Machine learning-based identification of determinants for rehabilitation success and future healthcare use prevention in patients with high-grade, chronic, nonspecific low back pain: an individual data 7-year follow-up analysis on 154,167 individuals.

ABSTRACT: To individually prescribe rehabilitation contents, it is of importance to know and quantify factors for rehabilitation success and the risk for a future healthcare use. The objective of our multivariable prediction model was to determine factors of rehabilitation success and the risk for a future healthcare use in patients with high-grade, chronic low back pain. We included members of the German pension fund who participated from 2012 to 2019 in multimodal medical rehabilitation with physical and psychological treatment strategies because of low back pain (ICD10:M54.5). Candidate prognostic factors for rehabilitation success and for a future healthcare use were identified using Gradient Boosting Machines and Random Forest algorithms in the R-package caret on a 70% training and a 30% test set. We analysed data from 154,167 patients; 8015 with a second medical rehabilitation measure and 5161 who retired because of low back pain within the study period. The root-mean-square errors ranged between 494 (recurrent rehabilitation) and 523 (retirement) days ( R2 = 0.183-0.229), whereas the prediction accuracy ranged between 81.9% for the prediction of the rehabilitation outcome, and 94.8% for the future healthcare use prediction model. Many modifiable prognostic factors (such as duration of the rehabilitation [inverted u-shaped], type of the rehabilitation, and aftercare measure), nonmodifiable prognostic factors (such as sex and age), and disease-specific factors (such as sick leave days before the rehabilitation [linear positive] together with the pain grades) for rehabilitation success were identified. Inpatient medical rehabilitation programmes (3 weeks) may be more effective in preventing a second rehabilitation measure and/or early retirement because of low back pain compared with outpatient rehabilitation programs. Subsequent implementation of additional exercise programmes, cognitive behavioural aftercare treatment, and following scheduled aftercare are likely to be beneficial.

Adherence to exercise and fitness following exercise-based outpatient cardiac rehabilitation: a cross-sectional survey for Germany.

BACKGROUND: Exercise-based cardiac rehabilitation is safe and effective, evidence-based and implemented in national and international cardiac rehabilitation guidelines. Recent data show a decrease in cardiovascular mortality, reduced hospital admissions and an overall improvement in quality of life. To maintain positive effects and to prevent further cardiovascular events a major goal of cardiac rehabilitation is to induce a long-term health behaviour change and the integration of regular physical activity and exercise training in everyday life. The aim of this study is to evaluate the adherence of cardiac patients to exercise-based programs following rehabilitation phase III. METHODS: A nationwide online cross-sectional survey was conducted. All outpatient aftercare providers who offer sports rehabilitation programs (heart groups) for cardiac patients in Germany were contacted. The questionnaire comprised 15 questions in five subcategories (general information regarding the outpatient aftercare provider, structure of rehabilitation sport programs, membership structure, content of heart groups, adherence to exercise-based programs). RESULTS: 560 of 2447 outpatient aftercare providers participated in the survey (response rate: 23%). On average, rehabilitation sport facilities hosted 2 (IQR 2) heart groups per week, and 23 patients (IQR 30) (61% males; 31% females) per facility completed rehabilitation sport prescription in 2018. Almost all providers offer follow-up programs on a self-payer basis after rehabilitation sport prescription ends. Adherence to follow-up programs was at 54% (IQR 65; 55% males and 50% females). With 60% (IQR 71), patients with a statutory health insurance (mainly pensioners) adhere slightly more often to a follow-up program compared to privately insured persons (mainly population with a high income or civil servants) with 50% and significantly more often compared to persons who were insured by the German pension fund (covering working population) with only 9% (IQR 89) adherence. CONCLUSION: Almost all outpatient aftercare providers offer follow-up programs for cardiac rehabilitation patients but only half of them actually participate. Younger people (working population) do not adhere sufficiently to sport and exercise programs following rehabilitation phase III. This seems critical to address in terms of achieving long-term rehabilitation goals.

Physical Activity Treatment in Adults with Type 2 Diabetes Mellitus per National Treatment Guidelines for Germany: A Telephone-Survey-Based Analysis.

