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Kim S, Kim B, Han KD, Park J, Yoo JE, Choi HL, Chang WH, Cho IY, Shin DW. Risk of fracture among patients with spinal cord injury: A nationwide cohort study in South Korea. Bone 2024; 183:117093. [PMID: 38579925 DOI: 10.1016/j.bone.2024.117093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
BACKGROUND Clinical concerns about preventing and managing fractures after spinal cord injury (SCI) have been growing. OBJECTIVE This study investigates the risk of fractures among SCI patients according to the presence of disability, disease severity, and level of injury. METHODS We performed a retrospective cohort study using the Korean National Health Insurance Service (KNHIS 2010-2018) database. We included 5190 SCI patients and 1:3 age- and sex-matched control participants. The primary outcome was fracture, and the cohort was followed until December 31, 2019. RESULTS SCI patients had a higher fracture risk than the matched controls (adjusted hazard ratio [aHR] 1.33, 95 % CI 1.16-1.54). The risk of fracture was higher in the presence of disability (aHR 1.57, 95 % CI 1.19-2.07), especially among patients with severe disability (aHR 1.65, 95 % CI 1.05-2.60). Higher fracture risks were observed among SCI patients regardless of injury level, but statistical significance was found only with cervical-level injury. When we considered site-specific fractures, vertebral (aHR 1.31, 95 % CI 1.04-1.64) and hip fracture risks (aHR 2.04, 95 % CI 1.39-2.98) were both higher among SCI patients than the controls. SCI patients with disability and cervical-level injury showed the highest hip fracture risk (aHR 3.67, 95 % CI 1.90-7.07). CONCLUSIONS Compared with the controls, SCI patients were at higher risk of any fracture, particularly hip fracture, especially those with disability and cervical-level injury. Clinicians should be aware of the fracture risk among SCI patients to provide proper management.
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Affiliation(s)
- Seonghye Kim
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Bongseong Kim
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea
| | - Junhee Park
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jung Eun Yoo
- Department of Family Medicine, Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea; Department of Family Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hea Lim Choi
- Department of Family Medicine, Executive Healthcare Clinic, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Won Hyuk Chang
- Department of Physical and Rehabilitation Medicine, Center for Prevention and Rehabilitation, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - In Young Cho
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea.
| | - Dong Wook Shin
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea; Department of Clinical Research Design and Evaluation, Samsung Advanced Institute for Health Science and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea; Department of Digital Health, Samsung Advanced Institute for Health Science and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea.
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Han S, Lee HD, Jang HD, Suh DH, Han K, Hong JY. Lumbar radiculopathy and fracture risk: A Korean nationwide population-based cohort study. Bone 2024; 179:116981. [PMID: 38008302 DOI: 10.1016/j.bone.2023.116981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 11/06/2023] [Accepted: 11/21/2023] [Indexed: 11/28/2023]
Abstract
INTRODUCTION Lumbar radiculopathy is a common disease with a high economic burden, and fractures in adults are a significant public health problem. However, studies of the relationship between lumbar radiculopathy and fractures are scarce. We investigated the fracture risk in patients with lumbar radiculopathy. METHODS This nationwide retrospective cohort study identified 815,101 patients with lumbar radiculopathy and randomly matched individuals without lumbar radiculopathy (1:1) who were included in the Korean National Health Insurance System in 2012. Cox proportional hazards regression analyses were performed to calculate the hazard ratio (HR) for fracture risk in patients with lumbar radiculopathy. RESULTS The study included 301,347 patients with lumbar radiculopathy and matched 289,618 individuals without lumbar radiculopathy. Compared to individuals without lumbar radiculopathy, patients with lumbar radiculopathy had a 27 % increased fracture risk (adjusted HR = 1.27, 95 % confidence interval = 1.24-1.31). The Kaplan-Meier plot showed a significantly higher fracture incidence in patients with lumbar radiculopathy than in individuals without lumbar radiculopathy at all times. CONCLUSION Lumbar radiculopathy is significantly associated with fracture risk.
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Affiliation(s)
- Sangsoo Han
- Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Bucheon 14584, Republic of Korea
| | - Han-Dong Lee
- Department of Orthopaedic Surgery, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Hae-Dong Jang
- Department of Orthopaedic Surgery, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro, Bucheon 14584, Republic of Korea
| | - Dong Hun Suh
- Department of Orthopedics, Korea University Hospital, Ansan, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-do 15355, Republic of Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
| | - Jae-Young Hong
- Department of Orthopedics, Korea University Hospital, Ansan, 123, Jeokgeum-ro, Danwon-gu, Ansan-si, Gyeonggi-do 15355, Republic of Korea.
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Gupta T, Ghosh SB, Bandyopadhyay-Ghosh S, Sain M. Is it possible to 3D bioprint load-bearing bone implants? A critical review. Biofabrication 2023; 15:042003. [PMID: 37669643 DOI: 10.1088/1758-5090/acf6e1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 09/05/2023] [Indexed: 09/07/2023]
Abstract
Rehabilitative capabilities of any tissue engineered scaffold rely primarily on the triad of (i) biomechanical properties such as mechanical properties and architecture, (ii) chemical behavior such as regulation of cytokine expression, and (iii) cellular response modulation (including their recruitment and differentiation). The closer the implant can mimic the native tissue, the better it can rehabilitate the damage therein. Among the available fabrication techniques, only 3D bioprinting (3DBP) can satisfactorily replicate the inherent heterogeneity of the host tissue. However, 3DBP scaffolds typically suffer from poor mechanical properties, thereby, driving the increased research interest in development of load-bearing 3DBP orthopedic scaffolds in recent years. Typically, these scaffolds involve multi-material 3D printing, comprising of at-least one bioink and a load-bearing ink; such that mechanical and biological requirements of the biomaterials are decoupled. Ensuring high cellular survivability and good mechanical properties are of key concerns in all these studies. 3DBP of such scaffolds is in early developmental stages, and research data from only a handful of preliminary animal studies are available, owing to limitations in print-capabilities and restrictive materials library. This article presents a topically focused review of the state-of-the-art, while highlighting aspects like available 3DBP techniques; biomaterials' printability; mechanical and degradation behavior; and their overall bone-tissue rehabilitative efficacy. This collection amalgamates and critically analyses the research aimed at 3DBP of load-bearing scaffolds for fulfilling demands of personalized-medicine. We highlight the recent-advances in 3DBP techniques employing thermoplastics and phosphate-cements for load-bearing applications. Finally, we provide an outlook for possible future perspectives of 3DBP for load-bearing orthopedic applications. Overall, the article creates ample foundation for future research, as it gathers the latest and ongoing research that scientists could utilize.
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Affiliation(s)
- Tanmay Gupta
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Subrata Bandhu Ghosh
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Sanchita Bandyopadhyay-Ghosh
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Mohini Sain
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
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Guo Y, Zhao H, Wang F, Xu H, Liu X, Hu T, Wu D. Telomere length as a marker of changes in body composition and fractures-an analysis of data from the NHANES 2001-2002. Front Immunol 2023; 14:1181544. [PMID: 37744360 PMCID: PMC10514483 DOI: 10.3389/fimmu.2023.1181544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 08/23/2023] [Indexed: 09/26/2023] Open
Abstract
Purpose There has been an association between changes in body composition, fracture incidence, and age in previous studies. Telomere length (TL) has been proposed as a biomarker of aging. However, the relationship between body composition, fractures, and TL has rarely been studied. Therefore, this study aimed to investigate the correlation between TL and body composition and fractures.Patients and methods: 20950 participants from the 2001-2002 National Health and Nutrition Examination Survey (NHANES) were included in the final analysis. In NHANES, body compositions were measured with DXA, and TL was determined with quantitative PCR. Correlation analysis of TL and body composition was conducted using multivariate weighted linear regression and logistic regression models. Results The results showed that TL positively correlated with bone mineral density (BMD) and bone mineral content (BMC) in most body parts. However, BMD and BMC were negatively connected with TL in the upper limbs and skull. Fat content was negatively associated with TL, while muscle content was positively linked to TL. In addition, TL's trend analysis results were consistent with the regression model when transformed from a continuous to a classified variable. An increase in TL was associated with a higher incidence of wrist fractures, while a decrease in spine fractures. The above correlation also has a certain degree of sex specificity. Conclusion Our study indicate that TL is associated with body composition as well as fractures, but further research is needed to confirm these contrasting associations in the skull, upper limbs, and wrists.
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Affiliation(s)
| | | | | | | | | | - Tao Hu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Desheng Wu
- Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
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Lee JM, Han K, Lee KM, Yun JS. Fracture Risk in Middle-Aged and Older Patients With Inflammatory Bowel Disease: A Korean Nationwide Population-Based Cohort Study. J Korean Med Sci 2023; 38:e275. [PMID: 37667580 PMCID: PMC10477079 DOI: 10.3346/jkms.2023.38.e275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 06/21/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Fracture risks and associated factors are poorly understood in middle-aged and older Asian populations with inflammatory bowel disease (IBD). Therefore, we investigated fracture risk and the effects of comorbidities and lifestyle habits on the risk of developing fractures in middle-aged and older Korean patients with IBD. METHODS We conducted a nationwide population-based cohort study using data from the National Health Insurance Corporation Database. Patients with IBD who underwent the National Screening Program and were over 40 years of age were included in the study. We compared patients with age- and sex-matched controls. The incidence of fractures, including vertebral, hip, and other sites, was determined using claims data. RESULTS The risk of total fractures and vertebral fractures was significantly higher in the IBD group (adjusted hazard ratio [HR], 1.31, 95% confidence interval [CI], 1.16-1.48; adjusted HR, 1.59, 95% CI, 1.33-1.92, respectively). Obesity, diabetes, hypertension, and lack of exercise were associated with increased fracture risk in patients with ulcerative colitis (UC). In contrast, the risk increases in patients with Crohn's disease regardless of comorbidities and lifestyle preferences. CONCLUSION The risk of bone fracture, especially vertebral fracture, is high in middle-aged and older Korean patients with IBD. Obesity, diabetes, hypertension, and lack of exercise are all risk factors associated with bone fractures in patients with UC. These findings are helpful for clinicians to educate patients with IBD on bone health and raise awareness of bone fractures in patients with UC who have specific risk factors.
