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People-centered care and patients' beliefs about medicines and adherence: A cross-sectional study. Heliyon 2023; 9:e15795. [PMID: 37251820 PMCID: PMC10208933 DOI: 10.1016/j.heliyon.2023.e15795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/21/2023] [Accepted: 04/21/2023] [Indexed: 05/31/2023] Open
Abstract
Introduction People-centered care (PCC) strategies are believed to improve overall health outcomes. Medicines use is essential for the treatment of many patients with chronic conditions. Non-adherence rates are high and result in poor health outcomes, and increased healthcare utilization and costs. This study aimed to explore the relationship between PCC and adherence to medicines for persons with chronic medicines use, as well as the extent to which patients' beliefs about medicines are influenced by their level of perceived PCC. Methods A cross-sectional survey design was performed with adults using at least 3 chronic medicines per day. To measure the degree of medicines adherence, patients' ideas about medication, and PCC, four validated questionnaires were used: The Medication Adherence Report Scale (MARS-5), Beliefs about medicines questionnaire (BMQ), Client-Centered Care Questionnaire (CCCQ) and the Shared Decision Making Questionnaire (SDM-Q-9). Socio-demographics, health status, and drug-related burden were questioned as potential factors to impact the relationship between PCC and adherence. Results A sample of 459 persons participated. The mean score on the CCCQ (adjusted to pharmacotherapy) was 52.7 on 75 (sd = 8.83, range [18-70]). The top 20% scored 60 or more, the 20% lowest scores were 46 or less. Adherence levels were high, with a mean score of 22.6 on 25 on the MARS-5, and 88% scoring 20 or more. An increase in PCC corresponded to a higher chance of medicines adherence (OR 1.07, 95%CI [1.02-1.12]), corrected for age, the burden due to chronic diseases, the impact of side effects on daily life, and participants' beliefs about medicines. PCC showed positive correlations with the necessity of medicines use (r = 0.1, p = 0.016) and the balance between necessity and concerns (r = 0.3, p < 0.001); and negative correlations with levels of concerns (r = -0.3, p < 0.001) and scores on harmfulness (r = -0.3, p < 0.001) and overuse of medicines (r = -0.4, p < 0.001). Conclusion Patients with chronic medicine use perceived an average high level of people-centeredness in the pharmaceutical care they received. This PCC was weakly positively associated with adherence to their medicines. The higher PCC was evaluated, the more patients believed in the necessity of the medicines use and the better the balance between necessity and concerns. The people-centeredness of pharmaceutical care showed several shortcomings and can still be improved. As such, healthcare providers are advised to actively engage in PCC, and not to wait passively for information provided by the patient.
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Efficacy, feasibility and acceptability of the OptiMEDs tool for multidisciplinary medication review in nursing homes. Arch Gerontol Geriatr 2021; 95:104391. [PMID: 33819776 DOI: 10.1016/j.archger.2021.104391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/04/2021] [Accepted: 03/09/2021] [Indexed: 12/28/2022]
Abstract
AIM(S) Exploring efficacy, feasibility and acceptability of a complex multifaced intervention (OptiMEDs) supporting multidisciplinary medication reviews in Belgian nursing homes (NHs). METHODS A pilot study in 2 intervention, 1 control NH was held, involving dementia and non-dementia NH residents (>65 years). OptiMEDs provided automated assessment of possible inappropriate medications (PIMs) and patient-specific nurse observation lists of potential side-effects. Medication changes were evaluated one month after the medication review. Feasibility and acceptability was collected via surveys among the health-care professionals. Trial registration NCT04142645, 31/10/2019. RESULTS Participants (n = 148, n = 100 in the intervention NHs) had a mean age of 87.2 years, with 75.0% females and 49.3% non-dementia patients. Prevalence of PIM use was 84.7% and of potential medication side-effects 84.5%, (range 1-19 per resident). One month after the intervention, the medication use decreased in 35.8% and PIM use in 25.9% of surviving intervention NHresidents (n = 88). GPs changed more medications when side-effects were observed (42% when side-effects present versus 12% when no side-effects, p = 0.019). Median workload for nurses was 45 min, 20 for pharmacists, and 8 for GPs. User satisfaction for the OptiMEDs tool was high (n = 33, median score of 8, IQR 6 -8), with GPs (n = 19) showing the highest appreciation. Nurses (n = 9) reported a median score on the System Usability Scale of 70 (IQR 55 - 72), with lower scores for learnability aspects. CONCLUSION The OptiMEDs intervention was feasible and user-friendly, showing decreases in the medication and PIM use; without affecting patient safety. A cluster-randomized trial is needed to explore impact on patient-related outcomes.
