Polypharmacy and Health-Related Quality of Life Among US Adults With Arthritis, Medical Expenditure Panel Survey, 2010-2012

INTRODUCTION

Our objective was to determine the relationship between polypharmacy (treatment with prescription drugs from 6 or more drug classes concurrently) and health-related quality of life (HRQoL) among US adults with arthritis.

METHODS

We conducted a retrospective cohort study that used 2-year longitudinal data from the Medical Expenditure Panel Survey to analyze a cohort of 6,132 adults aged over 21 years with arthritis. Measures of HRQoL were the summary scores from the mental component summary (MCS) and physical component summary (PCS) of the 12-item short-form health survey. Unadjusted and adjusted regression models were used to evaluate the association between polypharmacy and HRQoL measures. We used SAS, version 9.4, (SAS Institute Inc) to conduct all analyses.

RESULTS

In unadjusted analyses, adults with arthritis taking prescription drugs from 6 or more drug classes concurrently had significantly lower MCS and PCS scores (β, -3.11, P < .001 and β, -10.26, P < .001, respectively) than adults taking prescription drugs from fewer than 6. After controlling for the demographic characteristics, number of mental and physical chronic conditions, and baseline MCS and PCS scores, adults taking prescription drugs from 6 or more drug classes concurrently had significantly lower PCS scores (β, -1.68, P < .001), than those taking prescription drugs from fewer than 6. However, no significant difference in MCS scores was found between adults taking prescription drugs from 6 or more drug classes concurrently and those taking prescription drugs from fewer than 6 (β, -0.27, P = .46).

CONCLUSION

Polypharmacy is significantly associated with lower PCS scores among adults with arthritis. Because polypharmacy can lead to drug-drug and drug-disease interactions, health care providers need to consider the risk and adopt a cautious approach in prescribing multiple drugs to manage chronic conditions and in choosing therapies to improve HRQoL among adults with arthritis.

Health Care Needs and Services Delivery for Older Persons with HIV/AIDS

This article brings together information on age differences in HIV health care needsand use patterns to shed light on distinctive aspects of health services needs and useby older individuals with HIV. Age differences in social and economic characteristics,medical comorbidity, psychiatric comorbidity, survival, access to medical care, andpatterns in use of inpatient services are examined. Existing literature suggests thatdelayed diagnosis, biologically based differences in progression of HIV disease, andcomorbid health conditions unrelated to HIV all may contribute to the shorter timefrom diagnosis to death among patients. Event history analyses of the hazard andduration of hospitalization among individuals with AIDS in the New Jersey Medicaidprogram indicated that those age 50 and older were hospitalized somewhat less oftenbut for longer stays, suggesting that there may be opportunities to substitute care athome for some care provided in the hospital to older people with HIV.

Gender Differences in Out-of-Pocket Prescription Drug Expenditures Among the Elderly

Many elderly in the United States face high out-of-pocket prescription drug (OOP-PD) expenditures, with elderly women being disproportionably affected. Using Medicare Current Beneficiary Survey data for 1992 to 2000, the authors examined the gender differences in OOP-PD expenditures and burden among community-dwelling elderly Medicare beneficiaries. Oaxaca-Blinder decomposition techniques were used to evaluate the contribution of observed demographic, socioeconomic, and utilization factors on the gender gap in OOP-PD expenditures and burden. Among observed characteristics, differences in utilization and supplemental insurance coverage were the major drivers of the gender gap in OOP-PD expenditures and burden. Unobservable factors contributed to the majority of the gender gap in OOP-PD expenditures.

Comparison of the Initial Loco-Regional Treatment Received for Early-Stage Breast Cancer between Elderly Women in Appalachia and a United States - Based Population: Good and Bad News

BACKGROUND

Breast conserving surgery (BCS) followed by radiation therapy (RT) (BCS+RT) is as effective for long-term survival of invasive early-stage breast cancer (ESBC) as mastectomy, and is the local treatment option selected by the majority of women with ESBC. Women of older age and vulnerable socio-demographic characteristics are at greater risk for receiving substandard (BCS only) and non-preferred treatments (mastectomy), such as populations of women from the Appalachian region of United States.

