Machine-learning model predicting quality of life using multifaceted lifestyles in middle-aged South Korean adults: a cross-sectional study

BACKGROUND

In the context of population aging, advances in healthcare technology, and growing interest in healthy aging and higher quality of life (QOL), have gained central focus in public health, particularly among middle-aged adults.

METHODS

This study presented an optimal prediction model for QOL among middle-aged South Korean adults (N = 4,048; aged 30-55 years) using a machine-learning technique. Community-based South Korean population data were sampled through multistage stratified cluster sampling. Twenty-one variables related to individual factors and various lifestyle patterns were surveyed. QOL was assessed using the Short Form Health Survey (SF-12) and categorized into total QOL, physical component score (PCS), and mental component score (MCS). Seven machine-learning algorithms were used to predict QOL: decision tree, Gaussian Naïve Bayes, k-nearest neighbor, logistic regression, extreme gradient boosting, random forest, and support vector machine. Data imbalance was resolved with the synthetic minority oversampling technique (SMOTE). Random forest was used to compare feature importance and visualize the importance of each variable.

RESULTS

For predicting QOL deterioration, the random forest method showed the highest performance. The random forest algorithm using SMOTE showed the highest area under the receiver operating characteristic (AUC) for total QOL (0.822), PCS (0.770), and MCS (0.786). Applying the data, SMOTE enhanced model performance by up to 0.111 AUC. Although feature importance differed across the three QOL indices, stress and sleep quality were identified as the most potent predictors of QOL. Random forest generated the most accurate prediction of QOL among middle-aged adults; the model showed that stress and sleep quality management were essential for improving QOL.

CONCLUSION

The results highlighted the need to develop a health management program for middle-aged adults that enables multidisciplinary management of QOL.

Relationships among changes in physical activity, quality of life, and obesity-Status following a behavioral intervention for rural Appalachian adults

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Increasing weekly strength training was associated with reduced unhealthy days.

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No other physical activity and health-related quality of life (HRQoL) changes were linked.

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Baseline obesity did not moderate physical activity and HRQoL change relationships.

Improved health-related quality of life (HRQoL) is one benefit of physical activity. Yet, there is limited intervention research exploring (1) whether changes in physical activity influence changes in HRQoL among community-based populations and (2) if baseline obesity status influences the relationships. This exploratory analysis used secondary data from rural Appalachian adults who completed the MoveMore arm of a larger randomized control trial (n = 105, M_age = 41.8, 82 % female, 96 % White, M_income= $25,911). Specifically, this study examined associations among changes in physical activity and HRQOL and whether baseline obesity status moderated changes. Three HRQoL variables (self-rated health status, total unhealthy days, days poor health impacted activities) and two physical activity variables [weekly moderate-vigorous physical activity (MVPA) minutes, weekly strength training minutes] were collected at baseline and 6-months. Regression models, adjusted for age, gender, race, income, education, assessed associations between physical activity and HRQoL change variables. Moderation analyses explored the influence of baseline obesity status on these relationships. Participants reported significant improvements in self-rated health status (P = 0.001), weekly MVPA minutes (P = 0.008), and weekly strength training minutes (P < 0.001). Increasing weekly strength training minutes was associated with fewer days poor health impacted activities (B = -0.040, P = 0.013). Weekly minutes of MVPA was not associated with HRQoL variables. Baseline obesity status did not moderate relationships. Findings suggest increasing weekly strength training may reduce days poor health impacted activities and that relationships among changes in physical activity and HRQoL were not impacted by baseline obesity. Findings have implications for promoting strength activities in community-based physical activity interventions for rural populations.

Possible metabolic interplay between quality of life and fecal microbiota in a presenior population-Preliminary results

OBJECTIVES

The number of people aged ≥60 y is increasing worldwide, so establishing a relationship between lifestyle and health-associated factors, such as gut microbiota in an older population, is important. This study aimed to characterize the gut microbiota of a presenior population, and analyze the association between some bacteria and quality of life with the Short Form (SF) 36 questionnaire.

METHODS

Participants were adult men and women ages 50 to 80 y (n = 74). In addition to the SF-36 questionnaire, fecal samples were collected in cryotubes, and 16S RNA gene sequencing was performed to characterize microbial features. Participants were classified into two groups according to SF-36 punctuation. Linear and logistic regression models were performed to assess the possible association between any bacterial bowl and SF-36 score. Receiver operating characteristics curves were fitted to define the relative diagnostic strength of different bacterial taxa for the correct determination of quality of life.

