scholarly journals Factors Affecting Bone Mineral Density Among Snowy Region Residents in Japan: Analysis Using Multiple Linear Regression and Bayesian Network Model (Preprint)

2017 ◽  
Author(s):  
Teppei Suzuki ◽  
Tomoko Shimoda ◽  
Noriko Takahashi ◽  
Kaori Tsutsumi ◽  
Mina Samukawa ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bayesian Network ◽  
Multiple Regression ◽  
Bone Mineral ◽  
Calcium Intake ◽  
Mineral Density ◽  
Bayesian Network Model ◽  
Factors Affecting ◽  
Exercise Habits ◽  
T Score

BACKGROUND As the onset of osteoporosis leads to reduced activities of daily living and may result in patients being bedridden, efforts to prevent decreased bone density are necessary. Various studies on the relationship between sex, age, nutrients, and exercise habits and bone mineral density have been conducted to date. However, for snowy region residents, the magnitude of influence of various factors affecting bone mineral density and the influence level have not been clarified. OBJECTIVE This study aimed to clarify the degree of influence and factors influencing bone mineral density based on survey results on health conditions and lifestyle habits in heavy snow areas. METHODS A total of 354 citizens who visited a drugstore in the target area were included in a study that included using the brief-type self-administered diet history questionnaire on lifestyle and exercise habits. Height, weight, body composition, and bone densitometer values were analyzed using multiple regression to calculate their association with bone mineral density. In addition, a Bayesian network model was used to determine the influence level of each factor as a conditional probability. RESULTS Multiple regression analysis revealed that age, sex, fracture, and calcium intake significantly influenced bone mineral density. In addition, the result of Bayesian network analysis suggested that age and sex affected bone mineral density, whereas nutrients and exercise habits might not have a direct impact. However, calcium intake and the T-score were significant factors affecting the presence or absence of fracture experiences, suggesting that adequate calcium intake is essential for preventing fractures. CONCLUSIONS In the multiple regression analysis, age, sex, fracture, and calcium intake were selected as factors; however, in the Bayesian analysis, only age and sex affected bone mineral density while nutrients did not. In addition, the fact that calcium intake and the T-score were shown to affect bone fracture history suggests that calcium intake is an important measure that can prevent bone fractures. Overall, these results suggest that measures such as ensuring a bone fracture–free environment and providing nutritional advice for calcium intake can be effective in preventing bone loss.

scholarly journals Impact of Measuring Bone Mineral Density at Bilateral Hip

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A247-A247
Author(s):  
Abhilasha Singh ◽  
Anu Sharma
Keyword(s):  
Bone Mineral Density ◽  
Regression Analysis ◽  
Femoral Neck ◽  
Multiple Regression Analysis ◽  
Multiple Regression ◽  
Bone Mineral ◽  
Bone Density Measurement ◽  
Medical Conditions ◽  
Mineral Density ◽  
T Score

Abstract Osteoporosis is a systemic disease characterized by low bone mineral density (BMD) leading to an increased risk of fracture. The current guidelines vary regarding the measurement of BMD at unilateral versus bilateral hip. We hypothesized that a discordance exists between bone densities measured at both hips and that patients undergoing unilateral hip imaging are at risk for under diagnosis. A retrospective chart review was performed to include all patients age 18 years and older, who underwent bone density measurement in 2019 at a single center using Hologic densitometer. Data gathering included BMD and T- scores at bilateral hip for all postmenopausal women and men above the age of 50 yrs. The continuous variables were expressed as means with standard deviation for normal distribution and analyzed with a two-sample t-test. Multiple regression analysis was used to test the effect of underlying medical conditions on T-score at bilateral hips. For all analyses, a p-value of <0.05 was considered significant. 150 patients were included in the study (127 females and 23 males) with a mean age at imaging of 65.2 + 9.7 years and body mass index (BMI) of 27.2 + 6.1 kg/m2. 9% (n=14) of patients were observed to have discordance between T scores at both hips, out of which 13 individuals would have been underdiagnosed if one side was measured alone. There was a significant difference between mean BMD at total hip (left hip 0.84 + 0.14 g/cm2 vs right hip 0.82 + 0.14 g/cm2; p<0.05). Among individuals with discordant T scores, a positive correlation was observed with BMI at the left femoral neck (r= 0.54, p= 0.04). Results: of multiple regression analysis showed that 67% of variation in the T score at right femoral neck could be accounted for by underlying medical conditions. Appointment duration and cost were unchanged when scanning unilateral or bilateral hip, 30 minutes, and $250 respectively. In summary, scanning bilateral hips provides treatment opportunities for patients who would otherwise be underdiagnosed without an additional increase in cost.

