Browsing by Author "Lu, Zhiqiang K."
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Item Delivery of healthcare provider’s lifestyle advice and lifestyle behavioural change in adults who were overweight or obese in pre-diabetes management in the USA: NHANES (2013–2018)(BMJ, 2021) Davis-Ajami, Mary L.; Lu, Zhiqiang K.; Wu, JunObjective: The purpose of this study is to examine the association between delivery of healthcare provider's advice about lifestyle management and lifestyle behavioural change in pre-diabetes management in adults who were overweight or obese. Design: This cross-sectional study included adults with body mass index (BMI) ≥25 kg/m2 and reporting pre-diabetes in USA. Outcomes included the prevalence of receiving provider's advice on lifestyle management and patterns of practicing lifestyle change. The association between delivery of provider's advice and lifestyle-related behavioural change in pre-diabetes management was examined. Setting: US Continuous National Health and Nutrition Examination Survey (2013-2018). Participants: A total of 1039 adults with BMI ≥25 kg/m2 reported pre-diabetes. Results: Of eligible adults with pre-diabetes, 76.8% received provider's advice about lifestyle change. The advice group showed higher proportions of ongoing lifestyle change than no advice group, including weight reduction/control (80.1% vs 70.9%, p=0.018), exercise (70.9% vs 60.9%, p=0.013) and diet modifications (83.8% vs 61.8%, p<0.001). After adjustment, those receiving provider's advice were more likely to increase exercise (OR 1.63, 95% CI 1.12 to 2.38) and modify diet (OR 3.0, 95% CI 1.82 to 4.96). Conclusion: Over 75% of US adults who were overweight or obese and reported pre-diabetes received healthcare provider's advice about reducing the risk of diabetes through lifestyle change. Provider's advice increased the likelihood of lifestyle-related behavioural change to exercise and diet.Item Impact of migraine on health care utilization and expenses in obese adults: A U.S. population-based study(Dove Press, 2018-12) Wu, Jun; Davis-Ajami, Mary L.; Lu, Zhiqiang K.Purpose: Migraine prevalence increases in people with obesity, and obesity may contribute to migraine chronicity. Yet, few studies examine the effect of comorbid migraine on health care utilization and expenses in obese US adults. This study aimed to identify risk factors for migraine and compare the use of health care services and expenses between migraineurs and non-migraineurs in obese US adults. Subjects and methods: This 7-year retrospective study used longitudinal panel data from 2006 to 2013 from the Household Component of the Medical Expenditure Panel Survey to identify obese adults reporting migraines. Outcomes compared in migraineurs vs non-migraineurs were as follows: annualized per-person medical care, prescription drug, and total health expenses. Results: In 23,596 obese adults, 4.7% reported migraine (n=1,025) approximating 3 million civilian noninstitutionalized US individuals. Logistic regression showed that the following sociodemographic characteristics increased migraine risk: age (18-45 years), females, White race, poor perceived health status, and greater Charlson comorbidity index. Migraineurs showed US$1,401 (P=0.007), US$813 (P<0.001), and US$2,213 (P=0.001) greater annual medical, prescription drug, and total health expenses than non-migraineurs, respectively. After adjustment, total health expenses increased by 31.6% in migraineurs vs non-migraineurs. Conclusion: In this US adult obese population, migraineurs showed greater total health care utilization and expenses than non-migraineurs. Treatment plans that address risk factors associated with migraine and comorbidities may help reduce the utilization of health care services and costs.Item Multiple chronic conditions and associated health care expenses in US adults with cancer: a 2010-2015 Medical Expenditure Panel Survey study(BMC part of Springer Nature, 2019-12-19) Davis-Ajami, Mary; Lu, Zhiqiang K.; Wu, JunBackground: Cancer increases the risk of developing one or more chronic conditions, yet little research describes the associations between health care costs, utilization patterns, and chronic conditions in adults with cancer. The objective of this study was to examine the treated prevalence of chronic conditions and the association between chronic conditions and health care expenses in US adults with cancer. Methods: This retrospective observational study used US Medical Expenditure Panel Survey (MEPS) Household Component (2010–2015) data sampling adults diagnosed with cancer and one or more of 18 select chronic conditions. The measures used were treated prevalence of chronic conditions, and total and chronic condition specific health expenses (per-person, per-year). Generalized linear models assessed chronic condition-specific expenses in adults with cancer vs. without cancer and the association of chronic conditions on total health expenses in adults with cancer, respectively, by controlling for demographic and health characteristics. Accounting for the complex survey design in MEPS, all data analyses and statistical procedures applied longitudinal weights for national estimates. Results: Among 3657 eligible adults with cancer, 83.9% (n = 3040; representing 16 million US individuals per-year) had at least one chronic condition, and 29.7% reported four or more conditions. Among those with cancer, hypertension (59.7%), hyperlipidemia (53.6%), arthritis (25.6%), diabetes (22.2%), and coronary artery disease (18.2%) were the five most prevalent chronic conditions. Chronic conditions accounted for 30% of total health expenses. Total health expenses were $6388 higher for those with chronic conditions vs. those without (p < 0.001). Health expenses associated with chronic conditions increased by 34% in adults with cancer vs. those without cancer after adjustment. Conclusions: In US adults with cancer, the treated prevalence of common chronic conditions was high and health expenses associated with chronic conditions were higher than those without cancer. A holistic treatment plan is needed to improve cost outcomes.Item Telemedicine use in 2020 during the COVID-19 pandemic among community dwelling U.S. Medicare beneficiaries(SCIEDU, 2021-09-28) Davis-Ajami, Mary L.; Lu, Zhiqiang K.; Wu, JunObjective: CMS reimbursement regulations for telemedicine changed after the onset of the COVID-19 pandemic. This study aimed to assess telemedicine utilization patterns offered by health care providers and used by Medicare beneficiaries during the COVID-19 pandemic during 2020. Methods: This study used the Fall 2020 Medicare Current Beneficiary Survey (MCBS) supplemental COVID-19 survey to identify Medicare beneficiaries (≥ 65 years) with a regular place for medical care that offered telemedicine during 2020. Major outcomes: prevalence for whether telemedicine was offered before and during the pandemic, telemedicine use, and digital access to telemedicine. Logistic regression identified the demographic factors associated with telemedicine use. Results: The study sample included 4,380 eligible individual Medicare beneficiaries ≥ 65 years. Of those, 42.9% made telemedicine visits during the pandemic. Approximately 60% of the telemedicine visits were conducted via telephone. Telemedicine was offered to 18% of the respondents before the pandemic vs. 64% during year 2020 of the pandemic. Among telemedicine users, 57.2%, 28.3%, and 14.5% used voice calls, video calls, and both voice and video calls for health care appointments, respectively. Overall telemedicine use varied by sex, race, and region. Individuals 65-74 years, female, living in a metropolitan area, with higher incomes were more likely to make video visits. Experience using telecommunications via the internet influenced telemedicine use significantly. Conclusions: Telemedicine offered to older Medicare beneficiaries increased dramatically after the onset of the COVID-19 pandemic. Yet, less than half used telemedicine and differences in utilization existed by demographic characteristics.