METHODS

Using a retrospective cohort study design, we identified 26,106 patients from the Surveillance, Epidemiology, and End Results (SEER)-Medicare linked dataset and 811 patients from the West Virginia Cancer Registry (WVCR)-Medicare dataset age ≥ 66 diagnosed from 2003 to 2006 with stage I-II breast cancer. Multivariable logistic regression models estimated type of initial treatment received between WVCR-Medicare and SEER-Medicare patients, and the association with type of treatment.

RESULTS

Overall, women in WV were 0.82 (95% CI 0.68-0.99) and 0.70 (95% CI 0.58-0.84) times less likely to have mastectomy or BCS only vs. BCS+RT, than those in SEER regions. Women in WV of increasing age, greater comorbidity, stage II disease, and non-white race were more likely to have mastectomy or BCS only vs. BCS+RT, whereas, those residing in areas of higher income, higher education, and metro status were less likely, than similarly characterized women from SEER regions.

CONCLUSIONS

Findings from this study suggest that the magnitude of disparities in breast cancer treatment between groups of women with more and less resources are even greater in the Appalachian region, than they are among US populations. Improving access to oncology treatment services, as well as, the implementation of patient navigation programs are needed to improve patterns of initial treatment for ESBC among at-risk populations.

Depression treatment decreases healthcare expenditures among working age patients with comorbid conditions and type 2 diabetes mellitus along with newly-diagnosed depression

BACKGROUND

There are many studies in the literature on the association between depression treatment and health expenditures. However, there is a knowledge gap in examining this relationship taking into account coexisting chronic conditions among patients with diabetes. We aim to analyze the association between depression treatment and healthcare expenditures among adults with Type 2 Diabetes Mellitus (T2DM) and newly-diagnosed depression, with consideration of coexisting chronic physical conditions.

METHODS

We used multi-state Medicaid data (2000-2008) and adopted a retrospective longitudinal cohort design. Medical conditions were identified using diagnosis codes (ICD-9-CM and CPT systems). Healthcare expenditures were aggregated for each month for 12 months. Types of coexisting chronic physical conditions were hierarchically grouped into: dominant, concordant, discordant, and both concordant and discordant. Depression treatment categories were as follows: antidepressants or psychotherapy, both antidepressants and psychotherapy, and no treatment. We used linear mixed-effects models on log-transformed expenditures (total and T2DM-related) to examine the relationship between depression treatment and health expenditures. The analyses were conducted on the overall study population and also on subgroups that had coexisting chronic physical conditions.

RESULTS

Total healthcare expenditures were reduced by treatment with antidepressants (16 % reduction), psychotherapy (22 %), and both therapy types in combination (28 %) compared to no depression treatment. Treatment with both antidepressants and psychotherapy was associated with reductions in total healthcare expenditures among all groups that had a coexisting chronic physical condition.

CONCLUSIONS

Among adults with T2DM and chronic conditions, treatment with both antidepressants and psychotherapy may result in economic benefits.

Treatment and Survival of Medicare Beneficiaries with Colorectal Cancer: A Comparative Analysis Between a Rural State Cancer Registry and National Data