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Affiliation(s)
- Ji Min Lee
- Division of Gastroenterology, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyungdo Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea.
| | - Kang-Moon Lee
- Division of Gastroenterology, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
| | - Jae-Seung Yun
- Division of Endocrinology, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Davis J, Casteel C, Brown G, Carnahan R. Fracture risk and opioid use in patients aged 17-64 years: An analysis of administrative claims data. Pharmacotherapy 2023; 43:913-921. [PMID: 37455671 DOI: 10.1002/phar.2849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 07/18/2023]
Abstract
STUDY OBJECTIVE The objective of this work is to describe the risk of fracture in adults aged 17 to 64 years across categories of daily opioid dose. DESIGN A retrospective analysis of insurance claims data. DATA SOURCE Information from a private health insurance provider for the years 2003-2014 for enrolled individuals living in Iowa. PATIENTS Patients who were aged 17 to 64 years and prescribed an opioid were followed for the length of opioid treatment plus 30 days to determine whether a fracture occurred. MEASUREMENTS Average daily morphine milligram equivalent (MME) was determined for patients who received a prescription for opioids. The outcome of interest was incident fracture following opioid treatment initiation. Cox proportional hazard models were used to compare the risk of fracture across categorical groups of average daily MME. Inverse probability weighting was used to control for patient-level variables. MAIN RESULTS In total, 316,024 individual patients were identified in the administrative claims data as having an opioid prescription from 2003 to 2014, and 3038 fractures occurred during follow-up (9.6 fractures per 1000 opioid-prescribed patients). Relative to the lowest quartile of prescribed opioid (⟨22 MME), patients in each higher prescribed level were more likely to experience a fracture (22-36 MME Hazard Ratio (HR) = 1.35, 95% Confidence Interval (CI): 1.21-1.51; 37-50 MME HR = 1.38, 95% CI: 1.24-1.54; ⟩50 MME HR = 1.35, 95% CI: 1.20-1.52). CONCLUSIONS We observed an increased fracture risk in all three higher categories of opioid exposure relative to the lowest category (⟨22 MME). The risk of a fracture should be considered in opioid treatment decisions.
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Affiliation(s)
- Jonathan Davis
- Department of Occupational and Environmental Health, University of Iowa College of Public Health, Iowa City, Iowa, USA
| | - Carri Casteel
- Department of Occupational and Environmental Health, University of Iowa College of Public Health, Iowa City, Iowa, USA
| | - Grant Brown
- Department of Biostatistics, University of Iowa College of Public Health, Iowa City, Iowa, USA
| | - Ryan Carnahan
- Department of Epidemiology, University of Iowa College of Public Health, Iowa City, Iowa, USA
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Shieh A, Karlamangla AS, Huang MH, Shivappa N, Wirth MD, Hébert JR, Greendale GA. Dietary Inflammatory Index and Fractures in Midlife Women: Study of Women's Health Across the Nation. J Clin Endocrinol Metab 2023; 108:e594-e602. [PMID: 36780235 PMCID: PMC10348462 DOI: 10.1210/clinem/dgad051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/07/2022] [Accepted: 01/25/2023] [Indexed: 02/14/2023]
Abstract
CONTEXT While evidence suggests that chronic, low-grade inflammation is a risk factor for bone loss and fractures, the potential relation between an inflammatory dietary profile and greater fracture risk is uncertain. OBJECTIVE We examined whether a more inflammatory diet, consumed during pre- and early perimenopause, is associated with more incident fractures starting in the menopause transition (MT) and continuing into postmenopause. METHODS Dietary inflammatory potential was quantified using 2 energy-adjusted dietary inflammatory index scores: one for diet only (E-DII), and one for diet plus supplements (E-DII-S). We included 1559 women from the Study of Women's Health Across the Nation, with E-DII and E-DII-S scores from the baseline visit (during pre- or early perimenopausal), and up to 20 years of follow-up. We excluded women using bone-beneficial medications at baseline; subsequent initiators were censored at first use. The associations of E-DII or E-DII-S (each tested as separate exposures) with incident fracture were examined using Cox proportional hazards regression. RESULTS Adjusted for age, BMI, cigarette use, diabetes, MT stage, race/ethnicity, prior fracture, bone-detrimental medication use, aspirin or nonsteroidal anti-inflammatory drug use, and study site, greater E-DII and E-DII-S (tested separately) were associated with more future fractures. Each SD increment in E-DII and E-DII-S predicted 28% (P = .005) and 21% (P = .02) greater fracture hazard, respectively. Associations were essentially unchanged after controlling for bone mineral density. CONCLUSION A more pro-inflammatory diet in pre- and early perimenopause is a risk factor for incident fracture. Future studies should consider whether reducing dietary inflammation in midlife diminishes fracture risk.
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Affiliation(s)
- Albert Shieh
- Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Arun S Karlamangla
- Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Mei-Hua Huang
- Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Nitin Shivappa
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
- College of Nursing, University of South Carolina, Columbia, SC 29208, USA
- Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC 29208, USA
| | - Michael D Wirth
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
- College of Nursing, University of South Carolina, Columbia, SC 29208, USA
- Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC 29208, USA
| | - James R Hébert
- Cancer Prevention and Control Program and Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
- Department of Nutrition, Connecting Health Innovations LLC, Columbia, SC 29208, USA
| | - Gail A Greendale
- Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
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Wiromrat P, Rattanathongkom A, Laoaroon N, Suwannaying K, Komwilaisak P, Panamonta O, Wongsurawat N, Nasomyont N. Bone Mineral Density and Dickkopf-1 in Adolescents with Non-Deletional Hemoglobin H Disease. J Clin Densitom 2023; 26:101379. [PMID: 37147222 DOI: 10.1016/j.jocd.2023.101379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/14/2023] [Accepted: 04/24/2023] [Indexed: 05/07/2023]
Abstract
BACKGROUND Low bone mineral density (BMD) is prevalent in individuals with β-thalassemia and is associated with increased circulating dickkopf-1 concentration. These data are limited in α-thalassemia. Therefore, we aimed to determine the prevalence of low BMD and the association between BMD and serum dickkopf-1 in adolescents with non-deletional hemoglobin H disease, a form of α-thalassemia whose severity is comparable to β-thalassemia intermedia. METHODOLOGY The lumbar spine and total body BMD were measured and converted into height-adjusted z-scores. Low BMD was defined as BMD z-score ≤ -2. Participant blood was drawn for measurement of dickkopf-1 and bone turnover marker concentrations. RESULTS Thirty-seven participants with non-deletional hemoglobin H disease (59% female, mean age 14.6 ± 3.2 years, 86% Tanner stage ≥2, 95% regularly transfused, 16% taking prednisolone) were included. Over one year prior to the study, mean average pretransfusion hemoglobin, ferritin and 25-hydroxyvitamin D concentrations were 8.8 ± 1.0 g/dL, and 958 ± 513 and 26 ± 6 ng/mL, respectively. When participants taking prednisolone were excluded, the prevalence of low BMD at the lumbar spine and total body was 42% and 17%, respectively. BMD at both sites was correlated positively with body mass index z-score, and negatively with dickkopf-1 (all p-values <0.05). There were no correlations among dickkopf-1, 25-hydroxyvitamin D, osteocalcin and C-telopeptide of type-I collagen. Multiple regression analysis showed dickkopf-1 inversely associated with total body BMD z-score adjusting for sex, bone age, body mass index, pre-transfusion hemoglobin, 25-hydroxyvitamin D, history of delayed puberty, type of iron chelator and prednisolone use (p-value = 0.009). CONCLUSIONS We demonstrated a high prevalence of low BMD in adolescents with non-deletional hemoglobin H disease. Moreover, dickkopf-1 inversely associated with total body BMD suggesting it may serve as a bone biomarker in this patient population.
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Affiliation(s)
- Pattara Wiromrat
- Section of Endocrinology, Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
| | - Aree Rattanathongkom
- Section of Endocrinology, Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Napat Laoaroon
- Section of Hematology-Oncology, Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Kunanya Suwannaying
- Section of Hematology-Oncology, Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Patcharee Komwilaisak
- Section of Hematology-Oncology, Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Ouyporn Panamonta
- Section of Endocrinology, Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Nantaporn Wongsurawat
- Section of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Nat Nasomyont
- Division of Endocrinology, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Luo J, Liu W, Xie Q, He J, Jiang L. Synthesis and characterisation of a novel poly(2-hydroxyethylmethacrylate)-chitosan hydrogels loaded cerium oxide nanocomposites dressing on cutaneous wound healing on nursing care of chronic wound. IET Nanobiotechnol 2023. [PMID: 37312282 DOI: 10.1049/nbt2.12118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/14/2023] [Accepted: 02/06/2023] [Indexed: 06/15/2023] Open
Abstract
This study was designed to establish the composition of wound dressing based on poly(2-hydroxyethylmethacrylate)-chitosan (PHEM-CS) hydrogels-loaded cerium oxide nanoparticle (CeONPs) composites for cutaneous wound healing on nursing care of the chronic wound. The as-synthesised PHEM-CS/CeONPs hydrogels nanocomposites were characterised by using UV-visible spectroscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and thermo gravimetric analysis. The influence of PHEM-CS/CeONPs hydrogels nanocomposites on the gelation time, swelling ratio, in vitro degradation, and mechanical properties was investigated. The as-prepared PHEM-CS/CeONPs hydrogels nanocomposites dressing shows high antimicrobial activity against Staphylococcus aureus and Escherichia coli. Similar trends were observed for the treatment of biofilms where PHEM-CS/CeONPs hydrogels nanocomposites displayed better efficiency. Furthermore, the biological properties of PHEM-CS/CeONPs hydrogels nanocomposites had non-toxic in cell viability and excellent cell adhesion behaviour. After 2 weeks, the wounds treated with the PHEM-CS/CeONPs hydrogels nanocomposite wound dressing achieved a significant closure to 98.5 ± 4.95% compared with the PHEM-CS hydrogels with nearly 71 ± 3.55% of wound closure. Hence, this study strongly supports the possibility of using this novel PHEM-CS/CeONPs hydrogels nanocomposites wound dressing for efficient cutaneous wound healing on chronic wound infection and nursing care.
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Affiliation(s)
- Jingna Luo
- Department of Nursing, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Weijun Liu
- Department of Consumable Reagent, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Qiaoling Xie
- Department of Nephrology, The First People's Hospital of Wenling, Wenling, Zhejiang, China
| | - Jianshu He
- Department of Nephrology, The First People's Hospital of Wenling, Wenling, Zhejiang, China
| | - Liyan Jiang
- Department of Orthopedic Surgery, ChengDu Fifth People's Hospital, Chengdu, Sichuan, China
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Jung SY, Cho EB, Han KD, Jung JH, Yeo Y, Kong SH, Shin DW, Min JH. Risk of fracture in neuromyelitis optica spectrum disorder and multiple sclerosis: a nationwide cohort study in South Korea. Osteoporos Int 2023; 34:925-933. [PMID: 36854747 DOI: 10.1007/s00198-023-06715-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 02/21/2023] [Indexed: 03/02/2023]
Abstract
PURPOSE Interest in fractures in patients with multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) has considerably increased in the last decade. However, few studies have compared the incidence of fractures between patients with MS and NMOSD using a nationwide database. This study aimed to evaluate the differences in the risk of fracture between patients with NMOSD and MS compared to that in healthy controls using cohort data from a Korean nationwide database. METHODS In this retrospective cohort study, data from the National Health Insurance Service (NHIS) database from January 2010 to December 2017 were analyzed. A total of 1,217/1,329 patients with MS/NMOSD free of fractures at the index date were included. Matched controls were selected based on age, sex, and the presence of hypertension, diabetes mellitus, and dyslipidemia. The mean follow-up durations after the index date were 4.40/4.08 years for patients with MS/NMOSD and 4.73/4.28 for their matched controls. RESULTS The adjusted hazard ratios (aHRs) with 95% confidence intervals of any, hip, and vertebral fractures were 1.81 (1.43-2.28), 3.36 (1.81-6.24), and 2.01 (1.42-2.99) times higher for patients with MS than for controls, respectively, and they were 1.85 (1.47-2.34), 3.82 (2.05-7.11), and 2.84 (1.92-4.21) times higher for patients with NMOSD than for controls, respectively. No significant differences were observed in the incidence of fractures between the MS and NMOSD groups. Patients with MS/NMOSD had a 1.8-fold higher risk of fracture than matched controls, and the risk of hip fracture was especially high (3- to 4-fold higher). CONCLUSIONS Clinicians need to regularly assess patients with MS/NMOSD for the risk of fractures and take preventative measures to reduce it.
