Mann E.,General Practice and Institute for Health Services Research |
Meyer G.,Witten/Herdecke University |
Haastert B.,MediStatistica |
Icks A.,Bielefeld University
BMC Public Health | Year: 2010
Background: Several studies evaluated variations in hip fracture incidences, as well as trends of the hip fracture incidences. Comparisons of trends are lacking so far. We compared the incidence rates and, in particular, its trends between Austria and Germany 1995 to 2004 analysing national hospital discharge diagnosis register data. Methods: Annual frequencies of hip fractures and corresponding incidences per 100,000 person years were estimated, overall and stratified for sex and age, assuming Poisson distribution. Multiple Poisson regression models including country and calendar year, age and sex were used to analyse differences in incidence and trend. The difference of annual changes between the two countries was explored using an interaction term (calender year * country). Results: Overall, the increase of hip fracture risk was 1.31 fold higher (95% CI 1.29-1.34) in Austria compared to Germany, adjusted for age, sex, and calendar year. The risk increase was comparable for both sexes (males: RR 1.35 (1.32-1.37), females: RR 1.31 (1.29-1.33)). Hip fracture trend from 1995 to 2004 indicates an increase in both countries without a statistically significant difference between Austria and Germany (interaction term: p = 0.67). Conclusion: In this study comparing hip fracture incidences and its trend using pooled data, the incidence in Austria was 30% higher compared to its neighbouring country Germany. For both countries a similar increasing trend of hip fracture incidence over the 10-year study period was calculated. The results need confirmation by other studies. © 2010 Mann et al; licensee BioMed Central Ltd.
Icks A.,Heinrich Heine University Dusseldorf |
Arend W.,Heinrich Heine University Dusseldorf |
Becker C.,Robert Bosch GmbH |
Rapp K.,Robert Bosch GmbH |
And 2 more authors.
Archives of Osteoporosis | Year: 2013
We analyzed hip fracture incidence trends in Germany in 1995-2010, using national hospital discharge register. Overall, after age-sex-region adjustment, there was no significant trend. However, stratified analyses showed a significant decrease in younger people. In the elderly, there was a moderate increase in men and decrease in women. Incidences were still higher in Western Germany (each significant). Background: Whereas most studies from US and European countries found trends of a decreasing hip fracture incidence in the last years, in Germany, an increase has been still observed up to 2003. Methods: Analysis of annual hip fracture incidences in Germany was carried out using the national hospital discharge register and a correction factor of 0.89. Estimate of age-sex-adjusted changes was determined using the Poisson regression (incidence rate ratios, IRR; with 95 % confidence intervals, CI), overall and in age-sex-region strata. Results: The number of patients with at least one hospital admission for hip fracture increased (1995: n = 99,146; 2010: n = 128,240). Overall, after adjustment for age, sex, and region, there was no significant trend during the observation period. However, in stratified analyses, a significant decrease was seen in people aged less than 40 years in both sexes and regions. Also, in women aged 60 years or older, the incidence decreased (Western Germany p = 0.001) or remained (Eastern Germany p = 0.053) (IRR 1995-2010, 95 % CI: 0.95, 0.92-0.98; and 1.05, 0.999-1.11). In contrast, the incidence in men 40-59 and 60 years older increased in both regions (West: 1.03, 0.97-1.09; and 1.11, 1.07-1.14; East: 1.12, 1.01-1.25; and 1.29, 1.22-1.36). While incidences were still significantly higher in Western Germany overall and in most strata, they tended to converge. Conclusions: In line with most European countries, the overall hip fracture incidence in Germany no longer increases. However, differences between age, sex, and region exist. © 2013 International Osteoporosis Foundation and National Osteoporosis Foundation.
Nauck M.A.,Diabeteszentrum Bad Lauterberg |
Haastert B.,MediStatistica |
Trautner C.,Ostfalia University of Applied Sciences |
Muller U.A.,Jena University Hospital |
And 2 more authors.
Diabetologia | Year: 2014
Aims/hypothesis: We evaluated whether self-monitoring of blood glucose (SMBG) leads to better glycaemic control (HbA1c) in patients with type 2 diabetes on conventional insulin regimens. Methods: Patients with type 2 diabetes on a conventional insulin regimen (basal or premixed insulin with or without additional oral glucose-lowering agents) were recruited at study centres led by members of the German Diabetes Association. In a randomised, prospective, open 2∈×∈2 factorial design, the once-weekly performance of four-point glucose profiles (SMBG +; n=151 patients) was compared with no SMBG (SMBG -; n=149), and the measuring and transmitting of HbA 1c results to the study centres (HbA1c +; n=158, of these 82 SMBG - and 76 SMBG +) was compared with HbA1c measurement without disclosure of results (HbA1c -; n=142, of these 67 SMBG - and 75 SMBG +). Randomised allocation was carried out by a central office, using sequentially numbered, sealed envelopes. The primary endpoint was the reduction of HbA1c compared with baseline after 12 months. Secondary analyses were of therapy intensification in response to higher blood or urinary glucose or HbA1c. Participants and caregivers were not blinded as to the allocation of interventions, whereas the laboratory determining HbA1c remained blinded. Results: Patient characteristics were balanced across groups. A total of 56 patients dropped out. In completers, HbA1c was reduced in the SMBG + group from 7.3% to 7.0%, i.e. by 0.3% (0.1%, 0.5%) vs SMBG - from 7.3% to 7.0% and 0.3% (0.2%, 0.5%), respectively, the difference being 0.0% (-0.2%, 0.2%) (p=0.93). The disclosure of HbA1c results had no significant influence, with a difference of 0.1% (-0.1%, 0.4%) (p=0.28). Values above are mean (95% CI). The ORs for therapy intensification significantly rose as the following increased: proportions of urine samples testing positive for glucose, HbA1c concentrations, and fasting or postprandial glucose concentrations. No important adverse events were associated with the interventions. Conclusions/interpretation: SMBG profiles once weekly or the disclosure of HbA1c results did not improve glycaemic control in patients with type 2 diabetes on conventional insulin treatment, although indicators of hyperglycaemia increased the likelihood of therapy intensification. Greater intensification may be necessary to impact on glycaemic control. Trial registration:: www.clinicaltrials.gov (registration code NCT00688363) Funding:: Deutsche Diabetes-Gesellschaft, Deutsche Diabetes-Stiftung, Bayer Vital GmbH © 2014 Springer-Verlag Berlin Heidelberg.
