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1.
  • Thorin, M. H., et al. (författare)
  • Smoking, smoking cessation, and fracture risk in elderly women followed for 10 years
  • 2016
  • Ingår i: Osteoporosis International. - Stockholm : Springer Science and Business Media LLC. - 0937-941X .- 1433-2965. ; 27:1, s. 249-255
  • Tidskriftsartikel (refereegranskat)abstract
    • Summary: This study examines the impact of smoking and smoking cessation on fracture risk in 75-year-old women followed for 10 years. Smoking increased fracture risk, especially for vertebral fractures. Smoking cessation decreased the risk for vertebral fractures but not for other fracture types. Introduction: The purpose of this study was to examine effects of smoking and smoking cessation on fracture risk. Methods: This prospective observational population-based study followed 1033 women during 10 years from age 75. Data regarding smoking were collected at age 75. Hazard ratios (HRs) and 95 % confidence intervals for fracture were calculated using competing risks proportional hazards regression. Results: Both former smokers and current smokers had an increased risk for any fracture (HR 1.30; 1.03–1.66, and HR 1.32; 1.01–1.73, respectively) and any osteoporotic fracture (hip, proximal humerus, distal radius, vertebra) (HR 1.31; 1.01–1.70 and HR 1.49; 1.11–1.98, respectively) compared to non-smokers. Former smokers had an increased risk for proximal humerus fractures (HR 2.23; 1.35–3.70), and current smokers had an increased risk for vertebral fractures (HR 2.30; 1.57–3.38) compared to non-smokers. After adjustment for weight, previous fractures, alcohol habits, bone mineral density (BMD), use of corticoids, vitamin D, bisphosphonates, and previous falls, former smokers had an increased risk for proximal humerus fracture (HR 2.07; 1.19–3.57) and current smokers had an increased risk for osteoporotic (HR 1.47; 1.05–2.05) and vertebral fractures (HR 2.50; 1.58–3.95) compared to non-smokers. Former smokers had a decreased risk for vertebral fractures, but not for other types of fractures, compared to current smokers. Conclusions: Smoking increased the risk for fracture among elderly women, especially vertebral fractures. Smoking cessation decreased the risk for vertebral fractures but not for other types of fractures.
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2.
  • Aaltonen, H. L., et al. (författare)
  • m2ABQ—a proposed refinement of the modified algorithm-based qualitative classification of osteoporotic vertebral fractures
  • 2023
  • Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 0937-941X .- 1433-2965. ; 34:1, s. 137-145
  • Tidskriftsartikel (refereegranskat)abstract
    • Summary: Currently, there is no reproducible, widely accepted gold standard to classify osteoporotic vertebral body fractures (OVFs). The purpose of this study is to refine a method with clear rules to classify OVFs for machine learning purposes. The method was found to have moderate interobserver agreement that improved with training. Introduction: The current methods to classify osteoporotic vertebral body fractures are considered ambiguous; there is no reproducible, accepted gold standard. The purpose of this study is to refine classification methodology by introducing clear, unambiguous rules and a refined flowchart to allow consistent classification of osteoporotic vertebral body fractures. Methods: We developed a set of rules and refinements that we called m2ABQ to classify vertebrae into five categories. A fracture-enriched database of thoracic and lumbar spine radiographs of patients 65 years of age and older was retrospectively obtained from clinical institutional radiology records using natural language processing. Five raters independently classified each vertebral body using the m2ABQ system. After each annotation round, consensus sessions that included all raters were held to discuss and finalize a consensus annotation for each vertebral body where individual raters’ evaluations differed. This process led to further refinement and development of the rules. Results: Each annotation round showed increase in Fleiss kappa both for presence vs absence of fracture 0.62 (0.56–0.68) to 0.70 (0.65–0.75), as well as for the whole m2ABQ scale 0.29 (0.25–0.33) to 0.54 (0.51–0.58). Conclusion: The m2ABQ system demonstrates moderate interobserver agreement and practical feasibility for classifying osteoporotic vertebral body fractures. Future studies to compare the method to existing studies are warranted, as well as further development of its use in machine learning purposes.
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4.