Physical activity (PA) is effective in the prevention of type 2 diabetes mellitus (T2DM). According to the German national treatment guidelines for T2DM, PA is recommended at all stages of the treatment process. Adults with T2DM were recruited within the cross-sectional telephone survey 'Disease knowledge and information needs-Diabetes mellitus (2017)'. Self-reported data on socio-demographic characteristics, previous and current T2DM treatment, and PA behavior were collected. Using multivariable logistic regression models, the correlation between PA treatment (referrals and recommendations) and PA was investigated. Overall, 1149 adults diagnosed with T2DM are included in the analysis. Of the participants, 66.7% reported having ever received PA as part of their T2DM treatment with 61% of the participants reporting PA treatment at the time of the initial T2DM diagnosis and 54% at the time of the interview. Women, older participants, and those with a lower educational level were less likely to have ever been treated with PA. Currently being treated with PA as part of the T2DM treatment was associated with higher rates of achieving the World Health Organization's PA recommendations (≥150 min per week) (OR = 1.95, 95% CI: 1.42-2.68), as well as ever being treated with PA (OR = 1.74, 95% CI: 1.20-2.38). The analyses showed that PA treatment plays a role in the treatment process of T2DM, but not all patient subgroups benefit in the same way. Efforts to increase PA treatment as part of T2DM treatment are needed, especially for those who are currently not treated with PA. Further research is needed to better understand the type of PA (e.g., structured or unstructured) undertaken by adults with T2DM to develop tailored PA interventions for adults with T2DM and for those in vulnerable subgroups.

[Necessity and Ways to Develop Care Goals for the Health System in Germany - a Position Paper of the DNVF]. / Notwendigkeit und Wege zur Entwicklung von Versorgungszielen für das Gesundheitssystem in Deutschland ­ ein Positionspapier des DNVF.

Goals for health and health care are an indispensable basic requirement for a functioning health care system. The dilemma of the German health care system is that it has not been designed in a planned way, but that it has grown historically. In recent years, it has developed through the free play of forces into what it is today. The OECD characterizes the current state as follows: The costs of the German health system do not correspond to the often only average health outcomes for the population. To meet the legal requirements (especially SGB V §§ 12, 27 and 70), health care/the health system in Germany needs concrete goals. An orientation towards health care goals entails measures on all levels of health care: on the macro level (overall system/total population), on the meso level (subdivided according to regions, specific population groups, etc.) as well as on the micro level (patients and health care providers). Based on national and international experiences, this position paper of the DNVF e.V. (German Network for health services research) shows the potential of how operationalised health care targets can ensure effective, affordable and high-quality health care. The coalition agreement of the current government propagates a reorientation with patient-related health care goals. Now it is important to derive concrete and realisable goals from this declaration of intent and to involve all important groups in the process. In addition, values and ethical standards for implementation shall be agreed upon in this process. The Health Ministry (BMG) should facilitate and promote the process of societal will-building for the definition of national health care goals. This requires a clear political will. As a result, the National Health Care Goals are available at the end of the process, which are published and maintained together with evidence-based facts as well as valid and resilient data in a Manual "National Health Care Goals". The operational responsibility for implementation could lie with the newly to be founded Federal Institute of Public Health, as already announced in the agreement of the governing coalition. The DNVF is willing to actively participate in the development of health care targets.

Exercise-Based Cardiac Rehabilitation: Secondary Data Analyses of Mortality and Working Capacity in Germany, 2010-2017.