The aim was to examine and compare with "national" estimates, receipt of colorectal cancer (CRC) treatment in the initial phase of care and survival following a CRC diagnosis in rural Medicare beneficiaries. A retrospective study was conducted on fee-for-service Medicare beneficiaries diagnosed with CRC in 2003-2006, identified from West Virginia Cancer Registry (WVCR)-Medicare linked database (N = 2119). A comparative cohort was identified from Surveillance, Epidemiology, and End Results (SEER)-Medicare (N = 38,168). CRC treatment received was ascertained from beneficiaries' Medicare claims in the 12 months post CRC diagnosis or until death, whichever happened first. Receipt of minimally appropriate CRC treatment (MACT) was defined using recommended CRC treatment guidelines. All-cause and CRC-specific mortality in the 36-month period post CRC diagnosis were examined. Differences in usage of CRC surgery, chemotherapy, and radiation were observed between the 2 populations, with those from WVCR-Medicare being less likely to receive any type of CRC surgery (adjusted odds ratio [AOR] = 0.82; 95% confidence interval [CI] = [0.73-0.93]). Overall, those from WVCR-Medicare had a lower likelihood of receiving MACT, (AOR = 0.85; 95% CI = [0.76-0.96]) compared to their national counterparts. Higher hazard of CRC mortality was observed in the WVCR-Medicare cohort (adjusted hazard ratio = 1.26; 95% CI = [1.20-1.32]) compared to the SEER-Medicare cohort. Although more beneficiaries from WVCR-Medicare were diagnosed in early-stage CRC compared to their SEER-Medicare counterparts, they had a lower likelihood of receiving MACT and a higher hazard of CRC mortality. This study highlights the need for an increased focus on improving access to care at every phase of the CRC care continuum, especially for those from rural settings.

Types of chronic conditions combinations and initial cancer treatment among elderly Medicare beneficiaries with localised prostate cancer

OBJECTIVE

To examine the association between types of chronic conditions combinations and initial cancer treatment among elderly Medicare beneficiaries with localised prostate cancer.

METHODS

A population-based retrospective cohort study was conducted using the Surveillance, Epidemiology and End Results (SEER)-Medicare linked database. The study cohort consisted of elderly men (≥ 66 years) with localised prostate cancer diagnosed between 2002 and 2009 (N = 98,264). The initial cancer treatment received during the 6 months after cancer diagnosis consisted of (i) radical prostatectomy (RP); (ii) radiation therapy (RT); (iii) hormone therapy; and (iv) no treatment. Pre-existing chronic conditions were classified into the following eight groups: (i) only cardiometabolic conditions (CM); (ii) only mental health conditions (MH); (iii) only respiratory conditions (RESP); (iv) CM and MH; (v) CM and RESP; (vi) MH and RESP; (vii) all three conditions, CM, MH and RESP; and (viii) none of the three types of conditions.

RESULTS

Only 20% did not receive any cancer treatment; 47.4%, 22.1% and 10.5% received RT, RP, and hormone therapy, respectively. In multinomial logistic regression, elderly men with only RESP were more likely to receive RP as compared with those with all the three types of chronic conditions; those with only CM, only RESP, CM and MH or CM and RESP were more likely to receive RT. No significant associations were observed between the receipt of hormone therapy and types of chronic conditions.

CONCLUSIONS

A significant proportion of elderly men with chronic conditions have received aggressive initial cancer treatment. Our study findings suggest a conservative approach for the initial prostate cancer treatment among elderly men with significant chronic conditions and localised prostate cancer.

Ambulatory Care Sensitive Hospitalizations among Medicaid Beneficiaries with Chronic Conditions

OBJECTIVES

This study examined the relationship between ambulatory care sensitive hospitalizations (ACSH) and patient-level and county-level variables.

METHODS

Utilizing a retrospective cohort approach, multi-state Medicaid claims data from 2007-2008 was used to examine ACSH at baseline and follow-up periods. The study cohort consisted of adult, non-elderly Medicaid beneficiaries with chronic physical conditions, who were continuously enrolled in fee-for-service programs, not enrolled in Medicare, and did not die during the study period (N=7,021). The dependent variable, ACSH, was calculated in the follow-up year using an algorithm from the Agency for Healthcare Research and Quality algorithm. Patient-level (demographic, health status, continuity of care) and county-level (density of healthcare providers and facilities, socio-economic characteristics, local economic conditions) factors were included as independent variables. Multivariable logistic regression models were used to examine the relationship between ACSH and independent variables.