130: Role of Calcium Intake on Bone Mineral Density in Rostate Cancer Patients Under Androgen Deprivation Therapy

2006 ◽  
Vol 175 (4S) ◽  
pp. 41-42
Author(s):  
Anna Orsola ◽  
Jacques Planas ◽  
Carlos Salvador ◽  
José M. Abascal ◽  
Enrique Trilla ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Cancer Patients ◽  
Androgen Deprivation Therapy ◽  
Bone Mineral ◽  
Calcium Intake ◽  
Androgen Deprivation ◽  
Mineral Density ◽  
Rostate Cancer

scholarly journals Bone mineral density assessment by DXA in rheumatic patients with end-stage osteoarthritis undergoing total joint arthroplasty

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Moritz Mühlenfeld ◽  
André Strahl ◽  
Ulrich Bechler ◽  
Nico Maximilian Jandl ◽  
Jan Hubert ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Rheumatic Diseases ◽  
Total Joint Arthroplasty ◽  
Joint Destruction ◽  
Joint Arthroplasty ◽  
Mineral Density ◽  
T Score ◽  
End Stage ◽  
Rheumatic Patients

Abstract Background Patients with rheumatic diseases have a high risk for joint destruction and secondary osteoarthritis (OA) as well as low bone mineral density (BMD, i.e., osteoporosis). While several factors may lead to low BMD in these patients, the value of BMD measurements in rheumatic patients with end-stage OA scheduled for total joint arthroplasty is unknown. Methods In this retrospective cross-sectional study of 50 adults with secondary OA due to rheumatic diseases, we evaluated dual energy X-ray absorptiometry (DXA) measurements of both hips and the spine performed within 3 months prior to arthroplasty (n = 25 total hip arthroplasty, THA; n = 25 total knee arthroplasty, TKA). We analyzed various demographic and disease-specific characteristics and their effect on DXA results by using group comparisons and multivariate linear regression models. Results Although patients undergoing TKA were younger (63.2 ± 14.2 vs. 71.0 ± 10.8 yr., p = 0.035), osteoporosis was observed more frequently in patients scheduled for TKA than THA (32% vs. 12%). Osteopenia was detected in 13/25 patients (52%) in both the THA and TKA cohort. In the THA cohort, female sex, lower BMI and prednisolone use were associated with lower T-score in the hip. In TKA patients, higher OA grade determined by Kellgren-Lawrence score was associated with lower T-score in the hip of the affected side. Conclusions Osteoporosis is present in a considerable frequency of rheumatic patients with end-stage OA, and THA and TKA patients show distinct frequencies and risk factors of low BMD. Our findings point to a potential value of DXA regarding preoperative evaluation of bone status.

scholarly journals Evaluation of association of fragility fracture and bone mineral density in Nepalese population

2013 ◽  
Vol 2 (2) ◽  
pp. 130-134
Author(s):  
Md. Farid Amanullah ◽  
BP Shrestha ◽  
GP Khanal ◽  
NK Karna ◽  
S Ansari ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Risk Factor ◽  
Alcohol Consumption ◽  
Bone Mineral ◽  
Fragility Fracture ◽  
High Energy ◽  
Medical Illness ◽  
Mineral Density ◽  
T Score ◽  
Study Results

Background: Fragility fractures are one of the major health problems. Many factors are associated with it some of which are modifiable and some are not. If we know the value of T-score at which fragility fracture occurs and associated factors responsible for fragility fracture than we will be able to control this burden to the society. The objective of this study is to determine association between fragility fracture and bone mineral density (BMD) using bone densitometry and to know the value of T-score at which fragility fracture occurs. Methods: Patients presenting to B.P. Koirala Institute of Health Sciences with fragility fracture of distal end of radius, fracture around hip and vertebral fractures were included in the study to know the value of T-score at which fragility fracture occurs and their associated risk factor. Patients less than 50 years of age, high energy trauma fracture and pathological fractures were excluded from the study. Results: We found that being multipara, smoking, alcohol consumption, post-hysterectomized patients and steroid intake had significant association with fragility fracture. There was no association with religion, geographic location, associated medical illness, age, sex, associated injury and site of injury. Conclusion: The patients with risk factor for fragility fracture like smoking, alcohol consumption, multipara women, post-hysterectomized women and those who are on long term steroid therapy should undergo BMD test and the value at -3.254 are prone to fragility fracture and should be treated accordingly. Nepal Journal of Medical Sciences | Volume 02 | Number 02 | July-December 2013 | Page 130-134 DOI: http://dx.doi.org/10.3126/njms.v2i2.8956

scholarly journals Lack of Association between Pulse Steroid Therapy and Bone Mineral Density in Patients with Multiple Sclerosis

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Serap Zengin Karahan ◽  
Cavit Boz ◽  
Sevgi Kilic ◽  
Nuray Can Usta ◽  
Mehmet Ozmenoglu ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Bone Mineral Density ◽  
Lumbar Spine ◽  
Femoral Neck ◽  
Bone Mineral ◽  
Steroid Therapy ◽  
Negative Relationship ◽  
High Dose ◽  
Mineral Density ◽  
Factors Affecting

Multiple sclerosis (MS) has been associated with reduced bone mineral density (BMD). The purpose of this study was to determine the possible factors affecting BMD in patients with MS. We included consecutive 155 patients with MS and 90 age- and sex-matched control subjects. Patients with MS exhibited significantly lowerT-scores andZ-scores in the femoral neck and trochanter compared to the controls. Ninety-four (61%) patients had reduced bone mass in either the lumbar spine or the femoral neck; of these, 64 (41.3%) had osteopenia and 30 (19.4%) had osteoporosis. The main factors affecting BMD were disability, duration of MS, and smoking. There was a negative relationship between femoral BMD and EDSS and disease duration. No association with lumbar BMD was determined. There were no correlations between BMD at any anatomic region and cumulative corticosteroid dose. BMD is significantly lower in patients with MS than in healthy controls. Reduced BMD in MS is mainly associated with disability and duration of the disease. Short courses of high dose steroid therapy did not result in an obvious negative impact on BMD in the lumbar spine and femoral neck in patients with MS.

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