  • Ali, M., et al. (författare)
  • Incidence of distal radius fracture in a general population in southern Sweden in 2016 compared with 2001
  • 2020
  • Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 0937-941X .- 1433-2965. ; 31:4, s. 715-720
  • Tidskriftsartikel (refereegranskat)abstract
    • Summary: In this population-based study, we compared the incidence of distal radius fracture in 2016 with that in the same region’s adult general population in 2001 using radiographs to identify fracture cases. We showed that the incidence decreased by 24% in 2016 compared with 2001 indicating an important development. Introduction: We conducted an epidemiological study on residents of northeastern Skåne in southern Sweden (population 182,000) to determine the overall incidence of distal radius fracture and the incidence according to age, sex, and fracture characteristics in the region’s adult population during 2016, and to study the change in incidence in the same general population between 2001 and 2016 using wrist radiographs to identify fracture cases. Methods: Two orthopedic surgeons examined all wrist radiographs performed at the only two emergency hospitals in the study region to identify individuals, above 18 years of age, who sustained fracture of the distal radius during 2016. We used Poisson regression analysis adjusting for age, sex, and at-risk population to compare the incidence in 2016 with the incidence in 2001, previously estimated using similar methodology. Results: The overall incidence in 2016 was 22 (95% CI 20–25) per 10,000; the incidence in women was 34 (95% CI 30–39) and in men was 10 (95% CI 8–12) per 10,000. The overall incidence in 2016 was 0.76 (95% CI 0.70–0.82) of the incidence in 2001 (p < 0.0001). The incidence in the 3 age groups 19–49, 50–79, and ≥ 80 years was 0.91 (95% CI, 0.69–1.20), 0.67 (95% CI, 0.55–0.82), and 0.49 (95% CI, 0.25–0.97) of the incidence in 2001, respectively. Conclusion: In a general population in Sweden, a statistically significant and clinically important decrease in the incidence of distal radius fracture occurred between 2001 and 2016, driven by lower incidence in individuals 50 years or older.
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5.
  • Angbratt, Marianne, et al. (författare)
  • Questionnaire about Calcium Intake : Can We Trust the Answers?
  • 1999
  • Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 0937-941X .- 1433-2965. ; 9:3, s. 220-225
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study was to construct and evaluate reliable questions concerning calcium intake and to include them in a questionnaire to be used in a community-based intervention program for preventing osteoporosis. Estimating calcium intake is an important factor in evaluating risk profiles for community residents. A very large amount of calcium in the Swedish diet comes from dairy foods. Two questionnaires were designed. Questionnaire A contained eight questions concerning consumption of dairy foods. Questionnaire B contained 52 questions on consumption of calcium-rich food groups and dishes, and also included the eight questions mentioned above. Questionnaire A was sent to 467 randomized women aged 20–30 and 50–60 years. Women with a low calcium intake also answered questionnaire B. In order to validate the questionnaires a selected number of the women were interviewed using a dietary history. In total 363 women answered questionnaire A, 118 of whom had a calcium intake below the recommended amount. Ninety-six women completed questionnaire B. Twenty-two women were interviewed with the dietary history. Statistical analyses using t-tests of the differences between answers to the same questions in two questionnaires and the interview, gave the following results. Questionnaire A provides reliable information about those who do not reach the recommended level of calcium intake. Questionnaire B does not provide any more information than questionnaire A. It is not possible to rank calcium levels in the diet with the questionnaires. Using the estimated calcium intake from dairy foods obtained in questionnaire A, individuals at risk of consuming less than the recommended intake of calcium can be identified, as can those consuming the required amount. In conclusion, questionnaire A is useful in discriminating between subjects with low and high calcium intake.
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6.
  • Armbrecht, G., et al. (författare)
  • Vertebral Scheuermann's disease in Europe: prevalence, geographic variation and radiological correlates in men and women aged 50 and over
  • 2015
  • Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 1433-2965 .- 0937-941X. ; 26:10, s. 2509-2519
  • Tidskriftsartikel (refereegranskat)abstract
    • The Summary In 27 centres across Europe, the prevalence of deforming spinal Scheuermann's disease in age-stratified population-based samples of over 10,000 men and women aged 50+ averaged 8 % in each sex, but was highly variable between centres. Low DXA BMD was un-associated with Scheuermann's, helping the differential diagnosis from osteoporosis. Introduction This study aims to assess the prevalence of Scheuermann's disease of the spine across Europe in men and women over 50 years of age, to quantitate its association with bone mineral density (BMD) and to assess its role as a confounder for the radiographic diagnosis of osteoporotic fracture. Methods In 27 centres participating in the population-based European Vertebral Osteoporosis Study (EVOS), standardised lateral radiographs of the lumbar and of the thoracic spine from T4 to L4 were assessed in all those of adequate quality. The presence of Scheuermann's disease, a confounder for prevalent fracture in later life, was defined by the presence of at least one Schmorl's node or irregular endplate together with kyphosis (sagittal Cobb angle > 40A degrees between T4 and T12) or a wedged-shaped vertebral body. Alternatively, the (rare) Edgren-Vaino sign was taken as diagnostic. The 6-point-per-vertebral-body (13 vertebrae) method was used to assess osteoporotic vertebral shape and fracture caseness. DXA BMD of the L2-L4 and femoral neck regions was measured in subsets. We also assessed the presence of Scheuermann's by alternative published algorithms when these used the radiographic signs we assessed. Results Vertebral radiographic images from 4486 men and 5655 women passed all quality checks. Prevalence of Scheuermann's varied considerably between centres, and based on random effect modelling, the overall European prevalence using our method was 8 % with no significant difference between sexes. The highest prevalences were seen in Germany, Sweden, the UK and France and low prevalences were seen in Hungary, Poland and Slovakia. Centre-level prevalences in men and women were highly correlated. Scheuermann's was not associated with BMD of the spine or hip. Conclusions Since most of the variation in population impact of Scheuermann's was unaccounted for by the radiological and anthropometric data, the search for new genetic and environmental determinants of this disease is encouraged.
