Correlation between the distance from the pubic symphysis to the sacrum with pelvic incidence

2019 ◽  
Vol 29 (5) ◽  
pp. 564-567
Author(s):  
Matthew V Abola ◽  
Derrick M Knapik ◽  
Daniel R Cooperman ◽  
Raymond W Liu
Keyword(s):  
Regression Analysis ◽  
African American ◽  
Pelvic Tilt ◽  
Pelvic Incidence ◽  
Pubic Symphysis ◽  
Pubic Tubercle ◽  
The Mean ◽  
Sacrococcygeal Joint ◽  
The Relationship ◽  
Age Of Death

Introduction: The distance between the pubic symphysis and sacrococcygeal joint has been noted as an important parameter in evaluating pelvic tilt in an anteroposterior (AP) radiograph. Similarly, pelvic incidence measures the sagittal balance of the pelvis and is influenced by pelvic rotation. The relationship between these 2 parameters is unknown and could affect interpretation of pelvic AP radiographs. Methods: We reconstructed 248 cadaveric pelvises. Pelvic incidence was measured using a previously validated method. Pubic symphysis-sacrococcygeal joint (PSS) height was measured from the superior pubic tubercle to the sacrococcygeal joint. The pelvises were positioned so that the anterior pelvis lay flush with the surface. A ruler was zeroed on the pubic tubercles and a transverse projecting laser was used to measure the height to the sacrococcygeal joint. Results: A total of 248 pelvises were reconstructed. Average age of death of the specimens was 33±6.0 years. 80% of the pelvises were male, 56% were Caucasian, and 44% African American. The mean PSS height was 2.2 ± 1.4 cm and mean PI was 44.3° ± 10.6°. Multiple regression analysis found PI and PSS height were not correlated ( p = 0.144). Females had a larger PSS height than males (beta = 1.17, p < 0.001) and African Americans a larger PSS height than Caucasians (beta = 0.63, p < 0.001). Conclusions: This study provides useful information for clinicians in evaluating AP radiographs of the pelvis in that it supports the use of PSS height to judge the adequacy of a radiograph even in the context of abnormal pelvic incidence.

scholarly journals The Level of Conus Medullaris in 629 Healthy Japanese Individuals

2021 ◽  
Vol 10 (14) ◽  
pp. 3182
Author(s):  
Hiroaki Nakashima ◽  
Keigo Ito ◽  
Yoshito Katayama ◽  
Mikito Tsushima ◽  
Kei Ando ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Magnetic Resonance ◽  
Pelvic Tilt ◽  
Pelvic Incidence ◽  
Multivariate Regression Analysis ◽  
Conus Medullaris ◽  
Magnetic Resonance Images ◽  
Factors Affecting ◽  
Adult Volunteers ◽  
Significant Factors

The conus medullaris typically terminates at the L1 level; however, variations in its level and the factors associated with the conus medullaris level are unclear. We investigated the level of conus medullaris on magnetic resonance imaging in healthy volunteers. In total, 629 healthy adult volunteers (≥50 individuals of each sex and in each decade of age from 20 to 70) were enrolled. The level of the conus medullaris was assessed based on the T2-weighted sagittal magnetic resonance images, and factors affecting its level were investigated employing multivariate regression analysis including the participants’ background and radiographical parameters. L1 was the most common conus medullaris level. Participant height was significantly shorter in the caudally placed conus medullaris (p = 0.013). With respect to the radiographical parameters, pelvic incidence (p = 0.003), and pelvic tilt (p = 0.03) were significantly smaller in participants with a caudally placed conus medullaris. Multiple regression analysis showed that the pelvic incidence (p < 0.0001) and height (p < 0.0001) were significant factors affecting the conus medullaris level. These results indicated that the length of the spinal cord varies little among individuals and that skeletal differences affect the level of the conus medullaris.

LA MESURE DE L’INTERFÉRENCE DU CHIENDENT DANS L’ORGE

1982 ◽  
Vol 62 (1) ◽  
pp. 183-188 ◽  
Author(s):  
R. RIOUX
Keyword(s):  
Regression Analysis ◽  
Hordeum Vulgare ◽  
Linear Relationship ◽  
Linear Relation ◽  
Shoot Density ◽  
Yield Variability ◽  
Hordeum Vulgare L ◽  
The Mean ◽  
The Relationship ◽  
Agropyron Repens