RESULTS

In this study population, 8.2% had an ACSH. African-Americans were more likely to have an ACSH [AOR=1.55, 95% CI 1.16, 2.07] than Caucasians. Adults with schizophrenia were more likely to have an ACSH, compared to those without schizophrenia [AOR=1.54, 95% CI 1.16, 2.04]. Residents in counties with a higher number of community mental health centers [AOR=0.88, 95% CI 0.80, 0.97] and rural health centers [AOR=0.98, 95% CI 0.95, 0.99] were less likely to have an ASCH.

CONCLUSIONS

Programs and interventions designed to reduce the risk of ACSH may be needed to target specific population subgroups and improve healthcare infrastructure.

Preventive dental care in older adults with diabetes

BACKGROUND

The association between poor oral health and diabetes is well documented. Preventive oral health care is, therefore, strongly indicated for people with diabetes. The authors conducted a study to determine if there was a difference in preventive dental care use among older adults with diabetes in 2002 and in 2011 and to compare preventive dental care use by older adults with and without diabetes in 2002 and in 2011.

METHODS

The authors used a data sample of participants from the Medicare Current Beneficiary Survey that included older (65 years and older) fee-for-service Medicare beneficiaries. The key outcome was self-reported preventive dental care. In 2002, there were 8,725 participants; in 2011, there were 7,425 participants. The authors conducted χ(2) and logistic regression analyses.

RESULTS

In 2002, 28.8% of participants with diabetes had preventive dental care. In 2011, this percentage increased to 36.0%. Similar results were seen among participants without diabetes (42.9% in 2002 and 45.5% in 2011). The increase in preventive dental care was statistically significant for participants with and without diabetes. The participants with diabetes, as compared with participants without diabetes, remained statistically less likely to have had preventive dental care in adjusted logistic regression analysis with and without considering the interaction between observation year and diabetes (adjusted odds ratios, 0.73 and 0.86, respectively).

CONCLUSIONS

Although the percentage increase in participants with diabetes receiving preventive dental care is welcomed, older adults with diabetes continue to have substantial preventive dental care needs.

PRACTICAL IMPLICATIONS

Additional efforts are needed to encourage people with diabetes to obtain preventive dental care.

Multiple chronic conditions and healthcare costs among adults

The prevalence of multiple chronic conditions (MCC) is increasing among individuals of all ages. MCC are associated with poor health outcomes. The presence of MCC has profound healthcare utilization and cost implications for public and private insurance payers, individuals, and families. Investigators have used a variety of definitions for MCC to evaluate costs associated with MCC. The objective of this article is to examine the current literature in estimating excess costs associated with MCC among adults. The discussion highlights some of the theoretical and technical merits of various MCC definitions and models used to estimate the excess costs associated with MCC.

Factors Associated With Emergency Department Visits: A Multistate Analysis of Adult Fee-for-Service Medicaid Beneficiaries

Objective:

The objective of this study was to examine the association of patient- and county-level factors with the emergency department (ED) visits among adult fee-for-service (FFS) Medicaid beneficiaries residing in Maryland, Ohio, and West Virginia.

Methods:

A cross-sectional design using retrospective observational data was implemented. Patient-level data were obtained from 2010 Medicaid Analytic eXtract files. Information on county-level health-care resources was obtained from the Area Health Resource file and County Health Rankings file.

Results:

In adjusted analyses, the following patient-level factors were associated with higher number of ED visits: African Americans (incidence rate ratios [IRR] = 1.47), Hispanics (IRR = 1.63), polypharmacy (IRR = 1.89), and tobacco use (IRR = 2.23). Patients with complex chronic illness had a higher number of ED visits (IRR = 3.33). The county-level factors associated with ED visits were unemployment rate (IRR = 0.94) and number of urgent care clinics (IRR = 0.96).

Conclusion:

Patients with complex healthcare needs had a higher number of ED visits as compared to those without complex healthcare needs. The study results provide important baseline context for future policy analysis studies around Medicaid expansion options.