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7.
  • Axelsson, Kristian F, et al. (författare)
  • Eating disorders are associated with increased risk of fall injury and fracture in Swedish men and women
  • 2022
  • Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 0937-941X .- 1433-2965. ; 33
  • Tidskriftsartikel (refereegranskat)abstract
    • A Summary In this retrospective cohort study, men and women with eating disorders (n = 8867) had higher risk of injurious falls and hip fractures than age, sex, and county-matched controls (n = 88670). Introduction Eating disorders have been associated with decreased bone mineral density and increased fracture risk, but the association with fall injuries without fracture has not previously been investigated. Furthermore, fracture risk in men with eating disorders has been insufficiently studied. Methods In the present study, 8867 patients (9.4% men) with a diagnosed eating disorders and 88670 age-, sex-, and county-matched controls were investigated. Results The mean (standard deviation) age of the patients and controls was 41.6 (13.7) years and the follow-up time 9.6 (5.2, 14.4) years (median, interquartile range) for patients and 10.1 (5.5, 14.2) years for controls. The proportions of injurious falls without fracture (17.3% vs. 9.0%) and of hip fracture (1.6% vs. 0.7%) were substantially greater in patients with an eating disorder than in their corresponding population controls. In an unadjusted Cox proportional hazards model, individuals with an eating disorder had a higher risk of injurious falls without fracture (Hazard ratio (HR) 95% confidence interval (CI): 2.07 (1.96-2.18), and hip fracture (HR 2.30 (1.92-2.75)) than the risk observed in the controls. The HR for any investigated outcome associated with an eating disorder did not differ by sex or age (interaction term p > 0.10). The risk of injurious falls without fracture and hip fracture was increased in both women (HR 2.07 (1.95-2.19) and HR 2.41 (1.98-2.93), respectively) and men (HR 2.09 (1.76-2.49) and HR 1.84(1.12-3.02), respectively), with an eating disorder. Conclusion The risk of injurious falls without fracture and of hip fracture is increased in both women and men with eating disorders, indicating measures to prevent both falls and fractures are important in these patients, regardless of age and
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8.
  • Axelsson, K. F., et al. (författare)
  • Effectiveness of a minimal resource fracture liaison service
  • 2016
  • Ingår i: Osteoporosis International. - : Springer. - 0937-941X .- 1433-2965. ; 27:11, s. 3165-3175
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: The purpose of this study was to investigate if a 2-year intervention with a minimal resource fracture liaison service (FLS) was associated with increased investigation and medical treatment and if treatment was related to reduced re-fracture risk.METHODS: The FLS started in 2013 using existing secretaries (without an FLS coordinator) at the emergency department and orthopaedic wards to identify risk patients. All patients older than 50 years of age with a fractured hip, vertebra, shoulder, wrist or pelvis were followed during 2013-2014 (n = 2713) and compared with their historic counterparts in 2011-2012 (n = 2616) at the same hospital. Re-fractures were X-ray verified. A time-dependent adjusted (for age, sex, previous fracture, index fracture type, prevalent treatment, comorbidity and secondary osteoporosis) Cox model was used.RESULTS: The minimal resource FLS increased the proportion of DXA-investigated patients after fracture from 7.6 to 39.6 % (p < 0.001) and the treatment rate after fracture from 12.6 to 31.8 %, which is well in line with FLS types using the conventional coordinator model. Treated patients had a 51 % lower risk of any re-fracture than untreated patients (HR 0.49, 95 % CI 0.37-0.65 p < 0.001).CONCLUSIONS: We found that our minimal resource FLS was effective in increasing investigation and treatment, in line with conventional coordinator-based services, and that treated patients had a 51 % reduced risk of new fractures, indicating that also non-coordinator based fracture liaison services can improve secondary prevention of fractures.