Barley (Hordeum vulgare L. ’Champlain’) was grown with quackgrass (Agropyron repens (L.) Beauv.) at various densities for 3 yr. According to the regression analysis, a linear relation is appropriate to describe the relationship between yield of barley and biomass or density of quackgrass. A greater proportion of yield variability was explained by density (64%) than by biomass (40%). Density is then a better criterion than biomass to predict yield lost in barley. The linear relationship between barley yield and the shoot density of quackgrass is estimated by the following equation: yield barley = 345.3–0.5682 dens, quackgrass. An increase of 10 shoots/m2 in the mean density of quackgrass resulted in a mean loss of 6 g/m2 in the yield of barley.

scholarly journals The Relationship between Thyroid Function and Depressive Symptoms—the FIN-D2D Population-Based Study

2015 ◽  
Vol 8 ◽  
pp. CMED.S24111 ◽  
Author(s):  
Juha Saltevo ◽  
Hannu Kautiainen ◽  
Pekka Mäntyselkä ◽  
Antti Jula ◽  
Sirkka Keinänen-Kiukaanniemi ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Depressive Symptoms ◽  
Thyroid Function ◽  
Participation Rate ◽  
Population Based ◽  
Thyroid Stimulating Hormone ◽  
Free Triiodothyronine ◽  
Population Based Study ◽  
The Mean ◽  
The Relationship

The association between thyroid function and depression is controversial. Both conditions express many similar symptoms, but the studies done give conflicting results. This study draws on a random, population-based sample of 4500 subjects aged 45–75 years old from Finland. The basic clinical study was done in 2007 for 1396 men and 1500 women (64% participation rate). Thyroid stimulating hormone (TSH), free thyroxine (F-T4), and free triiodothyronine (F-T3) were measured in 2013 from frozen samples. The 21-item Beck Depression Inventory (BDI-21) was applied to assess depressive symptoms (score ≥10 points). The prevalence of depressive symptoms was 17.5% in women and 12.5% in men. In women, the mean levels of TSH, F-T4, and F-T3 without depressive symptoms vs. with the presence of depressive symptoms were 1.92/1.97 mU/L, 13.1/13.1 pmol/L, and 3.91/3.87 pmol/L (NS), respectively. In men, the levels were 1.87/1.94 mU/L, 13.5/13.7 pmol/L, and 4.18/4.12 pmol/L (NS), respectively. In multiple regression analysis, TSH had no relationship to BDI-21 total score. We found no association between depressive symptoms and thyroid values.

scholarly journals Three-dimensional analysis of acetabular cup orientation and an evaluation of the relationship with pelvic sagittal parameters

2019 ◽  
Vol 27 (2) ◽  
pp. 230949901986122
Author(s):  
Ali Sahin ◽  
Mehmet Emin Simsek ◽  
Safa Gursoy ◽  
Mustafa Akkaya ◽  
Cetin Isik ◽  
...  
Keyword(s):  
Pelvic Tilt ◽  
Three Dimensional ◽  
Preoperative Assessment ◽  
Statistical Correlation ◽  
Acetabular Cup ◽  
Pelvic Parameters ◽  
Sagittal Parameters ◽  
The Mean ◽  
The Difference ◽  
The Relationship

Background: This study aimed to evaluate the effect of total hip arthroplasty (THA) on sagittal pelvic parameters and to evaluate the effect of sagittal pelvic parameters on acetabular cup orientation. Methods: The study included 86 patients who underwent THA for a diagnosis of unilateral coxarthrosis between 2011 and 2015. Measurements were taken of the preoperative and postoperative acetabular cup inclination (ACI), anteversion, and sagittal pelvic parameters. The effect of THA on sagittal pelvic parameters and the effects of the sagittal pelvic parameters on acetabular cup orientation were investigated. Results: The sagittal pelvic tilt values calculated were mean 9.7° ± 6.3° (2°; 23°) preoperatively and 11.0° ± 6.1° (2°; 25°) postoperatively. The increase in postoperative pelvic incidence (PI) values was determined to be statistically significant ( p < 0.05). The preoperative PI values had no significant effect on ACI, but in cases with high preoperative PI values, a tendency to high anteversion values was determined. The mean inclination values were found to be 40.2° ± 11.0° in the low PI group, 41.7° ± 7.4° in the normal PI group, and 44.1° ± 8.3° in the high PI group. As no increase in inclination values was observed with an increase in PI values, no statistical correlation was determined ( p = 0.343). Average of anteversion values in the low PI group was 9.2° ± 13.7°, in the normal PI group 19.3° ± 10.5°, and in the high PI group 21.1° ± 12.5°. The difference between the groups was statistically significant ( p = 0.001). Conclusion: Evaluating the results of this study, it can be concluded that varying PI values do affect the acetabular cup anterversion in THA. So, preoperative assessment of PI values is important in preventing postoperative acetabular cup malposition.