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European repository of explicit criteria of potentially inappropriate medications in old age. Geriatr Gerontol Int 2018; 18:1293-1297. [DOI: 10.1111/ggi.13331] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 02/26/2018] [Accepted: 03/06/2018] [Indexed: 11/28/2022]
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Medication use in a cohort of newly admitted nursing home residents (Ageing@NH) in relation to evolving physical and mental health. Arch Gerontol Geriatr 2018; 75:202-208. [PMID: 29353187 DOI: 10.1016/j.archger.2018.01.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 12/14/2017] [Accepted: 01/13/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND Medication use is high among nursing home (NH) residents, but there is a lack of longitudinal studies, determining medication use at admission and its evolution over time. AIM Describing the evolution of the medication use two years after entering a NH, compared to the baseline observations and exploring the relation to the physical and mental health. METHODS Data from the observational prospective Ageing@NH study, based on an inception cohort of newly admitted residents at NHs (65+) was used, selecting those consenting and with medication chart available. Information about socio-demographic, functional and mental characteristics, as well as medication use, was collected at baseline, year 1 and year 2. RESULTS Medication chart was available for n = 741 at baseline (mean age 83.8, 66% female), and for n = 342 residents in year 2. The mean number of total medications increased from 8.9 to 10.1 (p-value < 0.001). Polypharmacy was high, with an increase in extreme polypharmacy from 23% to 32%. The biggest increase was noted in the respiratory (from 17% to 27%) and alimentary medications (from 80% to 87%). Cardiovascular medication use in year 2, was lower in those with stable high dependency (77%) and those evolving from low to high dependency (79%), than those with stable low dependency (89%) (p < 0.025). For residents with or evolving to dementia symptoms, decline in most medication groups was observed, especially in pain and sleeping medications, while antipsychotics use increased. CONCLUSION Although medication use was high, signs of deprescribing were noted when the physical and mental health of the residents declined.
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[A qualitative exploration of the chronic use of psychotropic drugs in nursing homes]. Tijdschr Gerontol Geriatr 2017; 48:177-186. [PMID: 28688072 DOI: 10.1007/s12439-017-0223-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Although guidelines put forward non-pharmacological therapies and advise against the chronic use of psychotropic drugs, these are still being prescribed regularly in Belgian nursing homes. GOAL To explore the reasons for initiation, continuation and cessation of psychotropic drug treatment of elderly with dementia and behavioral problems, residing in the nursing home. METHOD Twenty-seven interviews from an earlier project were used, in which a semi-structured interview was conducted with the nursing staff, the physicians and the caretakers of eleven randomly selected residents from three nursing homes. A qualitative analysis was performed by three independent researchers according to 'The Qualitative Analysis Guide of Leuven (QUAGOL)'. A first analysis focused on the process of initiation, continuation and cessation of medication. A second analysis compared the different participants of each interview and looked for similarities and differences. RESULTS Seventeen codes were developed for four themes: (1) To initiate, to continue or to cease?; (2) Behavior; (3) Therapy; and (4) Alternatives. The reasons for initiating psychotropic drugs were reducing disruptive behavior and improving the quality of life of the resident. A comparison between the interviewed showed that psychotropic drugs were initiated at the request of the nursing staff. Neither doctors nor nurses considered the monitoring of the drug therapy their task, and tended to pass on this responsibility. Once psychotropic drugs were started, the treatment was chronic but remained part of a dynamic process in which a balance was sought between benefits and adverse effects. More insights into the behavior of the resident led to a better treatment of the behavioral problems. CONCLUSION Nurses play an important role in the initiation and continuation of psychotropic drugs. Physicians should take a more active role in the process of indication and monitoring of psychopharmaceuticals. Discontinuation of psychotropic drugs and the use of non-pharmacological alternatives are important bottlenecks in nursing homes. Education and training, updated practice guidelines, appropriate research, professionalization and management elements can, in a complex interaction, change this situation for the better.
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A quality improvement initiative on the use of psychotropic drugs in nursing homes in Flanders. Acta Clin Belg 2017; 72:163-171. [PMID: 28206874 DOI: 10.1080/17843286.2017.1287230] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Government-funded quality improvement projects aimed to reduce the high psychotropic medication use in Belgian long-term care settings. DESIGN A pilot project (2013-2014) with a pre-post and follow-up intervention design. METHODS Two nursing homes received three educational courses. In the intervention nursing home (INH) additionally, a transition towards person-centred care through professional support was applied. Drug use was recorded at baseline, after 10 months (post) and after 22 months (follow-up), and coded into the Anatomical Therapeutic Chemical classification. RESULTS At baseline, the INH residents' (n = 118) mean age at baseline was 82 years, with 71% females. The control nursing home residents' (CNH, n = 275) mean age was 82.7 years, with 75% females. At baseline, mean drug use was 9 (range 1-21) and 8 (range 0-20), predominantly with a high proportion of psychotropic drug users of 73 and 65%, in INH and CNH respectively. At the time of post-measurement, only the proportion of hypno-sedative users decreased significantly in the INH (by 13%, p = 0.048). No significant changes were found in the CNH. At time of the follow-up, the proportion of hypno-sedative (51% vs. 31%; p = 0.005) and antidepressant users (42% vs. 25%, p = 0.007) decreased significantly in the INH. The decrease of antipsychotic drug users was less distinct. In the CNH, the proportion of hypno-sedative, antidepressant and overall psychotropic drug users did not change significantly. CONCLUSION This quality improvement initiative led to a significant decrease in the use of psychotropic drugs in the INH, even after 1-year follow-up. Education only had a limited effect.