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Affiliation(s)
- Se Young Jung
- Department of Family Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
- Department of Digital Healthcare, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Eun Bin Cho
- Department of Neurology, College of Medicine, Gyeongsang Institute of Health Science, Gyeongsang National University, Jinju, South Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, Seoul, Korea
| | - Jin Hyung Jung
- Department of Biostatics, The Catholic University of Korea, Seoul, South Korea
| | - Yohwan Yeo
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Sung Hye Kong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Dong Wook Shin
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
- Department of Clinical Research Design and Evaluation/Department of Digital Health, Samsung Advanced Institute of Health Science and Technology (SAIHST), Sungkyunkwan University, 50 Irwon-Dong, Gangnam-Gu, Seoul, 135-710, South Korea.
- Center for Wireless and Population Health Systems, University of California, San Diego, La Jolla, CA, USA.
| | - Ju-Hong Min
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Irwon-Dong, Gangnam-Gu, Seoul, 135-710, South Korea.
- Neuroscience Center, Samsung Medical Center, Seoul, South Korea.
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, South Korea.
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11
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Heifner JJ, Rivera Dones AE, Wells AL, Mercer DM. The comparative performance of radial head prostheses in patients younger than and older than 50 years: a systematic review. JSES REVIEWS, REPORTS, AND TECHNIQUES 2023; 3:49-55. [PMID: 37588069 PMCID: PMC10426626 DOI: 10.1016/j.xrrt.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Patient age may play a role in the surgeon's decision between radial head arthroplasty (RHA) and open reduction internal fixation in radial head fracture treatment. Though large sample reports have detailed outcomes of radial head replacement for a mean age younger than 50 years, the age ranges are widely distributed. Patient outcomes are not uniform across a broad age distribution. Therefore, treatment decisions should be evaluated within the confines of a narrower age bracket. An understanding of clinical outcomes for radial head replacement in younger adults will provide value for guiding treatment decisions. We performed a systematic review comparing the clinical outcomes for radial head replacement in patients younger and older than 50 years of age. Further analysis compared outcomes between RHA performed as a primary procedure and as a secondary procedure in patients younger and older than 50 years of age. Methods PubMed was queried for articles which delineated individual patient data for age, surgical treatment, and appropriate outcome metrics. Articles were grouped based on patient age of under 50 and over 50 years and within those age groups, based on the arthroplasty being performed as a primary or as a secondary procedure. Results There were no significant differences between the under 50 and the over 50 groups for Mayo Elbow Performance Score (P = .79) and for implant revision/removal (P = .32). In the under 50 group, RHA done as a primary procedure had significantly higher (P = .001) mean Mayo Elbow Performance Score than RHA done as a secondary procedure. In the over 50 group, relative risk was 2.39 (95% confidence interval, 2.12-2.69) for implant revision/removal (P = .11) when comparing primary and secondary procedures. Discussion At a mean follow-up of 48 months, RHA in patients under the age of 50 years had satisfactory outcomes which were comparable to outcomes in patients over the age of 50 years. Across both age groups, arthroplasty performed as a primary procedure demonstrated superior outcomes compared to arthroplasty performed as a secondary procedure. Our findings provide guidance to surgeons who face a multifaceted decision when encountering younger adult patients with radial head fracture patterns that may not be amenable to fixation. Awareness of the age-specific performance of radial head implants is an important component of the decision for surgical treatment.
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Affiliation(s)
- John J. Heifner
- St George’s University School of Medicine, Great River, NY, USA
| | | | - A. Laurie Wells
- Department of Orthopaedics and Rehabilitation, University of New Mexico, Albuquerque, NM, USA
| | - Deana M. Mercer
- Department of Orthopaedics and Rehabilitation, University of New Mexico, Albuquerque, NM, USA
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12
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Huang BX, Wang YH, Wang HB, Wang C, Jin FF, Li J, Gan LX, Shi Y, Jiang BG, Zhang DY. Epidemiology and the economic burden of traumatic fractures in China: A population-based study. Front Endocrinol (Lausanne) 2023; 14:1104202. [PMID: 36761191 PMCID: PMC9902367 DOI: 10.3389/fendo.2023.1104202] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/12/2023] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVES National data on the admission rate, distribution, in-hospital mortality, and economic burden of traumatic fractures in China is unclear. We aimed to conduct a cross-sectional population-based study to determine such above data at the national level in China. METHODS A national administrative database was used to review all traumatic fracture hospitalizations in China during 2020, from which a total of 2,025,169 inpatients with traumatic fractures was retrieved. Admission rates and in-hospital mortality rates stratified by age, sex, and region were calculated. The causes of traumatic fracture and economic burden were described. RESULTS The admission rate of traumatic fractures of all China population in 2020 was 1.437‰. The admission rate increased with age and varied with genders and causes of injuries. Falls are the leading cause of traumatic fracture hospitalization, followed by road traffic injuries. The most common diagnoses were femoral neck fractures, with a number of 138,377. The in-hospital mortality was 1.209‰. Road traffic injuries led to the highest in-hospital mortality. The median length of stay was 10 days, with the median hospitalization cost of ¥20,900 (about $3,056). CONCLUSION Traumatic fractures are concerning conditions with a high admission rate and in-hospital mortality in China, which are mainly caused by falls and road traffic injuries. The government should implement more public health policies to enhance the health of the elderly and improve transportation safety to prevent traumatic fractures.
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Affiliation(s)
- Bo-xuan Huang
- Department of Orthopedics and Trauma, Peking University People’s Hospital, Beijing, China
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
| | - Yan-hua Wang
- Department of Orthopedics and Trauma, Peking University People’s Hospital, Beijing, China
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
| | - Hai-bo Wang
- Clinical Trial Unit, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Chu Wang
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
- Trauma Medicine Center, Peking University People’s Hospital, Beijing, China
| | - Fei-fei Jin
- National Center for Trauma Medicine, Beijing, China
| | - Jing Li
- National Center for Trauma Medicine, Beijing, China
| | - Lan-xia Gan
- China Standard Medical Information Research Center, Shenzhen, China
| | - Ying Shi
- China Standard Medical Information Research Center, Shenzhen, China
| | - Bao-guo Jiang
- Department of Orthopedics and Trauma, Peking University People’s Hospital, Beijing, China
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
- Trauma Medicine Center, Peking University People’s Hospital, Beijing, China
- *Correspondence: Bao-guo Jiang, ; Dian-ying Zhang,
| | - Dian-ying Zhang
- Department of Orthopedics and Trauma, Peking University People’s Hospital, Beijing, China
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, Beijing, China
- National Center for Trauma Medicine, Beijing, China
- *Correspondence: Bao-guo Jiang, ; Dian-ying Zhang,
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13
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Clark P, Montiel-Ojeda D, Rascón-Pacheco RA, Guagnelli MA, Lopez-Gonzalez D, Bremer A, Borja-Aburto VH. Fracture incidence in children and adolescents 0-19 years old in Mexico: a 12-year cross-sectional analysis. Arch Osteoporos 2022; 17:127. [PMID: 36129580 DOI: 10.1007/s11657-022-01162-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 09/05/2022] [Indexed: 02/03/2023]
Abstract
The objective was to know the behavior of fractures in Mexican children and adolescents. According to our study, fractures in Mexican male children and adolescents seem to be decreasing; however, we still need more national studies to know the possible causes of these fractures. PURPOSE To describe the trends of fractures in Mexican children and adolescents across a 12-year period (2007 to 2019), and to analyze if these trends have changed over time between sexes and age groups. METHODS We identified all fracture cases registered in children and adolescents (0 to 19 years) at the emergency rooms and surgical departments of the Mexican Institute of Social Security between January 2007 and December 2019. We used ICD-10 to classify the fractures. The population was divided into two age groups: children (0 to 9 years) and adolescents (10 to 19 years). Additional information regarding sex and age was gathered up as well. We calculated annual incidence; incidence rates are presented per 10,000 population at risk. Changes in fracture trends were calculated using the average annual percentage change (AAPC). RESULTS Over 12 years, 1,400,443 fractures were registered. The most frequent site of fracture was forearm in 37.1% followed by shoulder (18.1%). The overall rates of fractures have remained similar over 12 years (86.5, IQR 81.0-94.2); however, a significant decrease in fractures was observed the last 3 years (2017-2019). According to the AAPC, only in men, in both age groups, a significant decrease in fractures was observed. CONCLUSION This is the first study in Mexico to follow the behavior of fractures in the pediatric population over 12 years. Fractures seem to be decreasing in children and adolescents. An epidemiological follow-up of childhood fractures is necessary to understand the causes of fractures to generate better prevention and treatment strategies.
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Affiliation(s)
- Patricia Clark
- Clinical Epidemiology Research Unit, Children's Hospital of Mexico Federico Gomez - Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, Mexico
| | - Diana Montiel-Ojeda
- Clinical Epidemiology Research Unit, Children's Hospital of Mexico Federico Gomez - Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, Mexico.
| | | | - Miguel A Guagnelli
- Clinical Epidemiology Research Unit, Children's Hospital of Mexico Federico Gomez - Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, Mexico
| | - Desirée Lopez-Gonzalez
- Clinical Epidemiology Research Unit, Children's Hospital of Mexico Federico Gomez - Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, Mexico
| | - Alhelí Bremer
- Faculty of Medicine and Psychology, Autonomous University of Baja California (UABC), Tijuana, Baja California, Mexico
| | - Víctor Hugo Borja-Aburto
- Teaching and Research Unit, Directorate of Medical Benefits, Mexican Institute of Social Security, IMSS, Mexico City, Mexico
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14
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Jedynasty K, Zięba M, Adamski J, Czech M, Głuszko P, Gozdowski D, Szypowska A, Śliwczyński A, Walicka M, Franek E. Seasonally Dependent Change of the Number of Fractures after 50 Years of Age in Poland-Analysis of Combined Health Care and Climate Datasets. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159467. [PMID: 35954822 PMCID: PMC9368217 DOI: 10.3390/ijerph19159467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 02/04/2023]
Abstract
Aim: The incidence of fractures correlates with many independent and interrelated factors. The aim of the study was to examine trends in fracture incidence and to find possible reasons for changes. Materials and methods: A complete dataset of Polish population aged above 50 from the National Heath Fund—which is a single, state-owned payer for the health service procedures in Poland—covering the years between 2010 and 2015 was analyzed along with climate dataset. Results: The analysis indicated that there was a substantial and statistically significant decrease in the incidence of forearm and hip fractures (p = 0.007 and 0.007, respectively). On the other side, there was a statistically significant increase in incidence of humerus and lumbar fractures (p = 0.002, p < 0.001, respectively). The observed changes (especially decrease in forearm and hip fracture incidence) happened mostly in the cold season and were correlated to mean-temperature changes during the assessed time period. Conclusion: In the analysis based on the dataset obtained from fracture-related database collected in Poland in the years 2010−2015 in the population of patients over 50 years of age, we observed that the changes of fracture incidence during the observation period are associated with and may be dependent on the season (warmer versus colder) and on mean temperature increase during the observation period.