BACKGROUND: Exercise-based cardiac rehabilitation is safe and implemented in international cardiac rehabilitation guidelines. Evidence for long-term health effects is scarce and rare for health care service research. OBJECTIVE: The aim of this study is to evaluate the effectiveness of exercise-based phase III cardiac rehabilitation programs in improving mortality and working capacity outcomes. METHODS: The present analyses used claims data of the German pension fund from 2010 to 2017. Overall, 54,163 patients with coronary heart disease (ICD10 I20.-I25.) were included and followed up for exercise-based cardiac rehabilitation participation (mean 4.3 ± 1.9 years). All patients were categorized according to participation duration (long: ≥ 90 days, short: < 90 days, no). The effectiveness of exercise-based rehabilitation was analyzed by calculating adjusted hazard ratios for mortality and reduced working capacity in relation to program participation. RESULTS: Of all the cardiac patients, 57.6% received medical recommendations for exercise-based phase III rehabilitation, and 16.8% participated in this rehabilitation. In total, 1776 (3.3%) patients died during the study period, and 3050 (5.5%) received reduced earning capacity pensions. Mortality risk was nearly doubled for those who did not participate in exercise-based cardiac rehabilitation compared to those who participated for a long duration (HR 1.97, 95% CI 1.60-2.43) and 44% higher compared to a short participation (HR 1.44, 95% CI 1.03-2.01). Furthermore, the risk of reduced working capacity was higher for those who did not participate compared to those who participated for a short duration (HR 1.24, 95% CI 1.00-1.54). CONCLUSION: Exercise-based phase III cardiac rehabilitation is independently associated with reduced mortality and reduced loss in working capacity. Strong efforts should be made to increase participation rates to improve cardiac patients care.

[Reference Values for Cardiorespiratory Fitness of the General Population: The German National Health Interview and Examination Survey for Adults (DEGS1) 2008-2011]. / Referenzwerte für die kardiorespiratorische Fitness der allgemeinen Bevölkerung: Die Studie zur Gesundheit Erwachsener in Deutschland (DEGS1) 2008­2011.

AIM OF STUDY: This study aims to provide population-based reference values for heart rate-based indicators of cardiorespiratory fitness for adults with physical activity readiness aged 18 to 64 years living in Germany. METHODS: Based on data on 2,826 individuals who participated in a submaximal cycle ergometer exercise test as part of the German National Health Interview and Examination Survey for Adults (DEGS1) between 2008 and 2011, we calculated the following indicators: physical working capacity at 150 and 130 beats/min and at 75% of estimated maximum heart rate (PWC150, PWC130 and PWC75%) as well as heart rate-based estimated maximum oxygen uptake (VO2max). We used the LMS method by Cole & Green 1992 to calculate reference values. RESULTS: 25th, 50th and 75th percentiles of PWC150 were 1.5, 1.77 and 2.08 watts/kg among men and 1.18, 1.44 and 1.69 among women. 25th, 50th and 75th percentiles of PWC130 were 1.16, 1.41 and 1.68 watts/kg among men and 0.81, 1.05 and 1.29 among women. Age-dependent median PWC75% values among men and women were 1.87 - age in years× 0.01 and 1.31 - (age in years/100)2× 0.98, respectively, and VO2max among men is 41.7 - age× 0.15. CONCLUSIONS: The references values presented can be used for individual rating of cardiorespiratory fitness among adults living in Germany. Furthermore, they can serve as a basis for regular monitoring purposes.

Sports activity patterns and cardio-metabolic health over time among adults in Germany: Results of a nationwide 12-year follow-up study.

