations (grouped around one of eight index diseases: arthritis, cancer, cognitive impairment, diabetes, heart disease, hypertension, lung disease, and stroke; assessed between 2006 and 2014) and prospective ADL-IADL disability (2 years later, 2008-2016). Results were adjusted for sociodemographic characteristics, body mass index, number of coexisting diseases, and baseline ADL-IADL score. Multimorbidity combinations indexed by arthritis (IRR = 1.1, 95% CI = 1.01-1.20), diabetes (IRR = 1.19, 95% CI = 1.09-1.30), and cognitive impairment (IRR = 1.11, 95% CI = 1.01-1.23) among men and diabetes-indexed multimorbidity combinations (IRR = 1.07, 95% CI = 1.01-1.14) among women were associated with higher ADL-IADL scores at increasing levels of HbA1c. Across higher levels of hs-CRP, multimorbidity combinations indexed by arthritis (IRR = 1.06, 95% CI = 1.02-1.11), hypertension (IRR = 1.06, 95% CI = 1.02-1.11), heart disease (IRR = 1.06, 95% CI = 1.01-1.12), and lung disease (IRR = 1.14, 95% CI = 1.07-1.23) were associated with higher ADL-IADL scores among women, while there were no significant associations among men. The findings suggest potential for anti-inflammatory management among older women and optimal glycemic control among older men with these particular multimorbidity combinations as focus for therapeutic/preventive options for maintaining functional health.

Botoseneanu A ，Markwardt S ，Quiñones AR 《-》