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Affiliation(s)
- Kinga Jedynasty
- Department of Internal Diseases, Endocrinology and Diabetology, Central Clinical Hospital MSWiA, 02-507 Warsaw, Poland; (K.J.); (M.W.)
| | - Mariusz Zięba
- Ministry of Health, 00-952 Warsaw, Poland; (M.Z.); (J.A.)
| | - Jakub Adamski
- Ministry of Health, 00-952 Warsaw, Poland; (M.Z.); (J.A.)
| | - Marcin Czech
- Department of Pharmacoeconomics, Institute of Mother and Child, 01-211 Warsaw, Poland;
| | - Piotr Głuszko
- Department of Rheumatology, National Institute of Geriatrics, Rheumatology, and Rehabilitation, 02-637 Warsaw, Poland;
| | - Dariusz Gozdowski
- Department of Biometry, Warsaw University of Life Science, 02-787 Warsaw, Poland;
| | - Agnieszka Szypowska
- Department of Pediatrics, The First Faculty of Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland;
| | - Andrzej Śliwczyński
- Satellite Campus in Warsaw, University of Humanities and Economics in Lodz, 01-943 Warsaw, Poland;
| | - Magdalena Walicka
- Department of Internal Diseases, Endocrinology and Diabetology, Central Clinical Hospital MSWiA, 02-507 Warsaw, Poland; (K.J.); (M.W.)
- Department of Human Epigenetics, Mossakowski Medical Research Institute, 02-106 Warsaw, Poland
| | - Edward Franek
- Department of Internal Diseases, Endocrinology and Diabetology, Central Clinical Hospital MSWiA, 02-507 Warsaw, Poland; (K.J.); (M.W.)
- Department of Human Epigenetics, Mossakowski Medical Research Institute, 02-106 Warsaw, Poland
- Correspondence: ; Tel.: +48-22-6086591
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15
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Nyrhi L, Kuitunen I, Ponkilainen V, Huttunen TT, Mattila VM. Incidence of Fracture Hospitalization and Surgery in Women Increases Steadily During the Puerperal and Lactation Period: A Retrospective Register-Based Cohort Study in Finland From 1999 to 2018. J Bone Miner Res 2022; 37:1279-1286. [PMID: 35579492 PMCID: PMC9543855 DOI: 10.1002/jbmr.4571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 04/28/2022] [Accepted: 05/08/2022] [Indexed: 11/07/2022]
Abstract
This retrospective cohort study assesses the incidences of major fractures and surgery in women during the puerperium and the lactation period in Finland between January 1, 1999, and December 31, 2018. Using nationwide data from the Finnish Care Register for Health Care and the Finnish Medical Birth Register, all women aged between 15 and 49 years with a fracture hospitalization within 12 months of delivery between 1999 and 2018 were included. During the study period, a total of 3140 fractures after delivery and 152,800 fractures of the female normal population of similar age were hospitalized. The incidence rate after delivery increased from 219/100,000 person-years during the first 4 months to 310 fractures/100,000 person-years during the latter 8 months of the first year after delivery. Altogether, 29% (n = 904/3140) of these fractures were treated operatively. The most common fractures were ankle and distal radius fractures, which made up one-third of all fractures. The incidence of pelvic fracture hospitalization was 15/100,000 person-years at 4 months after delivery, with an operation rate of 22%. Over half of all fractures occurred between 6 and 12 months after delivery (mean 6.6 months). The incidence of fracture hospitalization after delivery increased steadily during the puerperium and the lactation periods but remained lower than in the general population (age-adjusted incidence 554/100,000 person-years) with an incidence rate ratio of 0.51. However, a higher proportion of pelvic fractures were observed in the first months after delivery. Surgical rates were in line with the general population. Fractures of the wrist and ankle made up most of the fractures. © 2022 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Lauri Nyrhi
- Department of Surgery, Central Finland Hospital Nova, Jyväskylä, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Ilari Kuitunen
- Department of Pediatrics, Mikkeli Central Hospital, Mikkeli, Finland.,Institute of Clinical Medicine and Department of Pediatrics, University of Eastern Finland, Kuopio, Finland
| | - Ville Ponkilainen
- Department of Surgery, Central Finland Hospital Nova, Jyväskylä, Finland
| | - Tuomas T Huttunen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Heart Center, Tampere University Hospital, Tampere, Finland
| | - Ville M Mattila
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Musculoskeletal Surgery, Tampere University Hospital, Tampere, Finland
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16
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Chen N, Fong DYT, Wong JYH. Trends in Musculoskeletal Rehabilitation Needs in China From 1990 to 2030: A Bayesian Age-Period-Cohort Modeling Study. Front Public Health 2022; 10:869239. [PMID: 35784203 PMCID: PMC9240767 DOI: 10.3389/fpubh.2022.869239] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/29/2022] [Indexed: 01/07/2023] Open
Abstract
Background Disability and medical expenses caused by musculoskeletal disorders in China had a great impact on the global health and economy. Rehabilitation is essential for dealing with musculoskeletal disorders. However, China's musculoskeletal rehabilitation needs remain unknown. This study aimed to examine the secular trends for musculoskeletal rehabilitation needs in China from 1990 to 2030. Methods Data on musculoskeletal rehabilitation needs were extracted from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) repository. Estimated annual percentage changes (EAPCs) were calculated to reflect fluctuations in the age-standardized rates. The Bayesian age-period-cohort models were used to project rehabilitation needs. Results The number of prevalent cases and years lived with disability (YLD) counts in need of musculoskeletal rehabilitation increased greatly in China from 1990 to 2019. There will be 465.9 million Chinese people in need of rehabilitation, with the age-standardized prevalence rate increasing to 21,151.0 [2.5–97.5% predictive interval (95% PI) 14,872.6–27,429.3] per 100,000 persons in 2030. Similarly, the YLD counts will increase to 40.1 million, with the age-standardized YLD rate increasing to 1,811.2 (95% PI 1,232.5–2,390.0) per 100,000 persons in 2030. Conclusions Increasing trends in musculoskeletal rehabilitation needs were found from 1990 to 2019, which will be anticipated through 2030. Rehabilitation is suggested to be integrated into primary care settings.
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17
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Dunn J, Tamaroff J, DeDio A, Nguyen S, Wade K, Cilenti N, Weber DR, Lynch DR, McCormack SE. Bone Mineral Density and Current Bone Health Screening Practices in Friedreich's Ataxia. Front Neurosci 2022; 16:818750. [PMID: 35368287 PMCID: PMC8964400 DOI: 10.3389/fnins.2022.818750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction Friedreich's Ataxia (FRDA) is a progressive neurological disorder caused by mutations in both alleles of the frataxin (FXN) gene. Impaired bone health is a complication of other disorders affecting mobility, but there is little information regarding bone health in FRDA. Methods Dual energy X-ray absorptiometry (DXA) scan-based assessments of areal bone mineral density (aBMD) in individuals with FRDA were abstracted from four studies at the Children's Hospital of Philadelphia (CHOP). Disease outcomes, including the modified FRDA Rating Scale (mFARS), were abstracted from the FRDA Clinical Outcomes Measures Study (FACOMS), a longitudinal natural history study. A survey regarding bone health and fractures was sent to individuals in FACOMS-CHOP. Results Adults with FRDA (n = 24) have lower mean whole body (WB) (-0.45 vs. 0.33, p = 0.008) and femoral neck (FN) (-0.71 vs. 0.004, p = 0.02) aBMD Z-scores than healthy controls (n = 24). Children with FRDA (n = 10) have a lower WB-less-head (-2.2 vs. 0.19, p < 0.0001) and FN (-1.1 vs. 0.04, p = 0.01) aBMD than a reference population (n = 30). In adults, lower FN aBMD correlated with functional disease severity, as reflected by mFARS (R = -0.56, p = 0.04). Of 137 survey respondents (median age 27 y, 50% female), 70 (51%) reported using wheelchairs as their primary ambulatory device: of these, 20 (29%) reported a history of potentially pathologic fracture and 11 (16%) had undergone DXA scans. Conclusions Low aBMD is prevalent in FRDA, but few of even the highest risk individuals are undergoing screening. Our findings highlight potential missed opportunities for the screening and treatment of low aBMD in FRDA.