RESULTS

A positive relationship was established between SF-36 score and Actinobacteria (P = 0.0310; R = 0.2510) compared with Peptostreptococcaceae (P = 0.0259; R = -0.2589), which increased with decreasing quality of life. Logistic regressions models and receiver operating characteristics curves showed that the relative abundance of Actinobacteria and Peptostreptococcaceae may be useful to predict quality of life in a presenior population (area under the curve: 0.71).

CONCLUSIONS

Quality of life may be associated with the relative abundance of certain bacteria, especially Actinobacteria and Peptostreptococcaceae, which may have a specific effect on certain markers and health care, which is important to improve quality of life in older populations.

Physical activity in health care professionals as a means of primary prevention of cardiovascular disease: A STROBE compliant cross-sectional study

The aim of this study was to assess the physical activity level of health care professionals, as well as the differences by sex, age, academic background, and among different health care professions.This is an cross-sectional study.Health care settings in the Valencian Community, Spain.A total of 647 health care professionals.Physical activity was assessed with the European Health Interview Survey-Physical Activity Questionnaire (EHIS-PAQ) that includes the assessment of work-related physical activity, transport-related physical activity, health-enhancing physical activity, muscle-strengthening physical activity, and total physical activity.93.51% of all health care professionals were physically active at work. Transport-related physical activity and health-enhancing physical activity were significantly lower in women (21.62% vs 41.86%, P < .001; and 50.19% vs 68.99%, P < .001, respectively). In addition, compliance with health-enhancing and muscle-strengthening physical activity guidelines were lower in older professionals (42.7% vs 61.84%, P < .001; and 47.57% vs 61.84%, P < .001, respectively). Those with higher education were more compliant with health-enhancing and muscle-strengthening physical activity guidelines (58.55% vs 45.69%, P = .002; and 60.24% vs 48.28%, P = .003, respectively). Moreover, 67.98% of physiotherapists performed health-enhancing physical activity and 67.54% muscle-strengthening physical activity regularly, and significant differences in all outcomes were observed compared to the rest of health care professionals (P < .05). Technicians showed lower work-related and total physical activity than nurses and nursing assistants (74.55% vs 90.37%, P = .002; and 83.64% vs 95.72%, P < .001, respectively). Additionally, nursing assistants showed higher work-related physical activity compared to nurses (97.18% vs 90.37%, P = .008).Most health care professionals showed an appropriate level of physical activity. Men performed more transport-related and health-enhancing physical activity than women. Younger professionals and those with higher education were more compliant with health-enhancing and muscle-strengthening physical activity guidelines. Physiotherapists were more physically active when compared to the rest of health care professionals.

Effects of Structured Lifestyle Education Program for Individuals With Increased Cardiovascular Risk Associated With Educational Level and Socioeconomic Area

Background. Differences in socioeconomic status contribute to inequalities in lifestyle habits and burden of noncommunicable diseases. We aimed to examine how the effects of a 1-year structured lifestyle education program associate with the participant’s educational level and socioeconomic area (SEA) of residence. Methods. One hundred individuals (64% women) with high cardiovascular risk were included. Education level (nonuniversity vs university degree) was self-reported and SEA (low vs high) defined by living in different SEAs. Lifestyle habits and quality of life were self-reported, cardiovascular risk factors and Framingham 10-year cardiovascular disease risk were measured at baseline and after 1 year. Results. Sedentary behavior decreased in both nonuniversity degree and low SEA group over 1 year, with a significantly greater improvement in daily activity behavior in low- compared with high-SEA group. Abdominal obesity decreased significantly more in the nonuniversity compared with the university degree group. Cardiovascular risk and quality of life improved in all groups, however, with greater discrimination when using educational level as the dichotomization variable. Conclusion. The results are clinically and significantly relevant, suggesting that low socioeconomic status measured both as educational level and SEA are no barriers for changing unhealthy lifestyle habits and decreasing cardiovascular risk after participation in a lifestyle program.

Evaluation of Very Integrated Program: Health Promotion for Patients With Alcohol and Drug Addiction-A Randomized Trial

BACKGROUND

Compared to the general population, patients with alcohol and drug addiction have an increased risk of additional hazardous lifestyles and suffer from more chronic diseases, adding to their already significantly higher morbidity and mortality. The objective of this study was to test the efficacy of the Very Integrated Program (VIP) on treatment and health outcomes for patients diagnosed with alcohol and drug addiction.