Mehlhorn J.,Heinrich Heine University Dusseldorf |
Haastert B.,MediStatistica |
Rehkamper G.,Heinrich Heine University Dusseldorf
Journal of Experimental Biology | Year: 2010
Homing pigeons (Columba livia f.d.) are well-known for their homing abilities, and their brains seem to be functionally adapted to homing as exemplified, e.g. by their larger hippocampi and olfactory bulbs. Their hippocampus size is influenced by navigational experience, and, as in other birds, functional specialisation of the left and right hemispheres ('lateralisation') occurs in homing pigeons. To show in what way lateralisation is reflected in brain structure volume, and whether some lateralisation or asymmetry in homing pigeons is caused by experience, we compared brains of homing pigeons with and without navigational experience referring to this. Fourteen homing pigeons were raised under identical constraints. After fledging, seven of them were allowed to fly around the loft and participated successfully in races. The other seven stayed permanently in the loft and thus did not share the navigational experiences of the first group. After reaching sexual maturity, all individuals were killed and morphometric analyses were carried out to measure the volumes of five basic brain parts and eight telencephalic brain parts. Measurements of telencephalic brain parts and optic tectum were done separately for the left and right hemispheres. The comparison of left/right quotients of both groups reveal that pigeons with navigational experience show a smaller left mesopallium in comparison with the right mesopallium and pigeons without navigational experience a larger left mesopallium in comparison with the right one. Additionally, there are significant differences between left and right brain subdivisions within the two pigeon groups, namely a larger left hyperpallium apicale in both pigeon groups and a larger right nidopallium, left hippocampus and right optic tectum in pigeons with navigational experience. Pigeons without navigational experience did not show more significant differences between their left and right brain subdivisions. The results of our study confirm that the brain of homing pigeons is an example for mosaic evolution and indicates that lateralisation is correlated with individual life history (experience) and not exclusively based on heritable traits. © 2010. Published by The Company of Biologists Ltd.
Morbach S.,Marienkrankenhaus |
Furchert H.,Marienkrankenhaus |
Groblinghoff U.,Marienkrankenhaus |
Hoffmeier H.,Marienkrankenhaus |
And 11 more authors.
Diabetes Care | Year: 2012
OBJECTIVE - There is a dearth of long-term data regarding patient and limb survival in patients with diabetic foot ulcers (DFUs). The purpose of our study was therefore to prospectively investigate the limb and person survival of DFU patients during a follow-up period of more than 10 years. RESEARCH DESIGN AND METHODS - Two hundred forty-seven patients with DFUs and without previous major amputation consecutively presenting to a single diabetes center between June 1998 and December 1999 were included in this study and followed up until May 2011. Mean patient age was 68.8 ± 10.9 years, 58.7% were male, and 55.5%had peripheral arterial disease (PAD). Times to first major amputation and to death were analyzed with Kaplan- Meier curves and Cox multiple regression. RESULTS - A first major amputation occurred in 38 patients (15.4%) during follow-up. All but one of these patients had evidence of PAD at inclusion in the study, and 51.4% had severe PAD [anklebrachial pressure index ≤0.4]). Age (hazard ratio [HR] per year, 1.05 [95% CI, 1.01-1.10]), being on dialysis (3.51 [1.02-12.07]), and PAD (35.34 [4.81-259.79]) were significant predictors for first major amputation. Cumulative mortalities at years 1, 3, 5, and 10 were 15.4, 33.1, 45.8, and 70.4%, respectively. Significant predictors for death were age (HR per year, 1.08 [95% CI, 1.06-1.10]), male sex ([1.18-2.32]), chronic renal insufficiency (1.83 [1.25-2.66]), dialysis (6.43 [3.14-13.16]), and PAD (1.44 [1.05-1.98]). CONCLUSIONS - Although long-term limb salvage in this modern series of diabetic foot patients is favorable, long-term survival remains poor, especially among patients with PAD or renal insufficiency. © 2012 by the American Diabetes Association.