Hospital length of stay and all-cause 30-day readmissions among high-risk Medicaid beneficiaries

This study examined the association between index hospitalization characteristics and the risk of all-cause 30-day readmission among high-risk Medicaid beneficiaries using multilevel analyses. A retrospective cohort with a baseline and a follow-up period was used. The study population consisted of Medicaid beneficiaries (21-64 years old) with selected chronic conditions, continuous fee-for-service enrollment through the observation period, and at least 1 inpatient encounter during the follow-up period (N = 15,806). The outcome of 30-day readmission was measured using inpatient admissions within 30-days from the discharge date of the first observed hospitalization. Key independent variables included length of stay, reason for admission, and month of index hospitalization (seasonality). Multilevel logistic regression that accounted for beneficiaries nested within counties was used to examine this association, after controlling for patient-level and county-level characteristics. In this study population, 16.7% had all-cause 30-day readmissions. Adults with greater lengths of stay during the index hospitalization were more likely to have 30-day readmissions (adjusted odds ratio [AOR]: 1.03, 95% confidence interval [CI]: 1.02-1.04). Adults who were hospitalized for cardiovascular conditions (AOR: 1.20, 95% CI: 1.08-1.33), diabetes (AOR: 1.23, 95% CI: 1.10-1.39), cancer (AOR: 1.55, 95% CI: 1.26-1.90), and mental health conditions (AOR: 2.17, 95% CI: 1.98-2.38) were more likely to have 30-day readmissions compared to those without these conditions.

Association between Types of Chronic Conditions and Cancer Stage at Diagnosis among Elderly Medicare Beneficiaries with Prostate Cancer

The current retrospective observational study was conducted to examine the association between types of chronic conditions and cancer stage at diagnosis among elderly Medicare beneficiaries with prostate cancer using the Surveillance, Epidemiology, and End Results (SEER)-Medicare linked database. The study cohort consisted of elderly men (≥66 years) with prostate cancer diagnosed between 2002 and 2009 (N = 103,820). Cancer stage at diagnosis (localized versus advanced) was derived using the American Joint Committee on Cancer classification. Chronic conditions were identified during the year before cancer diagnosis and classified as: (1) only cardiometabolic (CM); (2) only mental health (MH); (3) only respiratory (RESP); (4) CM + MH; (5) CM + RESP; (6) MH + RESP; (7) CM+ MH + RESP; and (8) none of the 3 types of conditions. Chi-square tests and multivariable logistic regressions were used to test the unadjusted and adjusted associations between types of chronic conditions and cancer stage at diagnosis. The highest percentage (5.8%) of advanced prostate cancer was observed among elderly men with none of the 3 types of chronic conditions (CM, RESP, MH). In the adjusted logistic regression, those with none of the 3 types of chronic conditions were 44% more likely to be diagnosed with advanced prostate cancer compared to men with all the 3 types of chronic conditions. Elderly men without any of the selected chronic conditions were more likely to be diagnosed with advanced prostate cancer; therefore, strategies to reduce the risk of advanced prostate cancer should be targeted toward elderly men without these conditions.

Impact of Prostate Cancer Diagnosis on Noncancer Hospitalizations Among Elderly Medicare Beneficiaries With Incident Prostate Cancer

OBJECTIVES

The purpose of this study was to analyze the impact of cancer diagnosis on noncancer hospitalizations (NCHs) by comparing these hospitalizations between the precancer and postcancer periods in a cohort of fee-for-service Medicare beneficiaries with incident prostate cancer.

METHODS

A population-based retrospective cohort study was conducted using the SEER-Medicare linked database for 2000 through 2010. The study cohort consisted of 57,489 elderly men (aged ≥ 67 years) with incident prostate cancer. NCHs were identified in 6 periods (t1-t6) before and after the incidence of prostate cancer. Each period consisted of 120 days. For each period, NCHs were defined as inpatient admissions with primary diagnosis codes not related to prostate cancer, prostate cancer-related procedures, or bowel, sexual, and urinary dysfunction. Bivariate and multivariate comparisons on rates of NCHs between the precancer and postcancer periods accounted for the repeated measures design.