Machiavellianism and Tolerance of Ambiguity

1998 ◽  
Vol 82 (2) ◽  
pp. 415-418 ◽  
Author(s):  
Shirley Moore ◽  
Michael Ward ◽  
Barry Katz
Keyword(s):  
African American ◽  
University Administrators ◽  
College And University ◽  
Tolerance Of Ambiguity ◽  
The Mean ◽  
Relationship Of ◽  
The Relationship

The relationship of Machiavellianism and Tolerance of Ambiguity was studied in 47 African-American college and university administrators. The mean score on Machiavellianism in the youngest group (30–40 yr.) of administrators was significantly higher on Machiavellianism than the mean of the oldest group (50 yr. and older) of administrators.

scholarly journals Socially prescribed perfectionism and affectivity in Spanish child population

2016 ◽  
Vol 7 (1) ◽  
pp. 17-29
Author(s):  
María Vicent ◽  
Cándido Inglés ◽  
Ricardo Sanmartín ◽  
Carolina Gonzálvez ◽  
Lucía Granados Alós ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Negative Affect ◽  
Positive And Negative Affect ◽  
Adolescent Population ◽  
Socially Prescribed Perfectionism ◽  
The Mean ◽  
Low Levels ◽  
The Relationship ◽  
Affective Dimensions ◽  
Effect Magnitude

This study aims to analyze the relationship between Socially Prescribed Perfectionism (SPP) and affect during childhood. A sample of 804 students aged between 8 and 11 years old (M=9.57; SD=1.12), as well as the SPP subscale of the Child and Adolescent Perfectionism Scale and the 10-Item Positive and Negative Affect Schedule for Children, which assess the Positive Affect (PA) and Negative Affect (NA), were employed. The mean scores in PA and NA between students with high and low levels of SPP were compared. Students with high SPP significantly scored higher than their peers with low SPP, both in PA and NA. The effect magnitude of the found differences was small. Accordingly, the results of the logistic regression analysis revealed that both affective dimensions predicted positively and significantly high scores in SPP with Odd Ratio values of 1.08 and 1.05, respectively, for PA and NA. The results do not match the previous empirical evidence in adult and adolescent population. This implies that the consequences of considering the environment as demanding of perfectionism does not have the same consequences in childhood than in later ages.

scholarly journals Prevalence of HIV-associated neurocognitive disorder (HAND) and its subgroups among HIV-positive persons on anti-retroviral therapy in Iran

Psihologija ◽  
2020 ◽  
Vol 53 (2) ◽  
pp. 115-127
Author(s):  
Elham Mazaheri-Tehrani ◽  
Vahid Nejati ◽  
Alinaghi Seyed ◽  
Omid Dadras ◽  
Andrea Cossarizza ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Disease Duration ◽  
Hiv Positive ◽  
Neurocognitive Disorder ◽  
Educational Levels ◽  
Cd4 Counts ◽  
The Mean ◽  
Hiv Associated Neurocognitive Disorder ◽  
New Biomarkers ◽  
The Relationship

This study aimed to determine the prevalence and determinants of HIV-associated neurocognitive disorder (HAND) and its subgroups in HIV-positive patients in Tehran, Iran. Ninety-three HIV-positive individuals were assessed; the majority were male (60%) and the mean age of patients was 36.5 years (SD = 9), with 8 years as the median duration of HIV infection. The relationship between demographic and clinical variables was examined using logistic regression analysis. The overall prevalences of HAND and cognitive complaints were 50.5% and 73%, respectively. Lower nadir CD4 counts (? 200), lower educational levels (? 12 years), longer disease duration (? 5years), and higher depression rates were positively associated with the presence of HAND. This study shows that the prevalence of HANDs in Iran is high, but similar to the prevalence levels found in Western societies. Further studies are needed to longitudinally evaluate the presence of HAND, in particularly to recognize new biomarkers and specific neurocognitive domains in HIV.

Adrenal function of extremely premature infants in the first 5 days after birth

2019 ◽  
Vol 32 (4) ◽  
pp. 363-367 ◽  
Author(s):  
Sze M. Ng ◽  
Akinsola Ogundiya ◽  
Mohammed Didi ◽  
Mark A. Turner
Keyword(s):  
Regression Analysis ◽  
Multiple Regression Analysis ◽  
Multiple Regression ◽  
Premature Infants ◽  
Plasma Cortisol ◽  
Early Morning ◽  
Adrenal Function ◽  
Plasma Acth ◽  
The Mean ◽  
The Relationship