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Anticholinergic Exposure in a Cohort of Adults Aged 80 years and Over: Associations of the MARANTE Scale with Mortality and Hospitalization. Basic Clin Pharmacol Toxicol 2017; 120:591-600. [PMID: 27995743 DOI: 10.1111/bcpt.12744] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/02/2016] [Indexed: 12/25/2022]
Abstract
Anticholinergics are frequently prescribed for older adults and can lead to adverse drug events. The novel MARANTE (Muscarinic Acetylcholinergic Receptor ANTagonist Exposure) scale measures the anticholinergic exposure by incorporating potency and dosages of each medication into its calculations. The aims were to assess prevalence and intensity of the anticholinergic exposure in a longitudinal cohort study of community-dwelling patients aged 80 years and over (n = 503) and to study the impact on mortality and hospitalization. Chronic medication use at baseline (November 2008-September 2009) was entered and codified with the Anatomical Therapeutic Chemical classification. Time-to-event analysis until first hospitalization or death was performed at 18 months after inclusion, using Kaplan-Meier curves. Cox regression was performed to control for covariates. Mean age was 84 years (range 80-102), and mean number of medications was 5 (range 0-16). Prevalence of anticholinergic use was 31.8%, with 9% taking ≥2 anticholinergics (range 0-4). Main indications for anticholinergics were depression, pain and gastric dysfunction. Female gender, the level of multi-morbidity and the number of medications were associated with anticholinergic use. Mortality and hospitalization rate were 8.9% and 31.0%, respectively. After adjustment for the level of multi-morbidity and medication intake, multi-variable analysis showed increased risks of mortality (HR 2.3, 95% CI: 1.07-4.78) and hospitalization (HR 1.7; 95% CI: 1.13-2.59) in those with high anticholinergic exposure. The longitudinal study among Belgian community-dwelling oldest old demonstrated great anticholinergic exposure, which was associated with increased risk of mortality and hospitalization after 18 months.
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A Novel Scale Linking Potency and Dosage to Estimate Anticholinergic Exposure in Older Adults: the Muscarinic Acetylcholinergic Receptor ANTagonist Exposure Scale. Basic Clin Pharmacol Toxicol 2017; 120:582-590. [DOI: 10.1111/bcpt.12699] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 11/01/2016] [Indexed: 12/13/2022]
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Abstract
OBJECTIVES The psychotropic education and knowledge test for nurses in acute geriatric care (PEAK-AC) measures knowledge of psychotropic indications, doses and adverse drug reactions in older inpatients. Given the low internal consistency and poor discrimination of certain items, this study aims to adapt the PEAK-AC, validate it in the nursing home setting and identify factors related to nurses' knowledge of psychotropics. METHOD This study included nurses and nurse assistants employed by nursing homes (n = 13) and nursing students at educational institutions (n = 5) in Belgium. A Delphi technique was used to establish content validity, the known groups technique for construct validity (nrespondents = 550) and the test-retest procedure for reliability (nrespondents = 42). Internal consistency and item analysis were determined. RESULTS The psychotropic education and knowledge test for nurses in nursing homes (PEAK-NH) (nitems = 19) demonstrated reliability (κ = 0.641) and internal consistency (Cronbach's α = 0.773). Significant differences between-group median scores were observed by function (p < 0.001), gender (p = 0.019), educational background (p < 0.001), work experience (p = 0.008) and continuing education (p < 0.001) for depression, delirium and pharmacotherapy topics. Items were acceptably difficult (nitems = 15) and well-functioning discriminators (nitems = 17). Median PEAK-NH score was 9/19 points (interquartile range 6-11 points). Respondents' own estimated knowledge was related to their PEAK-NH performance (p < 0.001). CONCLUSION The PEAK-NH is a valid and reliable instrument to measure nurses' knowledge of psychotropics. These results suggest that nurses have limited knowledge of psychotropic use in nursing homes and are aware of their knowledge deficits. The PEAK-NH enables educational initiatives to be targeted and their impact on nurses' knowledge to be tracked.