RESULTS

The rate of NCHs was higher during the postcancer period (5.1%) compared with the precancer period (3.2%). In both unadjusted and adjusted models, elderly men were 37% (odds ratio [OR], 1.37; 95% CI, 1.32, 1.41) and 38% (adjusted OR, 1.38; 95% CI, 1.33, 1.46) more likely to have any NCHs during the postcancer period compared with the precancer period.

CONCLUSIONS

Elderly men with prostate cancer had a significant increase in the risk of NCHs after the diagnosis of prostate cancer. This study highlights the need to design interventions for reducing the excess NCHs after prostate cancer diagnosis among elderly men.

Association of Breastfeeding and the Federal Poverty Level: National Survey of Family Growth, 2011-2013

Breastfeeding is strongly endorsed in the Healthy People 2020 goals; however, there remain many disparities in breastfeeding prevalence. The purpose of this study was to examine the association between breastfeeding and the Federal Poverty Level in the United States. Data from 5,397 women in the National Survey of Family Growth 2011-2013 survey were included in this study. The data were analyzed for descriptive features and logistic regressions of the Federal Poverty Level on breastfeeding. There were 64.1% of women who reported breastfeeding. Over one-third (35.2%) of women reported having a household income of 0-99% of the Federal Poverty Level. There were 15.2% of women who reported an income of 400% and above the Federal Poverty Level. With statistical adjustment for maternal age, race/ethnicity, education, marital status, parity, preterm birth, birth weight, insurance, and dwelling, the Federal Poverty Level was not significantly associated with breastfeeding. In this recent survey of mothers, Federal Poverty Level was not shown to be a significant factor in breastfeeding.

Association between Metformin Use and Cancer Stage at Diagnosis among Elderly Medicare Beneficiaries with Preexisting Type 2 Diabetes Mellitus and Incident Prostate Cancer

Objective. To examine the association between metformin use and cancer stage at diagnosis among elderly men with preexisting diabetes mellitus and incident prostate cancer. Methods. This study used a population-based observational cohort of elderly men (≥66 years) with preexisting diabetes and incident prostate cancer between 2008 and 2009 (N = 2,652). Cancer stage at diagnosis (localized versus advanced) was based on the American Joint Cancer Committee classification. Metformin use and other independent variables were measured during the one year before cancer diagnosis. Logistic regressions with inverse probability treatment weights were used to control for the observed selection bias. Results. A significantly lower percentage of metformin users were diagnosed with advanced prostate cancer as compared to nonusers (4.7% versus 6.7%, p < 0.03). After adjusting for the observed selection bias and other independent variables, metformin use was associated with a 32% reduction in the risk of advanced prostate cancer (adjusted odds ratio, AOR: 0.68, 95% confidence interval, CI: 0.48, 0.97). Conclusions. This is the first epidemiological study to support the role of metformin in reducing the risk of advanced prostate cancer. Randomized clinical trials are needed to confirm the causal link between metformin use and prostate cancer diagnosis stage.

Rapid Acting Insulin Use and Persistence among Elderly Type 2 Diabetes Patients Adding RAI to Oral Antidiabetes Drug Regimens

We examined the real-world utilization and persistence of rapid acting insulin (RAI) in elderly patients with type 2 diabetes who added RAI to their drug (OAD) regimen. Insulin-naïve patients aged ≥65 years, with ≥1 OAD prescription during the baseline period, who were continuously enrolled in the US Humana Medicare Advantage insurance plan for 18 months and initiated RAI were included. Among patients with ≥2 RAI prescriptions (RAIp), persistence during the 12-month follow-up was assessed. Multivariate logistic regression analyses identified factors affecting RAI use and persistence. Of 3734 patients adding RAI to their OAD regimen, 2334 (62.5%) had a RAIp during follow-up. Factors associated with RAIp included using ≤2 OADs; cognitive impairment, basal insulin use during follow-up; and higher RAI out-of-pocket costs ($36 to <$56 versus $0 to $6.30). Patients were less likely to persist with RAI when on ≤2 OADs versus ≥3 OADs and when having higher RAI out-of-pocket costs ($36 to <$56 versus $0 to $6.30) and more likely to persist when they had cognitive impairment and basal insulin use during follow-up. Real-world persistence of RAI in insulin-naïve elderly patients with type 2 diabetes was very poor when RAI was added to an OAD regimen.