METHODS

Parallel randomized clinical trial with intervention as add-on to addiction care as usual. A total of 322 patients aged 18 years or older were identified, and the study requirements were fulfilled by 219 patients, 7 of whom participated in a pilot. The intervention was a 6-week intensive, tailored, educational program that included motivational interviewing, a smoking cessation program, dietary and physical activity counseling, and patient education. The main outcome measures were substance-free days, time to relapse, and treatment adherence assessed after 6 weeks and 12 months. Secondary outcomes were lifestyle factors, symptoms of comorbidity, and quality of life. Missing data were imputed conservatively by using data closest to the follow-up date and baseline values in patients with no follow-up.

RESULTS

The 212 patients (intervention, n = 113; control, n = 99) were randomized, and 202 had complete data for primary outcomes. After 6 weeks, there were no significant differences between the groups regarding primary or secondary outcomes. At the 12-month follow-up, the patients in the control group had significantly more total substance-free days (139 days; ranging 0 to 365 vs. 265; 0 to 366, p = 0.021)-specifically among the patients with drug addiction-and higher physical and mental quality of life (45 vs. 58, p = 0.049 and 54 vs. 66, p = 0.037), but not in the per-protocol analysis (60 vs. 46, p = 0.52 and 70 vs. 66, p = 0.74). The sensitivity analyses did not support significant differences between the groups.

CONCLUSION

Overall, adding VIP intervention did not improve outcome of the alcohol or drug addiction care or the lifestyle compared to the addiction care alone. This patient group is still in need of effective programs, and new intervention research is required to develop that.

Experiences from individuals with increased cardiovascular risk participating in a one-year lifestyle program

OBJECTIVE

The purpose of the current study was to describe the participants' experiences of a structured lifestyle program for persons with high cardiovascular risk.

METHOD

Sixteen participants with high cardiovascular risk participating in a one-year structured lifestyle intervention program were interviewed regarding their experiences of the program. The interviews were analyzed using content analyses.

RESULTS

The participants' (mean age 58 ± 9) experiences were categorized into three categories: "How to know," based on the participants' experience from both individual counselling and group sessions with tools to strengthen self-care; "Staff who know how," based on experience from the meeting with, and the importance of, competent health professionals; "Why feedback is essential," based on the participants' experience and effects of person-centered feedback. Several factors were deemed important in the structure of the program: an individual visit with shared goal setting, a group education session with interactive discussion, a competent, educated, and respectful health professional who gives continuous feedback, and the right tools to support self-care at home between visits.

CONCLUSION

Individuals participating in a structured lifestyle program experienced several factors as important: an individual visit with shared goal setting, a group education session with interactive discussion, a competent, educated, and respectful healthcare professional who gives continuous feedback, and the right tools to support self-care at home between visits.

Association between Motivational Climate, Adherence to Mediterranean Diet, and Levels of Physical Activity in Physical Education Students

Physical Education is an essential educational area to develop physical-healthy habits and motivational orientations, which are fundamental to guide the situation of future Physical Education teachers. These professionals will have a fundamental role in teaching different types of motivations, active lifestyles, and healthy habits in youths. For this reason, the objective of the study is to know the association between motivational climate, adherence to the Mediterranean Diet (MD), and the practice of physical activity in future Physical Education teachers. A cross-sectional and nonexperimental study was carried out using a single measurement within a single group. The sample consisted of 775 university students from the cities of Andalusia (Spain). Motivational climate was evaluated through the Perceived Motivational Climate in Sport Questionnaire (PMCSQ-2), levels of physical activity were evaluated through the adolescent version of the Physical Activity Questionnaire (PAQ-A), and level of adherence to the MD was assessed through Mediterranean Diet Quality Index (KIDMED). On one hand, the healthy and self-improvement component promoted by physical activity favors an orientation focused on process and learning. Likewise, the competitive component is key to motivation focused on product and social recognition. In addition, future Physical Education teachers should pay special attention to the unequal recognition among members that physical activity can generate, in order to avoid personal disregard and social rejection. The ego climate is related to a high adherence to the MD. On the other hand, the future Physical Education teachers who manifest motivational processes based on fun and their own satisfaction have low levels of adherence to the MD.