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Affiliation(s)
- Julia Dunn
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Jaclyn Tamaroff
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, United States.,Ian M. Burr Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Anna DeDio
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Sara Nguyen
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Kristin Wade
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Nicolette Cilenti
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - David R Weber
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, United States.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - David R Lynch
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, PA, United States.,Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Shana E McCormack
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA, United States.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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18
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Ground truth generalizability affects performance of the artificial intelligence model in automated vertebral fracture detection on plain lateral radiographs of the spine. Spine J 2022; 22:511-523. [PMID: 34737066 DOI: 10.1016/j.spinee.2021.10.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/23/2021] [Accepted: 10/25/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Computer-aided diagnosis with artificial intelligence (AI) has been used clinically, and ground truth generalizability is important for AI performance in medical image analyses. The AI model was trained on one specific group of older adults (aged≧60) has not yet been shown to work equally well in a younger adult group (aged 18-59). PURPOSE To compare the performance of the developed AI model with ensemble method trained with the ground truth for those aged 60 years or older in identifying vertebral fractures (VFs) on plain lateral radiographs of spine (PLRS) between younger and older adult populations. STUDY DESIGN/SETTING Retrospective analysis of PLRS in a single medical institution. OUTCOME MEASURES Accuracy, sensitivity, specificity, and interobserver reliability (kappa value) were used to compare diagnostic performance of the AI model and subspecialists' consensus between the two groups. METHODS Between January 2016 and December 2018, the ground truth of 941 patients (one PLRS per person) aged 60 years and older with 1101 VFs and 6358 normal vertebrae was used to set up the AI model. The framework of the developed AI model includes: object detection with You Only Look Once Version 3 (YOLOv3) at T0-L5 levels in the PLRS, data pre-preprocessing with image-size and quality processing, and AI ensemble model (ResNet34, DenseNet121, and DenseNet201) for identifying or grading VFs. The reported overall accuracy, sensitivity and specificity were 92%, 91% and 93%, respectively, and external validation was also performed. Thereafter, patients diagnosed as VFs and treated in our institution during October 2019 to August 2020 were the study group regardless of age. In total, 258 patients (339 VFs and 1725 normal vertebrae) in the older adult population (mean age 78±10.4; range, 60-106) were enrolled. In the younger adult population (mean age 36±9.43; range, 20-49), 106 patients (120 VFs and 728 normal vertebrae) were enrolled. After identification and grading of VFs based on the Genant method with consensus between two subspecialists', VFs in each PLRS with human labels were defined as the testing dataset. The corresponding CT or MRI scan was used for labeling in the PLRS. The bootstrap method was applied to the testing dataset. RESULTS The model for clinical application, Digital Imaging and Communications in Medicine (DICOM) format, is uploaded directly (available at: http://140.113.114.104/vght_demo/svf-model (grading) and http://140.113.114.104/vght demo/svf-model2 (labeling). Overall accuracy, sensitivity and specificity in the older adult population were 93.36% (95% CI 93.34%-93.38%), 88.97% (95% CI 88.59%-88.99%) and 94.26% (95% CI 94.23%-94.29%), respectively. Overall accuracy, sensitivity and specificity in the younger adult population were 93.75% (95% CI 93.7%-93.8%), 65.00% (95% CI 64.33%-65.67%) and 98.49% (95% CI 98.45%-98.52%), respectively. Accuracy reached 100% in VFs grading once the VFs were labeled accurately. The unique pattern of limbus-like VFs, 43 (35.8%) were investigated only in the younger adult population. If limbus-like VFs from the dataset were not included, the accuracy increased from 93.75% (95% CI 93.70%-93.80%) to 95.78% (95% CI 95.73%-95.82%), sensitivity increased from 65.00% (95% CI 64.33%-65.67%) to 70.13% (95% CI 68.98%-71.27%) and specificity remained unchanged at 98.49% (95% CI 98.45%-98.52%), respectively. The main causes of false negative results in older adults were patients' lung markings, diaphragm or bowel airs (37%, n=14) followed by type I fracture (29%, n=11). The main causes of false negatives in younger adults were limbus-like VFs (45%, n=19), followed by type I fracture (26%, n=11). The overall kappa between AI discrimination and subspecialists' consensus in the older and younger adult populations were 0.77 (95% CI, 0.733-0.805) and 0.72 (95% CI, 0.6524-0.80), respectively. CONCLUSIONS The developed VF-identifying AI ensemble model based on ground truth of older adults achieved better performance in identifying VFs in older adults and non-fractured thoracic and lumbar vertebrae in the younger adults. Different age distribution may have potential disease diversity and implicate the effect of ground truth generalizability on the AI model performance.
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Heller IS, Guenther CA, Meireles AM, Talbot WS, Kingsley DM. Characterization of mouse Bmp5 regulatory injury element in zebrafish wound models. Bone 2022; 155:116263. [PMID: 34826632 PMCID: PMC9007314 DOI: 10.1016/j.bone.2021.116263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 11/21/2022]
Abstract
Many key signaling molecules used to build tissues during embryonic development are re-activated at injury sites to stimulate tissue regeneration and repair. Bone morphogenetic proteins provide a classic example, but the mechanisms that lead to reactivation of BMPs following injury are still unknown. Previous studies have mapped a large "injury response element" (IRE) in the mouse Bmp5 gene that drives gene expression following bone fractures and other types of injury. Here we show that the large mouse IRE region is also activated in both zebrafish tail resection and mechanosensory hair cell injury models. Using the ability to test multiple constructs and image temporal and spatial dynamics following injury responses, we have narrowed the original size of the mouse IRE region by over 100 fold and identified a small 142 bp minimal enhancer that is rapidly induced in both mesenchymal and epithelial tissues after injury. These studies identify a small sequence that responds to evolutionarily conserved local signals in wounded tissues and suggest candidate pathways that contribute to BMP reactivation after injury.
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Affiliation(s)
- Ian S Heller
- Department of Developmental Biology, Stanford University School of Medicine, United States of America
| | - Catherine A Guenther
- Department of Developmental Biology, Stanford University School of Medicine, United States of America; Howard Hughes Medical Institute, Stanford University School of Medicine, United States of America
| | - Ana M Meireles
- Department of Developmental Biology, Stanford University School of Medicine, United States of America
| | - William S Talbot
- Department of Developmental Biology, Stanford University School of Medicine, United States of America
| | - David M Kingsley
- Department of Developmental Biology, Stanford University School of Medicine, United States of America; Howard Hughes Medical Institute, Stanford University School of Medicine, United States of America.
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20
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Wu CY, Lee HS, Tsai CF, Hsu YH, Yang HY. Secular trends in the incidence of fracture hospitalization between 2000 and 2015 among the middle-aged and elderly persons in Taiwan: A nationwide register-based cohort study. Bone 2022; 154:116250. [PMID: 34740812 DOI: 10.1016/j.bone.2021.116250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 10/25/2021] [Accepted: 10/29/2021] [Indexed: 11/02/2022]
Abstract
OBJECTIVE Fractures are a common reason for hospital admissions. However, regional and short-term studies show a varying incidence rate (IR) of fractures, and most of the surveys were conducted from only a few medical centers. Therefore, this study aims to investigate the epidemiological data of fracture hospitalizations of middle-aged and elderly persons in Taiwan between 2000 and 2015. MATERIALS AND METHODS Data from fractures occurring between 2000 and 2015 were obtained from the National Health Insurance Research Database in Taiwan for this study. The IR of fracture admission in patients, aged 40 years or older at the time of admission and first-time diagnosed with a fracture following admission, was calculated. RESULTS We found that the IR of the fracture hospitalizations declined considerably from 95.70 per 10,000 person-years in 2000, to 68.48 per 10,000 person-years in 2015. The three most common fracture hospitalizations accounting for more than 50% of all fractures were fractures of the femur/hip, radius or ulna, and vertebral column. The IR of fracture hospitalization increased with age and was found to be higher in women than in men. The most common cause of fracture hospitalization for men and patients under 65 years of age was traffic accidents. In contrast, falls were the most frequent causes of fracture hospitalization for women and patients over 65 years of age. CONCLUSION The present study furnishes an updated picture of the incidence of fracture hospitalization over a 16-year period among middle-aged and elderly persons in Taiwan.
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Affiliation(s)
- Cheng-Yi Wu
- Department of Orthopedics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan; Department of Nursing, Chung Jen Junior College of Nursing, Health Science and Management, Chia-Yi City, Taiwan
| | - Herng-Sheng Lee
- Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Ching-Fang Tsai
- Department of Medical Research, Clinical Medicine Research Center, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan
| | - Yueh-Han Hsu
- Department of Medical Research, China Medical University Hospital and China Medical University, Taichung, Taiwan; Department of Internal Medicine, Division of Nephrology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan; Department of Nursing, Min-Hwei College of Health Care Management, Tainan, Taiwan
| | - Hsin-Yi Yang
- Department of Medical Research, Clinical Medicine Research Center, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City, Taiwan.
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21
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Stattin K, Höijer J, Hållmarker U, Baron JA, Larsson SC, Wolk A, Michaëlsson K, Byberg L. Fracture risk across a wide range of physical activity levels, from sedentary individuals to elite athletes. Bone 2021; 153:116128. [PMID: 34302997 DOI: 10.1016/j.bone.2021.116128] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/21/2021] [Accepted: 07/19/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To examine how physical activity is associated with risk of different fracture outcomes across the full range of physical activity. METHODS By combining information from three cohort studies and using generalized structural equation modelling, we estimated a continuous unitless latent variable reflecting physical activity that ranged from sedentary through elite athlete levels. Associations between physical activity and fracture outcomes were assessed with proportional hazards regression using restricted cubic splines with the mean physical activity (corresponding to 20-40 min walking or bicycling/day or 2-3 h exercise/week) as reference. RESULTS Among 63,980 men and women (49-68 years) and during 13 years of follow-up, 8506 fractures occurred, including 2164 distal forearm, 779 proximal humerus, 346 clinical spine, and 908 hip fractures. Both lower and higher physical activity was associated with higher risk of any fracture compared to the mean. Physical activity at 1 standard deviation (SD) below the mean, corresponding to walking/bicycling <20 min/day or exercising <1-1 h/week, was associated with a lower risk of distal forearm fracture (hazard ratio [HR]: 0.92, 95% confidence interval [CI]: 0.85-0.99) and higher risk of hip fracture (HR: 1.24, 95% CI: 1.13-1.37), but no associations were seen above the mean physical activity level for these fractures. Physical activity was not associated with proximal humerus fracture but had a possible U-shaped association with clinical spine fracture. CONCLUSION Physical activity was non-linearly associated with fracture risk and the association differed across fracture sites. Up to 2-3 h weekly exercise is beneficial for the prevention of hip fracture but may increase the risk of distal forearm fracture.
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Affiliation(s)
- Karl Stattin
- Department of Surgical Sciences, Medical Epidemiology, Uppsala University, Uppsala, Sweden
| | - Jonas Höijer
- Department of Surgical Sciences, Medical Epidemiology, Uppsala University, Uppsala, Sweden
| | - Ulf Hållmarker
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden; Department of Internal Medicine, Mora Lasarett, Mora, Sweden
| | - John A Baron
- Department of Surgical Sciences, Medical Epidemiology, Uppsala University, Uppsala, Sweden; Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA; Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Susanna C Larsson
- Department of Surgical Sciences, Medical Epidemiology, Uppsala University, Uppsala, Sweden
| | - Alicja Wolk
- Department of Surgical Sciences, Medical Epidemiology, Uppsala University, Uppsala, Sweden; Unit of Cardiovascular and Nutritional Epidemiology, Institute for Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Karl Michaëlsson
- Department of Surgical Sciences, Medical Epidemiology, Uppsala University, Uppsala, Sweden
| | - Liisa Byberg
- Department of Surgical Sciences, Medical Epidemiology, Uppsala University, Uppsala, Sweden.
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22
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Beetz G, Herrero Babiloni A, Jodoin M, Charlebois-Plante C, Lavigne GJ, De Beaumont L, Rouleau DM. Relevance of Sleep Disturbances to Orthopaedic Surgery: A Current Concepts Narrative and Practical Review. J Bone Joint Surg Am 2021; 103:2045-2056. [PMID: 34478407 DOI: 10.2106/jbjs.21.00176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
➤ Sleep disturbances can increase the risk of falls and motor vehicle accidents and may reduce bone density. ➤ Poor sleep can lead to worse outcomes after fracture, such as chronic pain and delayed recovery. ➤ Orthopaedic surgeons can play an important role in the screening of sleep disorders among their patients.