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Too many, too few, or too unsafe? Impact of inappropriate prescribing on mortality, and hospitalization in a cohort of community-dwelling oldest old. Br J Clin Pharmacol 2016; 82:1382-1392. [PMID: 27426227 DOI: 10.1111/bcp.13055] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/09/2016] [Accepted: 06/18/2016] [Indexed: 12/15/2022] Open
Abstract
AIMS Little is known about the impact of inappropriate prescribing (IP) in community-dwelling adults, aged 80 years and older. The prevalence at baseline (November 2008September 2009) and impact of IP (misuse and underuse) after 18 months on mortality and hospitalization in a cohort of community-dwelling adults, aged 80 years and older (n = 503) was studied. METHODS Screening Tool of Older People's Prescriptions (STOPP-2, misuse) and Screening Tool to Alert to Right Treatment (START-2, underuse) criteria were cross-referenced and linked to the medication use (in Anatomical Therapeutic Chemical coding) and clinical problems. Survival analysis until death or first hospitalization was performed at 18 months after inclusion using Kaplan-Meier, with Cox regression to control for covariates. RESULTS Mean age was 84.4 (range 80-102) years. Mean number of medications prescribed was 5 (range 0-16). Polypharmacy (≥5 medications, 58%), underuse (67%) and misuse (56%) were high. Underuse and misuse coexisted in 40% and were absent in 17% of the population. A higher number of prescribed medications was correlated with more misused medications (rs = .51, P < 0.001) and underused medications (rs = .26, P < 0.001). Mortality and hospitalization rate were 8.9%, and 31.0%, respectively. After adjustment for number of medications and misused medications, there was an increased risk of mortality (HR 1.39, 95% CI 1.10, 1.76) and hospitalization (HR 1.26, 95% CI 1.10, 1.45) for every additional underused medication. Associations with misuse were less clear. CONCLUSION IP (polypharmacy, underuse and misuse) was highly prevalent in adults, aged 80 years and older. Surprisingly, underuse and not misuse had strong associations with mortality and hospitalization.
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Abstract
OBJECTIVES Polypharmacy is highly prevalent among older people (65+), but little is known on the medication use of the oldest old (80+). This study explores the medication use of the Belgian community-dwelling oldest old in relation to their demographic, clinical and functional characteristics. METHODS Baseline data was used from the BELFRAIL study; a prospective, observational population-based cohort of Belgian community-dwelling patients (80+). General practitioners recorded clinical problems and medications. Medications were coded by the Anatomic Therapeutic Chemical classification. RESULTS Participants' (n = 503) mean age was 84.4 years (range 80-102) and 61.2% was female. Median chronic medication use was 5 (range 0-16). Polypharmacy (≥5 medications) was high (57.7%), with excessive polypharmacy (≥10 medications) in 9.1%. Most commonly used medication group were antithrombotics, but also benzodiazepines and antidepressants were frequently consumed. Demographics related to polypharmacy (univariate analysis) were female gender, low education and moderate alcohol use. Age, care dependency and cognitive impairment showed no association with polypharmacy. In multivariate analysis, the predominant association with polypharmacy was found for multimorbidity (OR 1.78, 95% CI 1.5-2.1), followed by depression (OR 3.7, 95% CI 4.4-9.7) and physical activity (OR 0.8, 95% CI 0.7-0.9). CONCLUSIONS Polypharmacy was high among Belgian community-dwelling oldest old (80+). Determinants of polypharmacy were interrelated, but dominated by multimorbidity. On top of the burden of multimorbidity, polypharmacy was independently associated with less physical activity, and with depressive symptoms.
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Mortality, hospitalisation, institutionalisation in community-dwelling oldest old: The impact of medication. Arch Gerontol Geriatr 2016; 65:9-16. [PMID: 26913791 DOI: 10.1016/j.archger.2016.02.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 02/08/2016] [Accepted: 02/13/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND High drug use and associated adverse outcomes are common in older adults. This study investigates association of medication use with mortality, hospitalisation, and institutionalisation in a cohort of community-dwelling oldest old (aged 80 and over). METHODS Baseline data included socio-demographic, clinical, and functional characteristics, and prescribed medications. Medications were coded by the Anatomic Therapeutic Chemical classification. Survival analysis was performed at 18 months after inclusion using Kaplan-Meier, and multivariate analysis with Cox regression to control for covariates. RESULTS Patients' (n=503) mean age was 84.4 years (range 80-102), and 61.2% was female. The median medication use was 5 (0-16). The mortality, hospitalisation, and institutionalisation rate were 8.9%, 31.0%, and 6.4% respectively. The mortality and hospitalisation group had a higher level of multimorbidity and weaker functional profile. Adjusted multivariate models showed an 11% increased hospitalisation rate for every additional medication taken. No association was found between high medication use and mortality, nor with institutionalisation. A higher association for mortality was observed among verapamil/diltiazem users, hospitalisation was higher among users of verapamil/diltiazem, loop diuretics and respiratory agents. Institutionalisation was higher among benzodiazepines users. CONCLUSION In the community-dwelling oldest old (aged 80 and over), high medication was clearly associated with hospitalisation, independent of multimorbidity. The association with mortality was clear in univariate, but not in multivariate analysis. No association with institutionalisation was found. The appropriateness of the high medication use should be further studied in relation to mortality, hospitalisation, and institutionalisation for this specific age group.
