scholarly journals Time-Space Clustering Among Cases of Acute Leukemia in Two Georgia Counties

Blood ◽  
1973 ◽  
Vol 41 (2) ◽  
pp. 265-272 ◽  
Author(s):  
Bruce L. Evatt ◽  
Gary A. Chase ◽  
Clark W. Heath
Keyword(s):  
Population Density ◽  
Acute Leukemia ◽  
Census Tract ◽  
Age Groups ◽  
Statistical Analyses ◽  
Age Group ◽  
Place Of Residence ◽  
Chi Square ◽  
Time Space ◽  
Dekalb County

Abstract Statistical analyses were made of the time-space configuration of 406 acute leukemia cases in DeKalb and Fulton Counties, Georgia, over the 13-yr period 1956-1968. Separate analyses were performed for each of three age groups, 0-14 yr, 15-49 yr, and 50 yr-plus, cases being assigned to 2- and 3-yr time segments and to census tract units according to date of onset and place of residence at diagnosis. Pearson chi-square statistics and Haldane’s moments were used as a measure of homogeneity in case configurations. All calculations took into account age-specific populations for each census tract unit corrected for shifting population density. Evidence of inhomogeneity of time-space configurations, based on case clustering, was found among cases in the 0-14 age group but not at older ages. Clustering was present in both counties whether examined separately or combined, and it was more clearly seen in case distributions in DeKalb County. Analyses done for various periods of time showed that degree of clustering depended greatly on placement of time boundaries.

scholarly journals Predictive Value of Technical Throwing Skills on Nomination Status in Youth and Long-Term Career Attainment in Handball

2022 ◽  
Vol 8 (1) ◽  
Author(s):  
Till Koopmann ◽  
Franziska Lath ◽  
Dirk Büsch ◽  
Jörg Schorer
Keyword(s):  
Logistic Regression ◽  
National Level ◽  
Age Groups ◽  
Age Group ◽  
Regression Analyses ◽  
Chi Square ◽  
Career Attainment ◽  
Future Performance ◽  
Younger Age

Abstract Background Research on talent in sports aims to identify predictors of future performance. This study retrospectively investigated 1) relationships between young handball field players’ technical throwing skills and (a) their potential nomination to youth national teams and (b) their long-term career attainment 10 years later, and 2) associations between nomination status and career attainment. Results Results from retrospectively predicting nomination status and career attainment using logistic regression analyses show that technical throwing skills were partly able to explain players’ nomination status (Nagelkerke R2: females 9.2%, males 13.1%) and career attainment (Nagelkerke R2: 9.8% for female players). Here, variables throwing velocity and time on exercise showed statistically significant effects. In addition, nomination status and career attainment were shown to be associated using chi-square tests (w of .37 and .23 for female and male players, respectively) and nomination status as a predictor increased the prediction of career attainment remarkably (Nagelkerke R2: females 20.3%, males 12.7%). Conclusions Given these results, basic technical throwing skills may serve rather as a prerequisite in this age group on national level, emphasizing its importance already on lower levels and in younger age groups. Furthermore, advantages from entering the national TID system early especially for females are discussed.

scholarly journals QT Interval Changes in Children With Febrile Convulsion Comparing With Healthy

2021 ◽  
pp. 1-15
Author(s):  
Alireza Teimouri ◽  
◽  
Noor Mohammad Noori ◽  
Ali Khajeh ◽  
◽  
...  
Keyword(s):  
Qt Interval ◽  
Case Control Study ◽  
Age Groups ◽  
Febrile Convulsion ◽  
Case Control ◽  
Healthy Children ◽  
Age Group ◽  
Chi Square ◽  
Pediatric Cardiologist ◽  
Control Study

A temperature-related seizure is a febrile seizure that affects the QT interval. The purpose of this study was to evaluate the changes in the QT interval caused by febrile convulsion compared with healthy children. Method This case-control study considered the distribution of 180 children equally shared between patients and controls. The study was conducted at the "Ali Ebne Abi Talib" Hospital in Zahedan, Iran. The disease diagnosed and confirmed based on standard definitions of febrile convulsion. QT interval measured by ECG and interpreted by a pediatric cardiologist and collected data were analyzed with SPSS 19 considering 0.05 as significant error. Results Among the ECG parameters, HR, R in aVL, S in V3, LVM, QTd, QTc and QTcd were significantly different in children with febrile convulsion compared to the peers. From those who had abnormal QTd, FC children were more frequented but not significant (CHI SQUARE=1.053, p=0.248), when children with FC were more in abnormality regarding QTc (CHI SQUARE=13.032, p<0.001) and QTcd (CHI SQUARE=21.6, P<0.001) significantly. In children with FC, those who were aged less than 12 months, had the highest level of HR but not significant (CHI SQUARE=4.59, p=0.101). Similar trends occurred for R in aVL and S in V3 that were higher in the age group >24 months (p>0.05). LVM had the highest value in the age group of >24 months significantly (CHI SQUARE= 52.674, P<0.001) and the other QT parameters were same in Fc children with different age groups (P>0.05). Conclusion From the study concluded that dispersion corrected QT, corrected QT and dispersion QT changed significantly in children with febrile convulsion in comparing with the healthy children but with constant values in children with FC in different age groups.