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Affiliation(s)
- Gabrielle Beetz
- Montreal Sacré-Coeur Hospital, Montreal, Quebec, Canada.,Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Alberto Herrero Babiloni
- Montreal Sacré-Coeur Hospital, Montreal, Quebec, Canada.,Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
| | - Marianne Jodoin
- Montreal Sacré-Coeur Hospital, Montreal, Quebec, Canada.,Department of Psychology, University of Montreal, Montreal, Quebec, Canada
| | | | - Gilles J Lavigne
- Montreal Sacré-Coeur Hospital, Montreal, Quebec, Canada.,Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.,Faculty of Dental Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Louis De Beaumont
- Montreal Sacré-Coeur Hospital, Montreal, Quebec, Canada.,Department of Surgery, University of Montreal, Montreal, Quebec, Canada
| | - Dominique M Rouleau
- Montreal Sacré-Coeur Hospital, Montreal, Quebec, Canada.,Department of Surgery, University of Montreal, Montreal, Quebec, Canada
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23
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Schade AT, Mbowuwa F, Chidothi P, MacPherson P, Graham SM, Martin C, Harrison WJ, Chokotho L. Epidemiology of fractures and their treatment in Malawi: Results of a multicentre prospective registry study to guide orthopaedic care planning. PLoS One 2021; 16:e0255052. [PMID: 34347803 PMCID: PMC8336825 DOI: 10.1371/journal.pone.0255052] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/08/2021] [Indexed: 11/26/2022] Open
Abstract
IMPORTANCE Injuries cause 30% more deaths than HIV, TB and malaria combined, and a prospective fracture care registry was established to investigate the fracture burden and treatment in Malawi to inform evidence-based improvements. OBJECTIVE To use the analysis of prospectively-collected fracture data to develop evidence-based strategies to improve fracture care in Malawi and other similar settings. DESIGN Multicentre prospective registry study. SETTING Two large referral centres and two district hospitals in Malawi. PARTICIPANTS All patients with a fracture (confirmed by radiographs)-including patients with multiple fractures-were eligible to be included in the registry. EXPOSURE All fractures that presented to two urban central and two rural district hospitals in Malawi over a 3.5-year period (September 2016 to March 2020). MAIN OUTCOME(S) AND MEASURE(S) Demographics, characteristics of injuries, and treatment outcomes were collected on all eligible participants. RESULTS Between September 2016 and March 2020, 23,734 patients were enrolled with a median age of 15 years (interquartile range: 10-35 years); 68.7% were male. The most common injuries were radius/ulna fractures (n = 8,682, 36.8%), tibia/fibula fractures (n = 4,036, 17.0%), humerus fractures (n = 3,527, 14.9%) and femoral fractures (n = 2,355, 9.9%). The majority of fractures (n = 21,729, 91.6%) were treated by orthopaedic clinical officers; 88% (20,885/2,849) of fractures were treated non-operatively, and 62.7% were treated and sent home on the same day. Open fractures (OR:53.19, CI:39.68-72.09), distal femoral fractures (OR:2.59, CI:1.78-3.78), patella (OR:10.31, CI:7.04-15.07), supracondylar humeral fractures (OR:3.10, CI:2.38-4.05), ankle fractures (OR:2.97, CI:2.26-3.92) and tibial plateau fractures (OR:2.08, CI:1.47-2.95) were more likely to be treated operatively compared to distal radius fractures. CONCLUSIONS AND RELEVANCE The current model of fracture care in Malawi is such that trained orthopaedic surgeons manage fractures operatively in urban referral centres whereas orthopaedic clinical officers mainly manage fractures non-operatively in both district and referral centres. We recommend that orthopaedic surgeons should supervise orthopaedic clinical officers to manage non operative injuries in central and district hospitals. There is need for further studies to assess the clinical and patient reported outcomes of these fracture cases, managed both operatively and non-operatively.
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Affiliation(s)
- Alexander Thomas Schade
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | | | | | - Peter MacPherson
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
- London School of Hygiene and Tropical Medicine, Blantyre, United Kingdom
| | - Simon Matthew Graham
- Institute of Population Health Sciences, University of Liverpool, Liverpool, United Kingdom
- Department of Orthopaedic and Trauma Surgery, Liverpool University Teaching Hospital Trust, Liverpool, United Kingdom
| | | | - William James Harrison
- AO-Alliance Foundation, Blantyre, Malawi
- Department of Orthopaedic and Trauma Surgery, Liverpool University Teaching Hospital Trust, Liverpool, United Kingdom
- Countess of Chester NHS Foundation Trust, Blantyre, Malawi
| | - Linda Chokotho
- AO-Alliance Foundation, Blantyre, Malawi
- Department of Surgery, College of Medicine, University of Malawi, Blantyre, Malawi
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24
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Komisar V, Robinovitch SN. The Role of Fall Biomechanics in the Cause and Prevention of Bone Fractures in Older Adults. Curr Osteoporos Rep 2021; 19:381-390. [PMID: 34105101 DOI: 10.1007/s11914-021-00685-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/22/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Adults over age 65 experience the highest rates of bone fracture, and 90% of fractures in older adults are caused by falls from standing height or lower. Advances in fracture prevention rely on our ability to prevent falls, reduce the severity of falls, and enhance the resistance of bone to trauma. To help guide these efforts, we need improved understanding on the types of falls that cause fractures. RECENT FINDINGS In this review, we describe recent evidence on how the mechanics of falls in older adults influence the risk for fractures to the hip, wrist, vertebrae, and humerus. We discuss how fracture risk depends on fall height, fall direction, and landing configuration. We also review the benefits of exercise, wearable protective gear, and environmental modifications in preventing fractures in older adults. Our findings highlight promising new directions in fracture prevention, and the need for collaboration between the bone and falls research communities to implement proven strategies and generate new solutions.
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Affiliation(s)
- Vicki Komisar
- School of Engineering, The University of British Columbia, Kelowna, BC, Canada
| | - Stephen Neil Robinovitch
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada.
- School of Engineering Science, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.
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25
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Thoors O, Mellner C, Hedström M. Good clinical outcome for the majority of younger patients with hip fractures: a Swedish nationwide study on 905 patients younger than 50 years of age. Acta Orthop 2021; 92:292-296. [PMID: 33478319 PMCID: PMC8231413 DOI: 10.1080/17453674.2021.1876996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background and purpose - Studies regarding hip fractures in young patients are rare since the patient population is small. We assessed clinical outcomes 4 months after hip fracture in patients < 50 years of age and whether there were differences between sexes and different age groups.Patients and methods - We included adult patients < 50 years with a hip fracture between January 1, 2014 and December 31, 2018. Baseline data were extracted from the Swedish Registry for Hip Fracture Patients and Treatment (RIKSHÖFT) and mortality data was obtained from Statistics Sweden. The outcome variables were change of walking ability, pain in fractured hip, use of analgesics, living conditions, and mortality rate at 4 months.Results - Of the 905 patients included, 72% were men and femoral neck fractures were most common (58%). 4 months after surgery, 23% used a walking aid and 7% reported severe pain. Women reported slightly more pain and higher usage of analgesics. Patients aged 40-49 reported higher usage of analgesics than patients aged 15-39, although the latter group reported more pain. Nearly all of those who lived independently before fracture did so at 4 months. The mortality rate was < 1%.Interpretation - Most patients did not use any walking aid and few had severe pain at 4 months. Furthermore, a hip fracture is not a life-threatening event in a patient < 50 years. The living conditions did not change for those who lived independently before the fracture.
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Affiliation(s)
- Oscar Thoors
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm; ,*Correspondence:
| | | | - Margareta Hedström
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm; ,Department of Orthopedics, Karolinska Hospital Stockholm, Sweden
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26
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Lundin N, Huttunen TT, Enocson A, Marcano AI, Felländer-Tsai L, Berg HE. Epidemiology and mortality of pelvic and femur fractures-a nationwide register study of 417,840 fractures in Sweden across 16 years: diverging trends for potentially lethal fractures. Acta Orthop 2021; 92:323-328. [PMID: 33506706 PMCID: PMC8231409 DOI: 10.1080/17453674.2021.1878329] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background and purpose - Fractures of the pelvis and femur are serious and potentially lethal injuries affecting primarily older, but also younger individuals. Long-term trends on incidence rates and mortality might diverge for these fractures, and few studies compare trends within a complete adult population. We investigated and compared incidence and mortality rates of pelvic, hip, femur shaft, and distal femur fractures in the Swedish adult population.Patients and methods - We analyzed data on all adult patients ≥ 18 years in Sweden with a pelvic, hip, femur shaft, or distal femur fracture, through the Swedish National Patient Register. The studied variables were fracture type, age, sex, and 1-year mortality.Results - While incidence rates for hip fracture decreased by 18% (from 280 to 229 per 105 person-years) from 2001 to 2016, incidence rates for pelvic fracture increased by 25% (from 64 to 80 per 105 person-years). Incidence rates for femur shaft and distal femur fracture remained stable at rates of 15 and 13 per 105 person-years respectively. 1-year mortality after hip fracture was 25%, i.e., higher than for pelvic, femur shaft, and distal femur fracture where mortality rates were 20-21%. Females had an almost 30% lower risk of death within 1 year after hip fracture compared with males.Interpretation - Trends on fracture incidence for pelvic and femur fractures diverged considerably in Sweden between 2001 and 2016. While incidence rates for femur fractures (hip, femur shaft, and distal femur) decreased or remained constant during the studied years, pelvic fracture incidence increased. Mortality rates were different between the fractures, with the highest mortality among patients with hip fracture.
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Affiliation(s)
- Natalie Lundin
- Department of Molecular Medicine and Surgery, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Tuomas T Huttunen
- Division of Orthopedics and Biotechnology, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
- Faculty of Medicine and Health Technology, Tampere University, Tampere University Hospital, Tampere, Finland
- Department of Emergency, Anesthesia and Pain Medicine, Tampere University Hospital, Tampere, Finland
| | - Anders Enocson
- Department of Molecular Medicine and Surgery, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Alejandro I Marcano
- Division of Orthopedics and Biotechnology, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Li Felländer-Tsai
- Division of Orthopedics and Biotechnology, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Hans E Berg
- Division of Orthopedics and Biotechnology, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
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27
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Kannikeswaran S, French ZP, Walsh K, Swallow J, Caird MS, Whitney DG. Fracture characteristics by age, sex, and ambulatory status among individuals with cerebral palsy: a descriptive study. Disabil Rehabil 2021; 44:4806-4812. [PMID: 33962527 DOI: 10.1080/09638288.2021.1921860] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE To evaluate clinically relevant fracture characteristics by age, sex, and ambulatory status among individuals with cerebral palsy. METHODS Fracture location, energy of fracture, and activities that lead to a fracture were assessed among a clinic-based sample of children (0-17 years; n = 57) and adults (18-70 years; n = 58) with cerebral palsy that sustained a fracture by sex and gross motor function classification system (GMFCS) I-III vs. IV/V. RESULTS Proportion of fractures that were low-energy was 67-99% for children and 69-84% for adults. ∼2/3rds of fractures were at the lower extremities, with the distal femur being the most common site for children (44%) and the foot/ankle for adults (40%); however, there were age, sex, and ambulatory effects, such that 43% of adults GMFCS IV/V and 32% of women had a distal femur fracture. GMFCS I-III were more likely to fracture from functionally complex activities, while GMFCS IV/V were more likely to fracture from wheelchair/transfers/limb-stuck and incidental findings. CONCLUSIONS The majority of fractures were low-energy and occurred in the lower extremities, with effects by age, sex, and GMFCS. Activities that led to a fracture also differed by age and GMFCS, which can be used to design fracture prevention interventions in addition to bolstering skeletal mass and architecture.Implications for rehabilitationSkeletal fragility is a major problem for individuals with cerebral palsy (CP) across the lifespan leading to an increased risk of fragility fractures.Rehabilitation is a prime clinical intervention to prevent fractures from occurring and improving post-fracture healing and function; yet, effective rehabilitation interventions require knowledge of fracture characteristics, such as where fractures are occurring and the activities that lead to the fracture event specific to individuals with CP.Using a clinic-based sample of 0-70 year olds with CP, we describe salient fracture characteristics based on age, sex, and ambulatory status to enhance translation into clinical and rehabilitation practice.