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Impact of medication use on mortality in Belgian community-dwelling oldest Old. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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P172: The Psychotropic Knowledge Test: adapted and refined for the nursing home setting. Eur Geriatr Med 2014. [DOI: 10.1016/s1878-7649(14)70347-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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WHO European Childhood Obesity Surveillance Initiative 2008: weight, height and body mass index in 6-9-year-old children. Pediatr Obes 2013; 8:79-97. [PMID: 23001989 DOI: 10.1111/j.2047-6310.2012.00090.x] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 07/08/2012] [Accepted: 07/17/2012] [Indexed: 11/29/2022]
Abstract
UNLABELLED What is already known about this subject Overweight and obesity prevalence estimates among children based on International Obesity Task Force definitions are substantially lower than estimates based on World Health Organization definitions. Presence of a north-south gradient with the highest level of overweight found in southern European countries. Intercountry comparisons of overweight and obesity in primary-school children in Europe based on measured data lack a similar data collection protocol. What this study adds Unique dataset on overweight and obesity based on measured weights and heights in 6-9-year-old children from 12 European countries using a harmonized surveillance methodology. Because of the use of a consistent data collection protocol, it is possible to perform valid multiple comparisons between countries. It demonstrates wide variations in overweight and obesity prevalence estimates among primary-school children between European countries and regions. BACKGROUND Nutritional surveillance in school-age children, using measured weight and height, is not common in the European Region of the World Health Organization (WHO). The WHO Regional Office for Europe has therefore initiated the WHO European Childhood Obesity Surveillance Initiative. OBJECTIVE To present the anthropometric results of data collected in 2007/2008 and to investigate whether there exist differences across countries and between the sexes. METHODS Weight and height were measured in 6-9-year-old children in 12 countries. Prevalence of overweight, obesity, stunting, thinness and underweight as well as mean Z-scores of anthropometric indices of height, weight and body mass index were calculated. RESULTS A total of 168 832 children were included in the analyses and a school participation rate of more than 95% was obtained in 8 out of 12 countries. Stunting, underweight and thinness were rarely prevalent. However, 19.3-49.0% of boys and 18.4-42.5% of girls were overweight (including obesity and based on the 2007 WHO growth reference).The prevalence of obesity ranged from 6.0 to 26.6% among boys and from 4.6 to 17.3% among girls. Multi-country comparisons suggest the presence of a north-south gradient with the highest level of overweight found in southern European countries. CONCLUSIONS Overweight among 6-9-year-old children is a serious public health concern and its variation across the European Region highly depends on the country. Comparable monitoring of child growth is possible across Europe and should be emphasized in national policies and implemented as part of action plans.
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MRSA surveillance in a rehabilitation centre with liberal isolation policy. BMC Proc 2011. [PMCID: PMC3239600 DOI: 10.1186/1753-6561-5-s6-p180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
Interactions between leptin and insulin have been shown previously, in vitro and in vivo. In this study, we evaluate the associations of leptin levels with insulin secretion and insulin sensitivity in type 2 diabetes. Fasting leptin levels, HbA 1c, glucose, insulin, C-peptide, intact and des-31,32-proinsulin were measured in 100 non-insulin-treated type 2 diabetic patients. Glucose, insulin and C-peptide were measured 2 hours after an oral glucose load. Insulin resistance and beta-cell function were calculated using HOMA. Leptin levels were found to be associated with all measures of beta-cell secretion: with fasting and 2 hours insulin and C-peptide, with intact and des-31,32-proinsulin concentrations, and with beta-cell secretion estimated with HOMA. This association was independent of age and body fat in women, but in men, associations with insulin and C-peptide weakened after controlling for fat mass, whereas those with intact and des-31,32-proinsulin disappeared. Fasting insulin and C-peptide levels were also significant in multiple regression analyses, besides gender and fat mass. Insulin resistance, as assessed by HOMA, was strongly correlated with leptin, also after correction for age and fat mass in both genders. We conclude that, besides fat mass and gender - the main determinants for leptin levels in type 2 diabetic subjects as in healthy subjects - insulin secretion and the degree of insulin resistance also seem to contribute significantly to leptin levels.