scholarly journals Ornithocenosis Structure in Fresh and Wet Sudubravas of Kyiv Polissya during the Breeding Period

2016 ◽  
Vol 50 (3) ◽  
pp. 241-250
Author(s):  
A. V. Plyha
Keyword(s):  
Population Density ◽  
Age Groups ◽  
Bird Species ◽  
Pine Forests ◽  
Breeding Period ◽  
Ecological Group ◽  
Ecological Groups ◽  
Age Group ◽  
Majority Population ◽  
Species Lists

Abstract This research was carried out in Kyiv Polissya geobotanical province, in one of most common woods type - fresh and wet sudubravas. Its purpose is to determine ornithocenosis structure in different age groups of this type of forest. To achieve that, forest bird species lists were composed, their population density and that of ecological groups of birds were calculated. In the course of the research in the breeding periods of 2013-2014, two-time surveys were carried out on 12 survey routes of total length 33 km. For further analysis, forests were divided into age groups: 0-20 years, 20-40 years, 40-60 years, 60-80 years, 80-100 years and forests over 100 years. Altogether 53 bird species were found. Species lists were poorest in the forests of 0-20 years (18 species), and richest in the forests over 100 years (39 species). Minimal population density was 473 individuals per square kilometer in the youngest forest age group of 0-20 years, maximal - 2155 individuals per square kilometer in pine forests aged over 100 years. Analysis of different population densities of ecological groups reveals steadily growing numbers of hollow-nesting birds and tree-nesting birds in accordance with aging of the forests. In older forests hollow-nesting birds constitute an absolute majority. Population density of another ecological group shows no such direct tendency.

scholarly journals Dynamic Smile Visualization and Quantification in different age groups

2016 ◽  
Vol 06 (04) ◽  
pp. 32-38
Author(s):  
Harshitha V. ◽  
M.S. Ravi ◽  
Reshma Raveendran ◽  
Raed Saeed ◽  
Kiran Kumar C.
Keyword(s):  
Age Groups ◽  
T Test ◽  
Age Group ◽  
Chi Square ◽  
Video Clips ◽  
Younger Age ◽  
Chi Square Test ◽  
Buccal Corridor ◽  
Paired T Test ◽  
Two Age Groups

Abstract Aims and Objectives: To assess the posed and dynamic smile and to compare the various attributes of smile in frontal, oblique and sagittal dimensions, in two different age groups (10- 15years and 18-25 years). Materials and Methods: The posed and dynamic smile parameters were measured using digital video clips in 80 subjects of two different age groups (10-15years and 18-25 years). Total of 15 parameters were studied in 3 planes of space. The data was analysed using student`s t-test to compare smile parameters across the age groups, paired t-test was used to analyse the parameters of posed and unposed smile within the same age group and chi-square test was performed for the discrete data. Results: The present study revealed significant differences in dynamic smile parameters between the two age groups. The parameters like Philtrum height and Smile index are more in older age group whereas the buccal corridor was more in younger age group. Significant differences were also recorded in various parameters in both the groups when the posted smile is compared with that of the dynamic smile. Conclusion: In both the age groups, the dynamic and posed smile attributes are significantly different, except for buccal corridor and interlabial gap.

scholarly journals FREQUENCY, DISTRIBUTION AND DETERMINANTS OF HYPERTENSION IN ADULT STROKE POPULATION OF D.I.KHAN DIVISION, PAKISTAN

2020 ◽  
Vol 17 (3) ◽  
pp. 81-89 ◽  
Author(s):  
Nazafatul Ain ◽  
Saira Khan ◽  
Muhammad Marwat ◽  
Nisar Khan ◽  
Iftikhar Ahmad ◽  
...  
Keyword(s):  
Frequency Distribution ◽  
Goodness Of Fit ◽  
Age Groups ◽  
Cross Sectional Study ◽  
Age Group ◽  
Chi Square ◽  
Cross Sectional ◽  
Medical College ◽  
Stroke Population ◽  
Chi Square Test