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Affiliation(s)
- Sanjana Kannikeswaran
- Department of Physical Medicine and Rehabilitation, University of Michigan, Ann Arbor, MI, USA
| | - Zachary P French
- Department of Orthopedics and Rehabilitation, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Kevin Walsh
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Jennylee Swallow
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Michelle S Caird
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Daniel G Whitney
- Department of Physical Medicine and Rehabilitation, University of Michigan, Ann Arbor, MI, USA.,Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor, MI, USA
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28
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Im C, Li N, Moon W, Liu Q, Morton LM, Leisenring WM, Howell RM, Chow EJ, Sklar CA, Wilson CL, Wang Z, Sapkota Y, Chemaitilly W, Ness KK, Hudson MM, Robison LL, Bhatia S, Armstrong GT, Yasui Y. Genome-wide Association Studies Reveal Novel Locus With Sex-/Therapy-Specific Fracture Risk Effects in Childhood Cancer Survivors. J Bone Miner Res 2021; 36:685-695. [PMID: 33338273 PMCID: PMC8044050 DOI: 10.1002/jbmr.4234] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/04/2020] [Accepted: 12/10/2020] [Indexed: 12/18/2022]
Abstract
Childhood cancer survivors treated with radiation therapy (RT) and osteotoxic chemotherapies are at increased risk for fractures. However, understanding of how genetic and clinical susceptibility factors jointly contribute to fracture risk among survivors is limited. To address this gap, we conducted genome-wide association studies of fracture risk after cancer diagnosis in 2453 participants of European ancestry from the Childhood Cancer Survivor Study (CCSS) with 930 incident fractures using Cox regression models (ie, time-to-event analysis) and prioritized sex- and treatment-stratified genetic associations. We performed replication analyses in 1417 survivors of European ancestry with 652 incident fractures from the St. Jude Lifetime Cohort Study (SJLIFE). In discovery, we identified a genome-wide significant (p < 5 × 10-8 ) fracture risk locus, 16p13.3 (HAGHL), among female CCSS survivors (n = 1289) with strong evidence of sex-specific effects (psex-heterogeneity < 7 × 10-6 ). Combining discovery and replication data, rs1406815 showed the strongest association (hazard ratio [HR] = 1.43, p = 8.2 × 10-9 ; n = 1935 women) at this locus. In treatment-stratified analyses in the discovery cohort, the association between rs1406815 and fracture risk among female survivors with no RT exposures was weak (HR = 1.22, 95% confidence interval [CI] 0.95-1.57, p = 0.11) but increased substantially among those with greater head/neck RT doses (any RT: HR = 1.88, 95% CI 1.54-2.28, p = 2.4 × 10-10 ; >36 Gray only: HR = 3.79, 95% CI 1.95-7.34, p = 8.2 × 10-5 ). These head/neck RT-specific HAGHL single-nucleotide polymorphism (SNP) effects were replicated in female SJLIFE survivors. In silico bioinformatics analyses suggest these fracture risk alleles regulate HAGHL gene expression and related bone resorption pathways. Genetic risk profiles integrating this locus may help identify female survivors who would benefit from targeted interventions to reduce fracture risk. © 2020 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Cindy Im
- School of Public Health, University of Alberta, Edmonton, Canada
| | - Nan Li
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Wonjong Moon
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Qi Liu
- School of Public Health, University of Alberta, Edmonton, Canada
| | - Lindsay M Morton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
| | - Wendy M Leisenring
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Rebecca M Howell
- Department of Radiation Physic, MD Anderson Cancer Center, Houston, TX, USA
| | - Eric J Chow
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Charles A Sklar
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, NY, New York, USA
| | - Carmen L Wilson
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Zhaoming Wang
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA.,Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Yadav Sapkota
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Wassim Chemaitilly
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA.,Division of Endocrinology, Department of Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Kirsten K Ness
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Melissa M Hudson
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA.,Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Leslie L Robison
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Smita Bhatia
- Institute for Cancer Outcomes and Survivorship, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Gregory T Armstrong
- Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA.,Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Yutaka Yasui
- School of Public Health, University of Alberta, Edmonton, Canada.,Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN, USA
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Assimon MM, Flythe JE. Zolpidem Versus Trazodone Initiation and the Risk of Fall-Related Fractures among Individuals Receiving Maintenance Hemodialysis. Clin J Am Soc Nephrol 2021; 16:88-97. [PMID: 33355192 PMCID: PMC7792650 DOI: 10.2215/cjn.10070620] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 11/09/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Zolpidem, a nonbenzodiazepine hypnotic, and trazodone, a sedating antidepressant, are the most common medications used to treat insomnia in the United States. Both drugs have side effect profiles (e.g., drowsiness, dizziness, and cognitive and motor impairment) that can heighten the risk of falls and fractures. Despite widespread zolpidem and trazodone use, little is known about the comparative safety of these medications in patients receiving hemodialysis, a vulnerable population with an exceedingly high fracture rate. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Using data from the United States Renal Data System registry (2013-2016), we conducted a retrospective cohort study to investigate the association between the initiation of zolpidem versus trazodone therapy and the 30-day risk of hospitalized fall-related fractures among Medicare-enrolled patients receiving maintenance hemodialysis. We used an active comparator new-user design and estimated 30-day inverse probability of treatment-weighted hazard ratios and risk differences. We treated death as a competing event. RESULTS A total of 31,055 patients were included: 18,941 zolpidem initiators (61%) and 12,114 trazodone initiators (39%). During the 30-day follow-up period, 101 fall-related fractures occurred. Zolpidem versus trazodone initiation was associated with a higher risk of hospitalized fall-related fracture (weighted hazard ratio, 1.71; 95% confidence interval, 1.11 to 2.63; weighted risk difference, 0.17%; 95% confidence interval, 0.07% to 0.29%). This association was more pronounced among individuals prescribed higher zolpidem doses (hazard ratio, 1.85; 95% confidence interval, 1.10 to 3.01; and risk difference, 0.20%; 95% confidence interval, 0.04% to 0.38% for higher-dose zolpidem versus trazodone; and hazard ratio, 1.60; 95% confidence interval, 1.01 to 2.55 and risk difference, 0.14%; 95% confidence interval, 0.03% to 0.27% for lower-dose zolpidem versus trazodone). Sensitivity analyses using longer follow-up durations yielded similar results. CONCLUSIONS Among individuals receiving maintenance hemodialysis, zolpidem initiators had a higher risk of hospitalized fall-related fracture compared with trazodone initiators. PODCAST This article contains a podcast at https://www.asn-online.org/media/podcast/CJASN/2020_12_18_CJN10070620_final.mp3.
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Affiliation(s)
- Magdalene M. Assimon
- Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina Kidney Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Jennifer E. Flythe
- Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina Kidney Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina,Cecil G. Sheps Center for Health Services Research, University of North Carolina, Chapel Hill, North Carolina
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30
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Roberts JL, Liu G, Darby TM, Fernandes LM, Diaz-Hernandez ME, Jones RM, Drissi H. Bifidobacterium adolescentis supplementation attenuates fracture-induced systemic sequelae. Biomed Pharmacother 2020; 132:110831. [PMID: 33022534 PMCID: PMC9979243 DOI: 10.1016/j.biopha.2020.110831] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/24/2020] [Accepted: 09/28/2020] [Indexed: 12/13/2022] Open
Abstract
The gut microbiota is an important contributor to both health and disease. While previous studies have reported on the beneficial influences of the gut microbiota and probiotic supplementation on bone health, their role in recovery from skeletal injury and resultant systemic sequelae remains unexplored. This study aimed to determine the extent to which probiotics could modulate bone repair by dampening fracture-induced systemic inflammation. Our findings demonstrate that femur fracture induced an increase in gut permeability lasting up to 7 days after trauma before returning to basal levels. Strikingly, dietary supplementation with Bifidobacterium adolescentis augmented the tightening of the intestinal barrier, dampened the systemic inflammatory response to fracture, accelerated fracture callus cartilage remodeling, and elicited enhanced protection of the intact skeleton following fracture. Together, these data outline a mechanism whereby dietary supplementation with beneficial bacteria can be therapeutically targeted to prevent the systemic pathologies induced by femur fracture.
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Affiliation(s)
- Joseph L. Roberts
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA, USA,Nutrition and Health Sciences Program, Emory University, Atlanta, GA, USA
| | - Guanglu Liu
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA, USA
| | - Trevor M. Darby
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Lorenzo M. Fernandes
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA, USA
| | | | - Rheinallt M. Jones
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Hicham Drissi
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA, USA; Nutrition and Health Sciences Program, Emory University, Atlanta, GA, USA.
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31
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FN1 promotes chondrocyte differentiation and collagen production via TGF-β/PI3K/Akt pathway in mice with femoral fracture. Gene 2020; 769:145253. [PMID: 33098939 DOI: 10.1016/j.gene.2020.145253] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/17/2020] [Accepted: 10/16/2020] [Indexed: 11/24/2022]
Abstract
Fibronectin (FN) functions as a potent stimulator of osteogenic differentiation, and bone fracture healing. In FN family, FN1 acts as an interactive protein gene product to mediate chondrocyte adhesion. However, its effect on fracture healing remains elusive. Therefore, we aimed to investigate the involvement of FN1 in fracture healing. Hard callus formations were found at fracture site with thicker periosteum in lateral cortical bone area outside the fracture site in model mice. The decreased number of osteogenic cells in the middle of the callus region and increased extracellular matrix were suggestive of successful induction. Immunoblotting and RT-qPCR revealed that expression of FN1 was increased in tissues of fracture mice. As displayed by Safranin-fast green staining hematoxylin-eosin staining, the overexpression of FN1 at fracture site promoted osteoid formation and chondrocyte differentiation. The stimulating role of FN1 in collagen production was evidenced by increased levels of Col2, Col1, ColX, Osteonectin, and Osteocalcin and enhanced BMD, BV, BV/TV and Tb.Th values verified by immunoblotting and immunohistochemical staining. Additionally, the upregulation of FN1 contributed to promoted TGF-β, c-Caspase-9/t-Caspase-9 ratio and NF-κB p65 protein expression as well as lowered p-PI3K/PI3K and p-AKT/AKT ratios, implying the positive correlation between FN1 and the TGF-β/PI3K/Akt signaling pathway. The key findings of the present study provided evidence indicating that overexpression of FN1 contributes to fracture healing by activation of the TGF-β/PI3K/Akt signaling pathway.