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Polymorphisms in the leptin receptor gene, body composition and fat distribution in overweight and obese women. Int J Obes (Lond) 2001; 25:714-20. [PMID: 11360155 DOI: 10.1038/sj.ijo.0801609] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2000] [Revised: 12/06/2000] [Accepted: 01/03/2001] [Indexed: 01/27/2023]
Abstract
OBJECTIVE Leptin is an adipocyte-secreted hormone involved in body weight regulation, acting through the leptin receptor, localised centrally in the hypothalamus as well as peripherally, amongst others on adipose tissue. The aim of this study was to evaluate whether polymorphisms in the leptin receptor (LEPR) gene were related to obesity and body fat distribution phenotypes, such as waist and hip circumferences and the amount of visceral and subcutaneous fat. METHODS Three known LEPR polymorphisms, Lys109Arg, Gln223Arg and Lys656Asn, were typed on genomic DNA of 280 overweight and obese women (body mass index (BMI)>25), aged 18-60 y. General linear model (GLM) analyses were performed in 198 pre- and 82 postmenopausal women, adjusting the data for age and menopausal state, plus fat mass for the fat distribution phenotypes. RESULTS No associations were found between the LEPR polymorphisms and BMI or fat mass. In postmenopausal women, carriers of the Asn656 allele had increased hip circumference (P=0.03), total abdominal fat (P=0.03) and subcutaneous fat (P=0.04) measured by CT scan. Total abdominal fat was also higher in Gln223Gln homozygotes (P=0.04). Also in postmenopausal women, leptin levels were higher in Lys109Lys homozygotes (P=0.02). CONCLUSION In conclusion, polymorphisms in the leptin receptor gene are associated with levels of abdominal fat in postmenopausal overweight women. Since body fat distribution variables were adjusted for fat mass, these results suggest that DNA sequence variations in the leptin receptor gene play a role in fat topography and may be involved in the predisposition to abdominal obesity.
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Abstract
Plasminogen activator inhibitor type 1 (PAI-1), an inhibitor of fibrinolysis and an important and independent cardiovascular risk factor, has been shown to be elevated in obesity and type 2 diabetes. Recent study results have suggested that adipose tissue--visceral fat in particular--could play an important role in the fibrinolytic process.In order to assess the specific role of this fat distribution, we measured PAI-1 activity (AU/ml) and visceral fat (CT-scan at level L4-L5) in 2 groups of 30 overweight and obese diabetic and overweight and obese non-diabetic women. Subjects were matched for age, weight, body mass index, fat mass and total abdominal fat. Visceral adipose tissue and PAI-1 were significantly higher in diabetic women (p = 0.022 and p = 0.004 respectively) than in non-diabetic patients. Visceral fat correlated significantly with PAI-1 activity, even after correction for insulin and triglycerides (r = 0.28, p = 0.034). Stepwise regression analysis showed visceral fat as the most important determinant factor for PAI-1 in the whole group and in the non-diabetic group. In the diabetic group, fasting insulin was the most important determinant. These results show that visceral fat is more important than BMI or total body fat in the determination of PAI-1 levels. Furthermore, the increased amount of visceral fat in type 2 diabetics may contribute to the increase of PAI-1 activity levels and the subsequent increased risk for thrombovascular disease, regardless of BMI and total fatness.
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Leptin receptor gene polymorphisms are associated with insulin in obese women with impaired glucose tolerance. J Clin Endocrinol Metab 2001; 86:3227-32. [PMID: 11443193 DOI: 10.1210/jcem.86.7.7682] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Leptin receptors are present on beta-cells as well as on muscle and fat cells, thus enabling leptin to modulate both insulin secretion and insulin action. Leptin inhibits especially the glucose-stimulated insulin secretion from pancreatic cells. The leptin receptor (LEPR) gene could thus play a role in the regulation of glucose and insulin after an oral glucose load. Therefore, the relationship between LEPR polymorphisms and glucose and insulin response to an oral glucose tolerance test (OGTT) was investigated. Three LEPR polymorphisms (Lys(109)Arg, Gln(223)Arg, and Lys(656)Asn) were typed on genomic DNA of 358 overweight and obese women, aged 18-60 yr. Based on an OGTT, 269 subjects were defined with normal glucose tolerance, and 89 with impaired glucose tolerance (IGT). Associations between genotypes and glucose metabolism were analyzed with a general linear models procedure in pre- and postmenopausal women separately, after adjusting the data for age and fat mass. In postmenopausal women with IGT (n = 24), associations were found with Lys(109)Arg and Lys(656)Asn for fasting insulin (P = 0.05) and with Lys(109)Arg and Gln(223)Arg for the insulin response to an OGTT (P < 0.02). In the same group, trends were found with Lys(656)Asn for fasting glucose as well as in response to the OGTT. In premenopausal women with IGT (n = 65), associations were found with Lys(109)Arg and Lys(656)Asn for overall glucose response to the glucose load. In contrast, no associations with insulin or glucose were found in women with normal glucose tolerance. In conclusion, these data indicate that LEPR polymorphisms are associated with insulin and glucose metabolism in women with impaired glucose homeostasis.