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9.
  • Axelsson, K. F., et al. (författare)
  • Fracture Risk After Gastric Bypass Surgery : A Retrospective Cohort Study
  • 2018
  • Ingår i: Osteoporosis International. - : Springer London. - 0937-941X .- 1433-2965. ; 29:Suppl. 1, s. S491-S491
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Objectives: Gastric bypass surgery constitutes the most common and effective bariatric surgery to treat obesity. Gastric bypass leads to bone oss but fracture risk following surgery has been insufficiently studied. Our objective was to investigate if gastric bypass surgery in obese patients, with and without diabetes, was associated with fracture risk, and if the fracture risk was associated with post-surgery weight loss or insufficient calcium and vitamin D supplementation.Methods: Using large databases, 38 971 obese patients undergoing gastric bypass were identified, 7758 with diabetes and 31 213 without. Through multivariable 1:1 propensity score matching, well-balanced controls were identified. The risk of fracture and fall injury was investigated using Cox proportional hazards and flexible parameter models. Fracture risk according to weight loss and degree of calcium and vitamin D supplementation one year post-surgery was investigated.Results: 77 942 patients had a median and total follow-up time of 3.1 (IQR 1.7-4.6) and 251 310 person-years, respectively. Gastric bypass was associated with increased risk of any fracture, in patients with diabetes and without diabetes using a multivariable Cox model (HR 1.26, 95%CI 1.05-1.53 and HR 1.32, 95%CI 1.18-1.47, respectively). The risk of fall injury without fracture was also increased after gastric bypass, both in patients with (HR 1.26 95%CI 1.04-1.52) and without diabetes (HR 1.24 95%CI 1.12-1.38). Weight loss or degree of calcium and vitamin D supplementation after gastric bypass were not associated with fracture risk.Conclusions: Gastric bypass was associated with an increased risk of fracture and fall injury. Weight loss or calcium and vitamin D supplementation following surgery were not associated with fracture risk. These findings indicate that gastric bypass increases fracture risk, which could at least partly be due to increased susceptibility to falls.
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10.
  • Axelsson, Kristian F, et al. (författare)
  • Fractures and fall injuries after hospitalization for seasonal influenza-a national retrospective cohort study
  • 2022
  • Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 0937-941X .- 1433-2965. ; 33:1, s. 47-56
  • Tidskriftsartikel (refereegranskat)abstract
    • In this retrospective cohort study of 6604 adults, 65 years or older, admitted with seasonal influenza at Swedish hospitals, and 330,200 age- and sex-matched controls from the general population admitted for other reasons, were included. Patients with influenza had increased risk of fall injuries and fractures compared to controls. Introduction Fractures and fall injuries often lead to disability, increased morbidity, and mortality. Older adults are at higher risk of influenza-related complications such as pneumonia, cardiovascular events, and deaths, but the risk of fractures and fall injuries is unclear. The primary objective of this study was to investigate the risk of fractures and fall injuries in older patients after admission with seasonal influenza. Methods In this retrospective cohort study of 6604 adults, 65 years or older, admitted with seasonal influenza at Swedish hospitals (from December 1, 2015, to December 31, 2017) and 330,200 age- and sex-matched controls from the general population and admitted for other reasons, the risk of fracture or fall injury was investigated. Results The mean (SD) age of the 6604 influenza patients was 80.9 (8.1) years and 50.1% were women. During the first year after hospital discharge, there were 680 (10.3%) patients suffering from a fracture or fall injury among the patients with influenza, and 25,807 (7.8%) among the controls, corresponding to incident rates of 141 (95% CI, 131-152) and 111 (95% CI, 110-112) fractures or fall injuries per 1000 person-years respectively, translating to a significantly increased risk of fracture or fall injury in a Cox regression model (hazard ratio (HR) 1.28 (95% CI, 1.19-1.38)), a risk that was maintained after multivariable adjustment (HR 1.22 (95% CI 1.13-1.31)). Conclusions Older adults admitted with influenza diagnosis have an increased risk of fracture or fall injury during the first year after discharge.
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