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Yao C, Sun J, Wu J, Zhou Z, Liu F, Tao R, Zhang Y. Clinical outcomes of Ti-Ni shape-memory patella concentrator combined with cannulated compression screws in the treatment of C2 and C3 patella fracture: a retrospective study of 54 cases. BMC Musculoskelet Disord 2020; 21:506. [PMID: 32736553 PMCID: PMC7395425 DOI: 10.1186/s12891-020-03536-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 07/23/2020] [Indexed: 12/04/2022] Open
Abstract
Background Ti-Ni shape-memory patella concentrator (TNSMPC) has been designed as an alternative approach for fixation of patella fracture, which has some advantages like higher hardness, higher tenacity, better wearing resistance, excellent corrosion resistance and desired histocompatibility. The present study was to investigate the efficiency of TNSMPC combined with cannulated compression screws in the treatment of comminuted patella fractures. Methods Between January 2014 and December 2017, 54 patients of C2 and C3 patella fractures underwent open reduction and internal fixation with TNSMPC combined with cannulated compression screws. All the patients got standard postoperative rehabilitation programs and were regularly followed up for at least 12 months after the operation. X-rays, knee functions and life quality were evaluated during the follow-up. Results All the patients achieved bone healing and recovery of knee function with low incidence of complications according to outcomes of X-rays and questionnaires. The average operation time and blood loss during surgery were 77.5 ± 25.12 min and 24.25 ± 4.70 ml respectively. The Knee Outcome Survey Activities of Daily Living Scale, the range of motion and the 36-item short-form heath survey after the operation were all improved. According to the Bostman’s criteria, the excellent to good rate was 92.6%. Conclusion TNSMPC combined with cannulated compression screws is an effective internal fixation method for C2 and C3 patella fracture with excellent clinical outcomes. In addition, the operation does not increase extra technique difficulty or tissue damage relatively, which is worth promotion.
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Affiliation(s)
- Chen Yao
- Department of Orthopaedics, The Affiliated Hospital of Nantong University, Nantong City, Jiangsu Province, PR China
| | - Jie Sun
- Department of Orthopaedics, The Affiliated Hospital of Nantong University, Nantong City, Jiangsu Province, PR China
| | - Jiancheng Wu
- Department of Orthopaedics, The Affiliated Hospital of Nantong University, Nantong City, Jiangsu Province, PR China
| | - Zhenyu Zhou
- Department of Orthopaedics, The Affiliated Hospital of Nantong University, Nantong City, Jiangsu Province, PR China
| | - Fan Liu
- Department of Orthopaedics, The Affiliated Hospital of Nantong University, Nantong City, Jiangsu Province, PR China
| | - Ran Tao
- Department of Orthopaedics, The Affiliated Hospital of Nantong University, Nantong City, Jiangsu Province, PR China
| | - Yafeng Zhang
- Department of Orthopaedics, The Affiliated Hospital of Nantong University, Nantong City, Jiangsu Province, PR China.
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Wiepjes CM, de Blok CJ, Staphorsius AS, Nota NM, Vlot MC, de Jongh RT, den Heijer M. Fracture Risk in Trans Women and Trans Men Using Long-Term Gender-Affirming Hormonal Treatment: A Nationwide Cohort Study. J Bone Miner Res 2020; 35:64-70. [PMID: 31487065 PMCID: PMC7003754 DOI: 10.1002/jbmr.3862] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 08/16/2019] [Accepted: 08/23/2019] [Indexed: 01/15/2023]
Abstract
Concerns about bone health in transgender people using gender-affirming hormonal treatment (HT) exist, but the fracture risk is not known. In this nationwide cohort study, we aimed to compare the fracture incidence in transgender people using long-term HT with an age-matched reference population. All adult transgender people who started HT before 2016 at our gender-identity clinic were included and were linked to a random population-based sample of 5 age-matched reference men and 5 age-matched reference women per person. Fracture incidence was determined using diagnoses from visits to hospital emergency rooms nationwide between 2013 and 2015. A total of 1089 trans women aged <50 years (mean 38 ± 9 years) and 934 trans women aged ≥50 years (mean 60 ± 8 years) using HT for median 8 (interquartile range [IQR] 3-16) and 19 (IQR 11-29) years, respectively, were included. A total of 2.4% of the trans women aged <50 years had a fracture, whereas 3.0% of the age-matched reference men (odds ratio [OR] = 0.78, 95% confidence interval [CI] 0.51-1.19) and 1.6% of the age-matched reference women (OR = 1.49, 95% CI 0.96-2.32) experienced a fracture. In trans women aged ≥50 years, 4.4% experienced a fracture compared with 2.4% of the age-matched reference men (OR = 1.90, 95% CI 1.32-2.74) and 4.2% of the age-matched reference women (OR = 1.05, 95% CI 0.75-1.49). A total of 1036 trans men (40 ± 14 years) using HT for median 9 (IQR 2-22) years were included. Fractures occurred in 1.7% of the trans men, 3.0% of the age-matched reference men (OR = 0.57, 95% CI 0.35-0.94), and 2.2% of the age-matched reference women (OR = 0.79, 95% CI 0.48-1.30). In conclusion, fracture risk was higher in older trans women compared with age-matched reference men. In young trans women, fracture risk tended to be increased compared with age-matched reference women. Fracture risk was not increased in young trans men. © 2019 The Authors. Journal of Bone and Mineral Research published by American Society for Bone and Mineral Research.
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Affiliation(s)
- Chantal M Wiepjes
- Department of Endocrinology, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.,Center of Expertise on Gender Dysphoria, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Christel Jm de Blok
- Department of Endocrinology, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.,Center of Expertise on Gender Dysphoria, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Annemieke S Staphorsius
- Center of Expertise on Gender Dysphoria, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Nienke M Nota
- Department of Endocrinology, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.,Center of Expertise on Gender Dysphoria, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Mariska C Vlot
- Department of Endocrinology, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.,Center of Expertise on Gender Dysphoria, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Renate T de Jongh
- Department of Endocrinology, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
| | - Martin den Heijer
- Department of Endocrinology, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands.,Center of Expertise on Gender Dysphoria, Amsterdam UMC, VU University Medical Center, Amsterdam, the Netherlands
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Wang Y, Mehrabi S, Sohn S, Atkinson EJ, Amin S, Liu H. Natural language processing of radiology reports for identification of skeletal site-specific fractures. BMC Med Inform Decis Mak 2019; 19:73. [PMID: 30943952 PMCID: PMC6448178 DOI: 10.1186/s12911-019-0780-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Osteoporosis has become an important public health issue. Most of the population, particularly elderly people, are at some degree of risk of osteoporosis-related fractures. Accurate identification and surveillance of patient populations with fractures has a significant impact on reduction of cost of care by preventing future fractures and its corresponding complications. Methods In this study, we developed a rule-based natural language processing (NLP) algorithm for identification of twenty skeletal site-specific fractures from radiology reports. The rule-based NLP algorithm was based on regular expressions developed using MedTagger, an NLP tool of the Apache Unstructured Information Management Architecture (UIMA) pipeline to facilitate information extraction from clinical narratives. Radiology notes were retrieved from the Mayo Clinic electronic health records data warehouse. We developed rules for identifying each fracture type according to physicians’ knowledge and experience, and refined these rules via verification with physicians. This study was approved by the institutional review board (IRB) for human subject research. Results We validated the NLP algorithm using the radiology reports of a community-based cohort at Mayo Clinic with the gold standard constructed by medical experts. The micro-averaged results of sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and F1-score of the proposed NLP algorithm are 0.930, 1.0, 1.0, 0.941, 0.961, respectively. The F1-score is 1.0 for 8 fractures, and above 0.9 for a total of 17 out of 20 fractures (85%). Conclusions The results verified the effectiveness of the proposed rule-based NLP algorithm in automatic identification of osteoporosis-related skeletal site-specific fractures from radiology reports. The NLP algorithm could be utilized to accurately identify the patients with fractures and those who are also at high risk of future fractures due to osteoporosis. Appropriate care interventions to those patients, not only the most at-risk patients but also those with emerging risk, would significantly reduce future fractures.
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Affiliation(s)
- Yanshan Wang
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN, USA.
| | - Saeed Mehrabi
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN, USA
| | - Sunghwan Sohn
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN, USA
| | - Elizabeth J Atkinson
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN, USA
| | - Shreyasee Amin
- Division of Rheumatology, Department of Medicine, Mayo Clinic, 200 1st ST SW, MN, Rochester, USA.,Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, MN, Rochester, USA
| | - Hongfang Liu
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN, USA
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Wang Y, Sohn S, Liu S, Shen F, Wang L, Atkinson EJ, Amin S, Liu H. A clinical text classification paradigm using weak supervision and deep representation. BMC Med Inform Decis Mak 2019; 19:1. [PMID: 30616584 PMCID: PMC6322223 DOI: 10.1186/s12911-018-0723-6] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 12/10/2018] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Automatic clinical text classification is a natural language processing (NLP) technology that unlocks information embedded in clinical narratives. Machine learning approaches have been shown to be effective for clinical text classification tasks. However, a successful machine learning model usually requires extensive human efforts to create labeled training data and conduct feature engineering. In this study, we propose a clinical text classification paradigm using weak supervision and deep representation to reduce these human efforts. METHODS We develop a rule-based NLP algorithm to automatically generate labels for the training data, and then use the pre-trained word embeddings as deep representation features for training machine learning models. Since machine learning is trained on labels generated by the automatic NLP algorithm, this training process is called weak supervision. We evaluat the paradigm effectiveness on two institutional case studies at Mayo Clinic: smoking status classification and proximal femur (hip) fracture classification, and one case study using a public dataset: the i2b2 2006 smoking status classification shared task. We test four widely used machine learning models, namely, Support Vector Machine (SVM), Random Forest (RF), Multilayer Perceptron Neural Networks (MLPNN), and Convolutional Neural Networks (CNN), using this paradigm. Precision, recall, and F1 score are used as metrics to evaluate performance. RESULTS CNN achieves the best performance in both institutional tasks (F1 score: 0.92 for Mayo Clinic smoking status classification and 0.97 for fracture classification). We show that word embeddings significantly outperform tf-idf and topic modeling features in the paradigm, and that CNN captures additional patterns from the weak supervision compared to the rule-based NLP algorithms. We also observe two drawbacks of the proposed paradigm that CNN is more sensitive to the size of training data, and that the proposed paradigm might not be effective for complex multiclass classification tasks. CONCLUSION The proposed clinical text classification paradigm could reduce human efforts of labeled training data creation and feature engineering for applying machine learning to clinical text classification by leveraging weak supervision and deep representation. The experimental experiments have validated the effectiveness of paradigm by two institutional and one shared clinical text classification tasks.
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Affiliation(s)
- Yanshan Wang
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
| | - Sunghwan Sohn
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
| | - Sijia Liu
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
| | - Feichen Shen
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
| | - Liwei Wang
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
| | - Elizabeth J. Atkinson
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
| | - Shreyasee Amin
- Division of Rheumatology, Department of Medicine, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
- Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
| | - Hongfang Liu
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, 200 1st ST SW, Rochester, MN 55905 USA
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