Healthcare Expenditures Associated with Depression Among Individuals with Osteoarthritis: Post-Regression Linear Decomposition Approach

BACKGROUND

Depression is common among individuals with osteoarthritis and leads to increased healthcare burden. The objective of this study was to examine excess total healthcare expenditures associated with depression among individuals with osteoarthritis in the US.

DESIGN

Adults with self-reported osteoarthritis (n = 1881) were identified using data from the 2010 Medical Expenditure Panel Survey (MEPS). Among those with osteoarthritis, chi-square tests and ordinary least square regressions (OLS) were used to examine differences in healthcare expenditures between those with and without depression. Post-regression linear decomposition technique was used to estimate the relative contribution of different constructs of the Anderson's behavioral model, i.e., predisposing, enabling, need, personal healthcare practices, and external environment factors, to the excess expenditures associated with depression among individuals with osteoarthritis. All analysis accounted for the complex survey design of MEPS.

KEY RESULTS

Depression coexisted among 20.6 % of adults with osteoarthritis. The average total healthcare expenditures were $13,684 among adults with depression compared to $9284 among those without depression. Multivariable OLS regression revealed that adults with depression had 38.8 % higher healthcare expenditures (p < 0.001) compared to those without depression. Post-regression linear decomposition analysis indicated that 50 % of differences in expenditures among adults with and without depression can be explained by differences in need factors.

CONCLUSIONS

Among individuals with coexisting osteoarthritis and depression, excess healthcare expenditures associated with depression were mainly due to comorbid anxiety, chronic conditions and poor health status. These expenditures may potentially be reduced by providing timely intervention for need factors or by providing care under a collaborative care model.

Depression treatment and health-related quality of life among adults with diabetes and depression

BACKGROUND

Previous findings regarding depression treatment and its consequences on health-related quality of life (HRQoL) of adults with diabetes were inconsistent and targeted certain groups of population. Therefore, there is a critical need to conduct a population-based study that focuses on a general population with diabetes and depression.

OBJECTIVE

The primary aim of this study was to examine the physical and mental HRQoL associated with depression treatment during the follow-up year.

METHODS

We adopted a longitudinal design using multiple panels (2005-2011) of the Medical Expenditure Panel Survey to create a baseline year and follow-up year. We included adults with diabetes and depression. We categorized the baseline depression treatment into: (1) antidepressant use only; (2) psychotherapy with or without antidepressants; and (3) no treatment. HRQOL was measured using SF-12 version 2 physical component summary (PCS) and SF-12 mental component summary (MCS) scores during both baseline year and follow-up year. Ordinary least squares (OLS) were used to estimate the association between depression treatment and the HRQoL measures. The OLS regression controlled for predisposing, enabling, need, external environment factors, personal health practices, and baseline HRQoL measures.

RESULTS

After controlling for all the independent variables and the baseline PCS, individuals who received psychotherapy with or without antidepressants had higher PCS scores as compared to those without any treatment for depression (beta = 1.28, p < 0.001). Individuals who reported using only antidepressants had lower PCS scores (beta = -0.54, p < 0.001) as compared to those without depression treatment. On the contrary, individuals who reported receiving psychotherapy with or without antidepressants had lower MCS scores as compared to those without depression treatment (beta = -1.43, p < 0.001). Those using only antidepressants had higher MCS scores as compared to those without depression treatment (beta = 0.56, p < 0.001).

CONCLUSION

The associations between depression treatment and the HRQoL varied by the type of depression treatment and the component of the HRQoL measures.

Multimorbidity and COPD Medication Receipt Among Medicaid Beneficiaries With Newly Diagnosed COPD

BACKGROUND

Multimorbidity is highly prevalent among patients with COPD. The association between multimorbidity and COPD medication management is not well researched. The aim of this study was to examine the association between multimorbidity and COPD medication receipt among Medicaid beneficiaries with newly diagnosed COPD.