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Abstract
Leptin is a mainly adipocyte-secreted protein that was discovered 5 years ago. Most of the research following this discovery focused on the role of leptin in body weight regulation, aiming to illuminate the pathophysiology of human obesity. However, more and more data are emerging that leptin is not only important in the regulation of food intake and energy balance, but that it also has a function as a metabolic and neuroendocrine hormone. It is now clear that it is especially involved in glucose metabolism, as well as in normal sexual maturation and reproduction. Besides this, interactions with the hypothalamic-pituitary-adrenal, thyroid and GH axes and even with haematopoiesis and the immune system have also been described. It has been shown that leptin secretion by the adipocyte is partly regulated by other hormones, such as insulin, cortisol, and sex steroids, mainly testosterone. Also, other hormones like thyroid hormone and GH are possibly involved in leptin synthesis. Leptin itself exerts effects on different endocrine axes, mainly on the hypothalamic-pituitary-gonadal axis and on insulin metabolism, but also on the hypothalamic-pituitary-adrenal, thyroid and GH axes. Leptin may thus be considered a new endocrine mediator, besides its obvious role in body weight regulation.
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Associations of leptin with body fat distribution and metabolic parameters in non-insulin-dependent diabetic patients: no effect of apolipoprotein E polymorphism. Metabolism 2000; 49:724-30. [PMID: 10877196 DOI: 10.1053/meta.2000.6255] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Leptin levels have been shown previously to be associated with anthropometric parameters such as the body mass index (BMI), total body fat, and subcutaneous fat. Since apolipoprotein E (apoE) polymorphism is known to be a genetic marker affecting the relationship between certain anthropometric and metabolic parameters, we evaluated whether the leptin level and/or associations between the leptin level and body composition in non-insulin-dependent diabetic patients could be determined by apoE polymorphism. In 171 type 2 diabetic patients (105 male and 66 female), body composition (BMI, waist to hip ratio [WHR], fat mass, and visceral fat) was measured and fasting blood samples were obtained to determine the apoE genotype, leptin, glucose, and insulin levels, and the lipid profile. The mean leptin level for the whole group was 11.7 +/- 9.3 ng/mL, with a significant difference (P < .001) between men (7.1 +/- 4.9 ng/mL) and women (19.0 +/- 10.1 ng/mL). No difference was found for leptin levels or anthropometric variables between the 3 different apoE genotypes (E3/E3 homozygotes, E2 carriers, and E4 carriers). Only low-density lipoprotein (LDL) cholesterol was significantly different between the 3 apoE subgroups. The correlations of leptin with anthropometric variables, especially visceral fat, tended to be different between the 3 apoE groups, but this was not independent and no effect was found after controlling for the other parameters in the model. A multiple regression model containing gender, subcutaneous fat, fasting glucose, triglycerides, and high-density lipoprotein (HDL) cholesterol explained 81% of the variance in leptin levels. We conclude that apoE polymorphism has no effect on the leptin level or its associations with other anthropometric and metabolic parameters.
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Gender differences in leptin levels and physiology: a role for leptin in human reproduction. THE JOURNAL OF GENDER-SPECIFIC MEDICINE : JGSM : THE OFFICIAL JOURNAL OF THE PARTNERSHIP FOR WOMEN'S HEALTH AT COLUMBIA 1999; 2:46-51. [PMID: 11252835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Leptin, an adipocyte-derived hormone known to play an important role in body-weight regulation, has been shown to be expressed differentially in men and women. These observations are potentially important for the understanding of differences between men and women in regulation of food intake, weight gain, and body fat distribution. Leptin is also involved in female fertility, especially in pubertal development. It may well be the triggering signal for the onset of puberty in girls. Although the exact mechanisms and interactions with sex steroids are not yet fully established, it is clear that leptin plays a role as an endocrine mediator in sexual development and reproduction.
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Abstract
Leptin levels are strongly related to total body fat. It is however not yet clear if leptin is also related to visceral fat accumulation or not. In this study, we investigated whether leptin is also associated with body fat distribution and if this association is different in men and women. Leptin was measured in 143 obese subjects (118 women and 25 men) with a body mass index (BMI) greater than 28. Also weight, skinfolds, waist-to-hip ratio (WHR), fat mass by bioimpedance analysis (BIA) were measured, and abdominal visceral and subcutaneous fat were determined by CT scan. Leptin levels were significantly related with BMI, with fat mass (in kg and percentage body fat) as measured by BIA and skinfolds, and with total abdominal fat mass and subcutaneous fat measured by CT scan. No association was found with visceral fat, waist circumference or WHR. In men and women separately, however, a correlation with visceral fat existed. After correction for total body fat, the correlation remained significant only with subcutaneous fat in women. Multiple regression analyses pointed out that percentage body fat was the most important determinant of leptin for all subjects, while for women subcutaneous fat was the most important parameter, and for men alone total abdominal fat. These results suggest that subcutaneous fat seems to be an important factor related to leptin levels.