BACKGROUND: Physical activity is favorable for health, and vigorous sports activity is particularly beneficial. This study investigates the association between changes in sports participation patterns over time and cardio-metabolic and self-perceived health outcomes. METHODS: Data from 3752 adults (18-79 years of age) who participated in 2 national health interview and examination surveys in 1997-1999 and 2008-2011 were included, with a mean follow-up time of about 12 years. A change in self-reported sports activity was analyzed with respect to the incidence of type 2 diabetes, coronary heart disease (CHD), hypertension, obesity, dyslipidemia, metabolic syndrome, and poor self-perceived health. Participants with pre-existing disease or risk factor of interest at baseline were excluded from the analysis. Being sufficiently active in sports was specified as doing sports for at least 1-2 h per week, and 4 activity categories were defined: 1) inactive at both time points (inactive-inactive), 2) inactive at baseline and active at follow-up (inactive-active), 3) active at baseline and inactive at follow-up (active-inactive), and 4) active at both time points (active-active). Associations between sports activity engagement and health outcomes were estimated by logistic regression models with different stages of adjustments. RESULTS: Not engaging in any regular sports activity at both time points (inactive-inactive) was associated with higher rates of type 2 diabetes (odds ratio (OR) = 1.82, 95% confidence interval (95%CI): 1.08-3.08), CHD (OR = 1.82, 95%CI: 1.16-2.84), hypertension (OR = 1.36, 95%CI: 1.03-1.81), metabolic syndrome (OR = 1.58, 95%CI: 1.08-2.32), and poor self-perceived health (OR = 2.54, 95%CI: 1.83-3.53) compared to doing regular sports for a minimum of 1-2 h per week over time (active-active). In case of change from inactivity to any regular sports activity (inactive-active), the rate of risk factor occurrence was not statistically different from the active-active reference group except for poor self-perceived health, but it was higher for type 2 diabetes (OR = 2.15, 95%CI: 1.12-4.14) and CHD (OR = 1.77, 95%CI: 1.03-3.03). Being active at baseline but inactive at follow-up (active-inactive) was not associated with higher disease incidence of type 2 diabetes (OR = 0.70, 95%CI: 0.25-1.97) or CHD (OR = 1.20, 95%CI: 0.49-2.99), but was associated with higher rates of hypertension (OR = 1.61, 95%CI: 1.11-2.34), obesity (OR = 2.34, 95%CI: 1.53-3.57), metabolic syndrome (OR = 1.70, 95%CI: 1.11-2.63), and poor self-perceived health (OR = 2.16, 95%CI: 1.53-3.07) at follow-up. CONCLUSION: Even a low weekly quantity (1-2 h) of regular sports activity is partly associated with health benefits. Being formerly but not currently active was not associated with an increased disease incidence, but was associated with a higher risk-factor development compared to the reference group (active-active). Becoming active was preventive for risk-factor development but was not preventive for disease incidence, which probably means that the health benefits from sports activity are not sustainable and disease incidence is only shifted to a later period in life. For this reason, the promotion of and commitment to regular sports activity should be addressed as early as possible over the lifespan to achieve the best health benefits.

Participation in structured diabetes mellitus self-management education program and association with lifestyle behavior: results from a population-based study.

OBJECTIVE: Whether participation in structured diabetes self-management education programs (DSME) for participants with diabetes mellitus is associated with a healthy lifestyle in routine care apart from randomized-controlled studies remains unclear and is this studies' research question. RESEARCH DESIGN AND METHODS: We identified 1300 persons with diabetes mellitus drawn from the cross-sectional population-based analysis German Health Update 2014/2015 (GEDA 2014/2015), which integrated the modules of the European Health Interview Survey (EHIS) wave 2. Of those, 816 were ever-DSME participants and 484 never-participants. We conducted multivariable weighted logistic regression analyses for lifestyle differences comparing ever-DSME and never-DSME participants. Lifestyle was defined by physical activity (PA), current smoking, fruit/vegetable consumption and body mass index (BMI). Age, sex, socioeconomic status, living together, limitation due to health problems for at least for 6 months, self-efficacy and attention to one's health were included as confounders in the regression models. RESULTS: Ever-DSME participants engaged significantly more often in cycling at least 1 day per week (OR 1.62, 95% CI: 1.15-2.30) and performed significantly more often aerobic endurance training of 150 min per week (including walking: OR 1.42, 95% CI: 1.03-1.94, without walking: OR 1.48, 95% CI: 1.08-2.03) compared with never-DSME participants. Ever-DSME participants were significantly more often ex-smoker compared with never-DSME participants (OR 1.39, 95% CI: 1.03-1.88). DSME attendance was not significantly associated with current smoking, BMI and fruit or vegetable consumption. CONCLUSION: DSME participation is associated with a moderately healthier lifestyle particularly for PA even in routine healthcare. Study results emphasize the importance of a broadly dissemination of DSME access for nationwide diabetes healthcare. Future studies should adjust for DSME participation when investigating lifestyle in persons with diabetes.

[Prescription and Utilization of Sports Therapy Programs following Cardiac Rehabilitation 2006-2013]. / Verordnungshäufigkeit und Inanspruchnahme von sport- und bewegungstherapeutischen Leistungen in der kardiologischen Rehabilitation 2006­2013.