Improved unhealthy lifestyle habits in patients with high cardiovascular risk: results from a structured lifestyle programme in primary care

Background. Physical activity, healthful dietary habits, and not smoking are associated with reduced cardiovascular morbidity and mortality. However, few studies have examined how counselling to improve poor lifestyle habits might be carried out in clinical practice. In Swedish primary care, structured lifestyle counselling is still not integrated into everyday clinical practice. The aim of the present study was two-fold: (1) to describe a novel lifestyle intervention programme in primary care; and (2) to evaluate change in unhealthy lifestyle habits over 1 year in men and women with high cardiovascular risk who participated in the lifestyle intervention programme. Method. A single-group study with a 1-year follow-up was carried out. A total of 417 people was enrolled, median age 62 years (54% women), with either hypertension (69%), type 2 diabetes mellitus, or impaired glucose tolerance. The 1-year intervention included five counselling sessions that focused on lifestyle habits, delivered by a district nurse with postgraduate credits in diabetes care and the metabolic syndrome. All patients were offered in-depth counselling for one or more lifestyle habits when needed. Lifestyle habits were assessed by a questionnaire at baseline and 1-year follow-up. Total change was assessed using a nine-factor unhealthy lifestyle habit index. Results. Favourable, significant changes were observed for physical activity, dietary habits, smoking, and stress over 1 year. Similar improvements were seen for both sexes and type of diagnosis. Conclusions. The results support the utility of a multifactorial, structured approach to change unhealthy lifestyle habits for cardiovascular risk prevention in a primary care setting.

Reasons to stop drinking alcohol among patients with rheumatoid arthritis in Sweden: a mixed-methods study

OBJECTIVES

The aims were to identify patients with rheumatoid arthritis (RA) who had stopped drinking alcohol and compare them with patients drinking alcohol, and to explore reasons for stopping drinking alcohol.

DESIGN

A sequential explanatory mixed methods design was used.

SETTING

Six rheumatology clinics in Southern Sweden Better Anti-Rheumatic FarmacOTherapy cohort.

PARTICIPANTS

A total of 1509 patients completed the questions about alcohol and were included in the study. 86 of these had stopped drinking alcohol and 72 responded to the open question and their answers were analysed with qualitative content analysis.

OUTCOME MEASURES

The quantitative data were from a cross-sectional survey assessing disease severity, physical function (Health Assessment Questionnaire, HAQ) and health-related quality of life (EuroQol five dimensions, EQ5D), pain, fatigue, patient global assessment (PatGA) and lifestyle factors, for example, alcohol. The questions assessing alcohol included an open question 'Why have you stopped drinking alcohol?'

RESULTS

The patients who stopped drinking alcohol were older (median (min-max) 69 (36-90) vs 66 (23-95), p=0.011), had worse HAQ (1.00 (0-2.75) vs 0.50 (0-3.00), p<0.001), worse EQ5D (0.69 (-0.02-1.00) vs 0.76 (-0.58-1.00), p<0.001) worse PatGA (5 (0-10) vs 3 (0-10), p<0.001), more pain (5 (0-10) vs 3 (0-10), p<0.001) and more fatigue (6 (0-10) vs 4 (0-10), p<0.001 compared with patients drinking alcohol. The qualitative content analysis revealed five categories describing reasons for patients with RA to stop drinking alcohol: illness and treatment; health and well-being; work and family; faith and belief; and dependences and abuse.

CONCLUSIONS

The patients who had stopped drinking had worse physical functioning and higher levels in pain-related variables. Most stopped drinking due to their illness or a desire to improve health.

Long-term effects on cardiovascular risk of a structured multidisciplinary lifestyle program in clinical practice

Background

Cardiovascular disease is still the leading cause of premature death world-wide with factors like abdominal obesity, hypertension and dyslipidemia being central risk factors in the etiology. The aim of the present study was to investigate the effects on cardiovascular risk factors and cardiovascular risk after 6 months and 1 year, in individuals with increased cardiovascular risk enrolled in a lifestyle multidisciplinary program in a clinical setting.

Method

Individuals with increased cardiovascular risk were referred from primary health care and hospitals to a program at an outpatient clinic at a department of cardiology. The program consisted of three individual visits including a health check-up with a physical examination and blood sampling, and a person-centered dialogue for support in behavioural change of unhealthy lifestyle habits (at baseline, 6 months and 1 year). Furthermore, five educational group sessions were given at baseline. Cardiovascular risk was assessed according to Framingham cardiovascular risk predicting model.

Results

One hundred individuals (mean age 59 years, 64% women) enrolled between 2008 and 2014 were included in the study. Waist circumference, systolic and diastolic blood pressure and total cholesterol decreased significantly over 1 year. In parallel, cardiovascular risk according to the cardiovascular risk profile based on Framingham 10-year risk prediction model, decreased with 15%. The risk reduction was seen in both men and women, and in participants with or without previous cardiovascular disease.

Conclusion

Participating in a structured lifestyle program over a year was associated with significant improvement in multiple cardiovascular risk factors and decreased overall cardiovascular risk.

Trial registration

The study is registered at www.clinicaltrials.gov (ClinicalTrial.gov ID: NCT02744157).