METHODS

A retrospective longitudinal dynamic cohort design was used, and data were extracted from Medicaid Analytic eXtract files from 2005 to 2008. Medicaid beneficiaries with newly diagnosed COPD (N = 19,060) were identified using the International Classification of Diseases, 9th Revision, Clinical Modification, for COPD. This code (for commonly co-occurring conditions with COPD) was used to create a multimorbidity variable. These conditions included anxiety, arthritis, bipolar disorder, cardiovascular diseases, depression, diabetes, hypertension, hyperlipidemia osteoporosis, and schizophrenia. Medicaid beneficiaries with newly diagnosed COPD were categorized as: (1) physical multimorbidity only, (2) psychiatric multimorbidity only, (3) both physical and psychiatric multimorbidity, and (4) no multimorbidity. Receipt of COPD medications (short- or long-acting bronchodilators, inhaled corticosteroids) was identified using National Drug Codes. Bivariate relationships between multimorbidity and COPD medication receipt were tested using the chi-square test of independence. The associations between multimorbidity and COPD medication receipt were analyzed with logistic and multinomial logistic regression analyses.

RESULTS

Among Medicaid beneficiaries with newly diagnosed COPD, 81.9% had at least one co-occurring chronic condition. After controlling for subject characteristics, adults with multimorbidity were less likely to receive COPD medications compared with those without any inflammation-related multimorbidity. For example, those with physical multimorbidity were less likely to receive short-acting bronchodilators (adjusted odds ratio [OR] 0.76, 95% CI 0.69-0.83), long-acting bronchodilators (adjusted OR 0.84, 95% CI 0.76-0.92), and inhaled corticosteroids (adjusted OR 0.75, 95% CI 0.68-0.82) compared with those with no inflammation-related multimorbidity.

CONCLUSIONS

The prevalence of multimorbidity is very high among Medicaid beneficiaries with newly diagnosed COPD. Our findings indicate poor COPD medication management among those with multimorbidity.

Health care expenditures associated with depression in adults with cancer

BACKGROUND

The rates of depression in adults with cancer have been reported as high as 38%-58%. How depression affects overall health care expenditures in individuals with cancer is an under-researched area.

OBJECTIVE

To estimate excess average total health care expenditures associated with depression in adults with cancer by comparing those with and without depression after controlling for demographic, socioeconomic, access to care, and other health status variables.

METHODS

Cross-sectional data on 4,766 adult survivors of cancer from 2006-2009 of the nationally representative household survey, Medical Expenditure Panel Survey (MEPS), were used. The patients were older than 21 years. Cancer and depression were identified from the patients' medical conditions files. Dependent variables consisted of total, inpatient, outpatient, emergency department, prescription drugs, and other expenditures. Ordinary least square (OLS) on logged dollars and generalized linear models with log-link function were performed. All analyses (SAS 9.3 and STATA12) accounted for the complex survey design of the MEPS.

RESULTS

Overall, 14% of individuals with cancer reported having depression. In those with cancer and depression, the average annual health care expenditures were $18,401 compared with $12,091 in those without depression. After adjusting for demographic, socioeconomic, access to care, and other health status variables, those with depression had about 31.7% greater total expenditures compared with those without depression. Total, outpatient, and prescription expenditures were higher in individuals with depression than in those without depression. Individuals with cancer and depression were significantly more likely to use emergency departments (adjusted odds ratio, 1.46) compared with their counterparts without depression.

LIMITATIONS

Cancer patients who died during the reporting year were excluded. The financial burden of depression may have been underestimated because the costs of end-of-life care are high. The burden for each cancer type was not analyzed because of the small sample size.

CONCLUSION

In adults with cancer, those with depression had higher health care utilization and expenditures compared with those without depression.

FUNDING/SPONSORSHIP

One author was partially supported by the National Institute of General Medical Sciences, U54GM104942.