PURPOSE: Physical exercise interventions are well accepted and widely used in cardiac rehabilitation programs. To ensure long-lasting effects on physical fitness and the maintenance of work ability a subsequent transfer to rehabilitation sport programs following cardiac rehabilitation is intended in a timely manner. The aim of the present study is to evaluate prescription and utilization rates of rehabilitation sport programs following cardiac rehabilitation. METHODS: The present paper analyzes referral rates and the actual utilization of those programs in patients who had a cardiac rehabilitation in the years 2006-2013 using insurance data of the German pension fund. RESULTS: Overall, reductions in the prescription of rehabilitation sport programs can be observed. In 2013 55.7% (m) and 62.6% (w) of patients received a prescription for rehabilitation sport programs following cardiac rehabilitation. In contrast to declining prescription rates from 64.2 to 55.7% (m) and 68.0 to 62.6% (w) an increase in sports participation between 3-7% can be observed. CONCLUSION: Overall, participation rates between 9.7% and 22.5% (2012) seem not sufficient to promote long-term physical activity behavior change. Next to our evaluation, determinants and barriers for program participation should be investigated.

[Exercise on Prescription - Patients' Perceptions on Effectiveness and Change in Physical Activity Behavior]. / Wirksamkeit des Rezepts für Bewegung aus Patientensicht ­ die ärztliche Beratung und Handlungsabsichten/-konsequenzen nach erfolgter Rezeptverschreibung.

BACKGROUND: So far physical activity counseling and exercise referral in primary health care are not well established Germany. The exercise referral scheme "Rezept für Bewegung" ("exercise on prescription", "EoP") represents an appropriate tool. The initiative aims to reinforce the physicians' verbal advice via the written prescription. The aim of this study was to assess patients' perceptions of the counseling and their self-reported intention to increase their level of physical activity. METHODS: 3.9 ±â€Š1.0 months after physical activity counseling and referral 173 patients were invited to fill out a 17-item self-administered questionnaire regarding counseling satisfaction and the impact on physical activity behavior. Study participants were recruited through 12 medical offices in 8 areas of the sports association in Hessen. RESULTS: Data of 51 patients (aged 56.1 ±â€Š13.3; 35 female) were included in the evaluation. Almost 2/3 of patients reported ≤ 60 min/week physical activity prior to counseling. 63 % of the interviewees rated the counseling good to very good. Following the counseling more than 1/2 of the respondents attended a course at a sports club and 51 % increased their physical activity in daily life. Overall satisfaction with counseling was associated with higher rates of sports participation OR 3.16 (95 % CI 1.07 - 9.33). 49 % of the respondents wished more support from their health insurance to find an appropriate course. DISCUSSION: "EoP" may be effective in raising patients' awareness for exercise and health and in increasing participation in physical activity.

[Diabetes Mellitus in the Medical Rehabilitation - Use of Rehabilitation Services During 2006-2013]. / Diabetes Mellitus in der medizinischen Rehabilitation ­ Inanspruchnahme rehabilitativer Maßnahmen im Zeitraum 2006­2013.

BACKGROUND AND AIMS: Over the last years the prevalence of diabetes mellitus (DM) has risen. Due to the disease pattern an increasing importance of rehabilitation services is assumed as well. This article contributs to the debate by analyising the use of medical rehabilitations from 2006 to 2013. METHODS: The secondary data analysis is based on a scientific use file. DM is defined according to ICD-10 (E10-E14). The trends stratified by age and gender are displayed crude and standardized per 100.000. The use will be correlated with the population-based prevalence on the level of federal states. RESULTS: The standardized use rose from 2006 to 2013 in men from 170 to 204.4 and woman from 99 to 123.6 per 100.000. While it declined for people under 60 years old, it rose by about 80% in the age group of the 60-64 year-olds. The use correlated positively (r=0.64) with the population-based prevalence. CONCLUSION: As a result of increasingly late retierment, the importance of rehabilitation services in people with DM incesases.