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Left ventricular function changes during pharmacological and physiological interventions and routine activities monitored in healthy volunteers by a portable radionuclide probe (VEST). INTERNATIONAL JOURNAL OF CARDIAC IMAGING 1991; 7:79-87. [PMID: 1795127 DOI: 10.1007/bf01798048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A miniaturized radionuclide cardiac probe incorporated in a semi-rigid plastic chest garment has made ambulatory left ventricular (LV) function evaluation possible, with gated nuclear data being stored on tape together with electrocardiographic data, for subsequent off-line processing. After red blood cell labelling with 555 MBq (15 mCi) 99mTc and standard gated blood pool imaging in 45 degrees LAO, we performed a continuous monitoring of LV function in 20 healthy male volunteers (age range: 22-25 years), in resting control conditions as well as during activities (standing, walking, climbing stairs) and after interventions (isosorbide dinitrate intake, Trendelenburg position, inflation of cuffs around the thighs). VEST-monitoring proved to be a reliable method that gave reproducible results: changes of ejection (EF) in basal conditions were lower than 5% in 95% of the patients. Changes in LV function caused by daily activities were easily demonstrated. While standing effected no significant EF changes, walking and climbing increased EF by 6.9% (p less than 0.05) and 21.2% (p less than 0.05) respectively. Changes in LV volumes caused by alterations in venous return were also demonstrated. Compared with baseline, Trendelenburg increased end-diastolic volume (EDV) by 2.9% while isosorbide dinitrate and inflation of cuffs decreased it by 5.7% and 2.2% respectively.
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[Goal related observation of motor behavior in psychiatry]. DIE REHABILITATION 1989; 28:117-22. [PMID: 2799053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The goals to be attained by the patients frequently are determined by the various professions in psychiatry solely before the background of their various specialities. The new observation tool--LOVIPT--is aimed at enabling an integrative approach to be taken, leading from purposive observation of problem behaviour to the formulation of therapy goals. The potential range of objectives is worded in such a way that they can be taken over by other disciplines as well. Development and scientific validation are described in some detail.
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[Evaluation of the luteal function after sterilization by mid-luteal progesterone assay (author's transl)]. CONTRACEPTION, FERTILITE, SEXUALITE 1981; 9:401-4. [PMID: 12262448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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Luteal function after tubal sterilization. Obstet Gynecol 1981; 57:65-8. [PMID: 7454178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The luteal function in women after tubal sterilization was evaluated and compared with a control group of women of a similar average age. Progesterone measurements and endometrial biopsies were obtained in the midluteal phase (5 to 10 days before the next menstrual period). The group of women who had been sterilized by tubal ligation or electrocoagulation had a significantly lower (P less than or equal to .001) mean midluteal progesterone level (8.5 +/- 6.0 ng/ml) than the group of women who had been sterilized by Hulka-Clemens clips (15.4 +/0 6.3 ng/ml) and the control group (17.2 +/- 4.8 ng/ml). The comparison between these 3 groups on days 19 and 20 and on days 21 and 22 gave the same statistical results. Progesterone levels were lower than 10 ng/ml in 54% of women after tubal ligation or electrocoagulation, whereas such low values were found in only 20% of women after sterilization by Hulka-Clemens clips and in 12% of the women in the control group. A retarded endometrium was observed more frequently in the women who underwent tubal ligation or electrocoagulation than in those who were sterilized by Hulka-Clemens clips. The most likely hypothesis to explain these differences is that sterilization using Hulda-Clemens clips preserves the continuity of the uteroovarian artery.
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Studies on the mechanism of ferritin formation. Superoxide dismutase, rapid kinetics and Cr3+ inhibition. FEBS Lett 1978; 91:276-80. [PMID: 680133 DOI: 10.1016/0014-5793(78)81191-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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30
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The results of long-term treatment of coxarthrosis with Indomethacin. ACTA RHEUMATOLOGICA SCANDINAVICA 1966; 12:146-52. [PMID: 5917968 DOI: 10.3109/rhe1.1966.12.issue-1-4.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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[The hypocalciuric effect of benzothiadiazines]. BRUXELLES MEDICAL 1966; 46:833-838. [PMID: 5976393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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[Results of the therapeutic trial of an enzyme complex in the rheumatoid polyarthritis of scleroderma]. JOURNAL BELGE DE RHUMATOLOGIE ET DE MEDECINE PHYSIQUE = BELGISCH TIJDSCHRIFT VOOR REUMATOLOGIE EN FYSISCHE GENEESKUNDE 1966; 21:89-90. [PMID: 5912580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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34
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[Long-term results of the treatment of coxarthrosis with indomethacin]. JOURNAL BELGE DE RHUMATOLOGIE ET DE MEDECINE PHYSIQUE = BELGISCH TIJDSCHRIFT VOOR REUMATOLOGIE EN FYSISCHE GENEESKUNDE 1966; 21:91-5. [PMID: 5912581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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