Abstract Background There is limited data on adrenal function in the early days after birth in extremely premature infants. The relationship between plasma adrenocorticotrophic (ACTH) and cortisol hormone is central to the integrity of the hypothalamic-pituitary-adrenal (HPA) axis yet there are no studies examining this relationship in prematurity. Methods The aim of this study was to examine the relationship between early morning plasma cortisol and ACTH concentrations during the first 5 days after birth in infants born at less than 28 weeks’ gestation and to identify any independent factors that determine plasma cortisol levels in these infants during extreme prematurity. We prospectively studied early morning plasma ACTH and cortisol concentrations in infants born below 28 weeks’ gestation during the first 5 days of birth. Plasma cortisol was measured without extraction, using DPC Immulite® 2000 using a solid phase 2 site chemiluminescent immunometric assay. ACTH was measured using a radioimmunoassay. Spearman’s correlation was used to examine the relationship between cortisol and ACTH. Multiple regression analysis was used to examine the relationship between plasma cortisol and clinical risk index for babies (CRIB) score, antenatal dexamethasone, mode of delivery and gestation. Results There were 95 infants (53 males) of mean gestation 25.3 ± 1.3 standard deviation (SD) (range 23–27 + 6) weeks. The mean birth weight was 809 ± 17.0 g. The mean plasma cortisol was 400.5 ± 42.6 nmol/L and the mean plasma ACTH was 4.5 ± 0.9 pmol/L. Early morning plasma cortisol correlated significantly with gestation (R = 0.4, p = 0.005). Early morning plasma ACTH did not correlate with early morning plasma cortisol (R = −0.12, p = 0.7). Multiple regression analysis showed that gestation was the only independent determinant of early morning plasma cortisol concentration (beta coefficient = −0.4, p = 0.04). Conclusions The relationship between early morning plasma ACTH and plasma cortisol is either not established or is impaired in infants of less than 28 weeks’ gestation in the first 5 days after birth. The plasma cortisol level is mainly determined by gestation and is not directly related to illness severity, antenatal steroids or plasma ACTH in these infants in the first 5 days after birth.

Acceptance towards Goods and Services Tax (GST) among local business communities

2017 ◽  
Vol 5 (4) ◽  
pp. 62
Author(s):  
Shahariah Asmuni ◽  
Sabariah Yusoff ◽  
Nur Syuhadah Mohd Ses
Keyword(s):  
Regression Analysis ◽  
Multiple Regression Analysis ◽  
Multiple Regression ◽  
Business Community ◽  
Key Factors ◽  
Business People ◽  
Independent Variables ◽  
Goods And Services ◽  
The Mean ◽  
The Relationship

The Goods and Services Tax (GST) has been introduced in Malaysia to replace the Sales and Services Tax (SST) to improve the efficiency of indirect tax collection. However, its implementation has not been fully understood by business people.  This research aims to examine the key factors that have contributed to the level of acceptance towards GST among business communities in a local city, Johor Bharu. In this study, three variables were selected namely awareness, understanding and attitude. Using questionnaire as a research instrument, 100 sets of questionnaires were distributed. Multiple regression analysis was used to test the relationship among awareness, understanding and attitude with the level of acceptance among business communities towards GST. The results revealed that the mean score for all independent variables is moderate. Awareness and attitude were found to have significant impact on the level of acceptance among business community towards GST, while understanding is not significant. The business community in Johor Bahru shows a moderate or positive level of acceptance and attitude towards GST.

Relationship of Hostility and White Space Responses on the Rorschach

1983 ◽  
Vol 57 (3) ◽  
pp. 739-742 ◽  
Author(s):  
John D. Martin ◽  
Nancy Kay Pfaadt ◽  
Judith G. Ma Kinster
Keyword(s):  
Regression Analysis ◽  
Multiple Regression Analysis ◽  
Multiple Regression ◽  
University Campus ◽  
White Space ◽  
The Mean ◽  
The University ◽  
Relationship Of ◽  
The Relationship

The present study was conducted to assess the relationship between hostility and white space responses on the Rorschach. The Rorschach was administered individually to 80 volunteer students on the university campus. 71 subjects were undergraduates and 9 were graduates. The mean age for the group was 24 yr. Among the males, 19 were white and 4 were non-white; among the females, 49 were white and 8 were non-white. Level of hostility was determined by Elizur's scoring of content and by adding all the weights for each subject's protocol. Percent was obtained for each subject by dividing the total of such responses by R or total number of responses. A significant correlation of .20 was obtained between level of hostility and white space responses. A correlation of .46 between total responses and white space responses was also significant. Gender and level of hostility correlated —.33. A multiple regression analysis gave an r of .51 for the combination of gender and total responses and level of hostility.

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