Functional muscle asymmetries and laterality in Latin American formation dancers.

BACKGROUND: Despite the high popularity of Latin American dance and the specific movement patterns characteristic of this dance discipline, studies on the physical effects of these dance style specific movement patterns are still lacking. OBJECTIVE: The purpose of the present study is to analyze strength level differences and shortening of relevant muscle groups resulting from formation dance, taking performance standard and gender into consideration. Furthermore, the correlation between the findings of muscle function tests (MFT) and the occurrence of lumbar spine complaints is evaluated. METHODS: A total of 66 participants (m: n= 31, f: n= 35) volunteered for this cross-sectional study (examination group, n= 39, m: n= 19, f: n= 20). The control group consisted of n= 27 participants (m: n= 12, f: n= 15). Besides isometric maximal strength tests (Digi Max system, mechaTronic), relevant muscle groups were examined for shortenings (hip flexors, hamstrings). RESULTS: The male participants in dance sport reached a significantly higher strength level in the muscles of the spine region (p= 0.011) than the participants of the control group. The female elite dance athletes developed a significantly higher strength level in the knee flexors on the right side than the dancers of the advanced group (NL) (p= 0.021). At that, muscle shortening were observed that seem to be specific to dance sport. In addition, gender specific differences were observed both in strength levels and in tendency to shortenings. CONCLUSION: The specific requirements profile of Latin American formation dance seems to produce affects in the form of muscular imbalance on both sides of the body. These differences of muscular status were mainly observed between dance sport competitors and non-dancers rather than between performance levels. Future investigations with higher numbers of participants would be necessary here.

Selecting and defining indicators for diabetes surveillance in Germany.

Mainly because of the large number of people affected and associated significant health policy implications, the Robert Koch Institute (RKI) is developing a public health surveillance system using diabetes as an example. In a first step to ensure long-term and comparable data collection and establish efficient surveillance structures, the RKI has defined a set of relevant indicators for diabetes surveillance. An extensive review of the available literature followed by a structured process of consensus provided the basis for a harmonised set of 30 core and 10 supplementary indicators. They correspond to the following four fields of activity: (1) reducing diabetes risk, (2) improving diabetes early detection and treatment, (3) reducing diabetes complications, (4) reducing the disease burden and overall costs of the disease. In future, in addition to the primary data provided by RKI health monitoring diabetes surveillance needs to also consider the results from secondary data sources. Currently, barriers to accessing this data remain, which will have to be overcome, and gaps in the data closed. The RKI intentends to continuously update this set of indicators and at some point apply it also to further chronic diseases with high public health relevance.

First results from the study 'Disease knowledge and information needs - Diabetes mellitus (2017)'.

Very little research has been undertaken into what people in Germany know about diabetes, the information they may require about the condition, where they look for such information and how they rate the information currently available. In 2017, the Robert Koch Institute (RKI) carried out a nationwide telephone survey aimed at answering these questions. The study entitled 'Disease knowledge and information needs - Diabetes mellitus (2017)' focused on people aged at least 18 years. A total of 2,327 people without diabetes and 1,479 people with diagnosed diabetes were interviewed for the study. First results show that 56.7% of people without diabetes and 92.8% of those with diabetes rate their knowledge about the condition as 'very good' or 'good'. People without diabetes were found to have the strongest need for information in terms of 'lifestyle changes, health promotion and disease prevention', whereas respondents with diabetes stressed the strongest need for information about 'treatment and therapy'. Almost a third of respondents without diabetes have actively sought information about diabetes at least once, mostly via print media. Patients with diabetes stated that their general practitioner was their most frequent source of information about the condition. In both groups, about half of respondents reported that they found it difficult to judge the trustworthiness of the information published in the media about diabetes. The results of the study form part of the German National Diabetes Surveillance, which is coordinated by the RKI. The data are also intended to be used by the Federal Centre for Health Education to develop a strategy to improve the information provided about diabetes.

[Regionalization of federal health reporting using the example of diabetes surveillance : Aims and results of the discussion between the Robert Koch Institute and the federal states]. / Regionalisierung der Gesundheitsberichterstattung am Beispiel Diabetes-Surveillance : Ziele und Ergebnisse des Bund-Länder-Gesprächs am Robert Koch-Institut.

Insufficiently treated diabetes mellitus can lead to severe comorbidities. National and international analyses show a continuous increase in diabetes prevalence over the last decades. Currently, an indicator-based national diabetes surveillance system is implemented at the Robert Koch Institute (RKI) to monitor and report on diabetes development on the basis of available primary and secondary data. The aim of the meeting was to go into deeper discussions and to integrate expectations and expertise of the federal states into the design of the national surveillance system. A close collaboration between the RKI and the federal states is intended.

[Integration of secondary data into national diabetes surveillance : Background, aims and results of the secondary data workshop at the Robert Koch Institute]. / Integration von Sekundärdaten in die Nationale Diabetes-Surveillance : Hintergrund, Ziele und Ergebnisse des Sekundärdaten-Workshops am Robert Koch-Institut.

Epidemiological data provide evidence that diabetes mellitus is a highly relevant public health issue in Germany as in many other countries. The Robert Koch Institute (RKI) is in the process of building a national diabetes surveillance system that is aimed at establishing indicator-based public health monitoring of diabetes population dynamics using primary and secondary data. The purpose of the workshop was to conduct an inventory of available secondary data sources and to discuss data contents, data access, data analysis examples in addition to the options for ongoing data use for diabetes surveillance.

Diabetes Surveillance in Germany - Background, concept and prospects.

Diabetes mellitus is a chronic disease that is associated with serious health problems and high costs. According to estimates gained from nationally representative health surveys conducted by the Robert Koch Institute (RKI), 4.6 million adults aged 18 to 79 suffer from diabetes in Germany. In addition, around 1.3 million adults have undetected diabetes. A surveillance system is currently being established at the RKI in order to gather the data sources available on diabetes in Germany and to provide reliable and comparable findings on time trends covering the frequency, progress of treatment, prevention and care of the disease. Next to identifying trends, diabetes surveillance also needs to detect differences in epidemiology that are related to social status or geographic region. Diabetes surveillance at the RKI is being undertaken in close cooperation with stakeholders involved in science, health-care provision, health policy and health-system self-governance. Furthermore, its progress is accompanied by an interdisciplinary scientific advisory board. Diabetes surveillance involves the following key elements: 1) the development of a research-based conceptual framework that uses indicators to appropriately measure developments in the disease; 2) the establishment of standards for the use of existing data sources and the identification of barriers to data usage and gaps in the data; and 3) the implementation of focused health reporting that is geared towards the target group. In addition to policy consultations, diabetes surveillance must guarantee the provision of timely and continuous information to the public together with the Federal Agency for Health Education. The implementation of a diabetes surveillance in Germany should act as a model and serve as a basis with which to establish the surveillance of other non-communicable diseases. In principle, indicator-based diabetes monitoring at the population level can be viewed as providing the body for evidence-based policy consultation and focused health policy. In turn, this should enable the implementation of effective disease prevention measures and high-quality care for all groups within the population.

Real-time visual activity feedback for physical activity improvement in breast and colon cancer patients.

The study aims to evaluate the effects and feasibility of a biofeedback device for physical activity (PA) improvement in breast and colon cancer patients. Daily PA of 19 cancer patients was measured by accelerometry (ActiGraph, GT1 M). Additionally, patients wore a motion sensor with real-time visual activity feedback (ActiSmile). Counts per minutes (cpm) and moderate to vigorous physical activity (MVPA) were calculated and patients' activity data were compared to PA of 20 age-matched healthy controls. Baseline PA of patients was lower compared to controls. Following visual real-time feedback cancer patients increased cpm by 21% (p = .002) and MVPA by 9% (p = .007) compared to baseline measurement. PA levels in cancer patients obtained with visual feedback became almost equal compared to age-matched healthy controls: cpm (301; IQR 170 vs. 299; IQR 111), MVPA (36; IQR 23 vs. 41; IQR 25 min/day). Activity biofeedback seems to be feasible to induce changes in patients' PA behaviour.