Background: Global Health Estimates 2015 has shown the stroke as second leading global cause of death and 3rd leading global cause for DALYs for year 2015. The objectives of this study were to determine the frequency, distribution and determinants of hypertension in adult stroke population of D.I.Khan Division, Pakistan. Materials & Methods: This cross-sectional study was conducted in Department of Community Medicine, Gomal Medical College, D.I.Khan, Pakistan from February 1, 2017 to April 30, 2017. A sample 217 was selected with margin of error 5.59%, 90%CL and 50% prevalence of hypertension in 200,000 adults at risk of stroke population through consecutive sampling. All indoor adult patients of stroke were eligible. Sex, age groups, and residence and presence of hypertension were variables. Frequency and distribution of hypertension were analyzed by count and percentage. Hypotheses for distribution were substantiated by chi-square goodness-of-fit and of association by chi-square test of association. Results: Out of 217 patients with stroke, 123 (56.7%) were men and 94 (43.3%) were women, 86 (39.6%) were≤60 years and 131 (60.4%) were>60 years, and 105 (48.4%) were urban and 112 (51.6%) were rural. Frequency of hypertension was 132/217 (60.83%). Out of 132 patients with hypertension, men were 74 (34.10%), women 58 (26.73%), age group≤60 years 46 (21.20%), >60 years 86 (39.63%), urban 72 (33.18%) and rural 60 (27.65%). Presence of hypertension was associated to residence (p=.023) but not to sex (p=.817) and age groups (p=.072). Conclusion: Frequency of hypertension in adult stroke population of D.I.Khan Division, Pakistan was found to be similar as expected. Frequency was more in men, in older age group (of>60years) and in urban population. The presence of hypertension in adult stroke population of D.I.Khan Division was associated to residence but not to sex and age groups.

scholarly journals Research on Relative Age in Hungarian Swimming

2015 ◽  
Vol 68 (1) ◽  
pp. 5-13 ◽  
Author(s):  
Nikoletta Nagy ◽  
Csaba Ökrös ◽  
Csaba Sós
Keyword(s):  
Data Collection ◽  
Dominant Role ◽  
Age Groups ◽  
Independent Study ◽  
Age Group ◽  
Chi Square ◽  
Relative Age ◽  
Gender And Age ◽  
Research Population ◽  
High Level

AbstractIn 2017, the 19th World Swimming Championship will be organized in Hungary. Up to now, many people have already been working with swimmers to achieve good results. However, in the next period they must work even harder to ensure that the national swimmers of a country as small as Hungary can achieve the outstanding results of their predecessors. Since high-level competitions in swimming have become more intense, innovations including scientific studies are needed during preparation for the event. The purpose of this paper is to present the major results of an independent study carried out by the authors about the relative age of the best Hungarian swimmers with the aim of contributing to their preparation. The research population consisted of selected age groups of swimmers registered by the Hungarian Swimming Association (N=400). The method for data collection was an analysis of documents. To evaluate the data, the Chi-square and Kruskal-Wallis tests were used. The results are presented according to the period of the competitor’s date of birth, gender, and age group. The results confirm only partly the hypothesis that people born in the first quarters of the year play a dominant role in Hungarian national swimming teams. In the conclusion, the authors recommend further research on relative age in swimming and in other sports.

scholarly journals FREQUENCY, DISTRIBUTION AND DETERMINANTS OF DIABETES MELLITUS IN ADULT ACUTE CORONARY SYNDROME POPULATION OF D.I.KHAN DIVISION, PAKISTAN

2019 ◽  
Vol 17 (4) ◽  
pp. 131-143 ◽  
Author(s):  
Muhammad Marwat ◽  
Iftikhar Ahmad ◽  
Fariha Ashiq ◽  
Sania Ali ◽  
Sher Zamir ◽  
...  
Keyword(s):  
Acute Coronary Syndrome ◽  
Frequency Distribution ◽  
Goodness Of Fit ◽  
Age Groups ◽  
Cross Sectional Study ◽  
Age Group ◽  
Chi Square ◽  
Cross Sectional ◽  
Coronary Syndrome ◽  
Chi Square Test

Background: Global Health Estimates 2015 has shown IHD as second leading global cause of death and 3rd leading global cause for DALYs for 2015. The objectives of this study were to determine frequency, distribution and determinants of DM in adult acute coronary syndrome (ACS) population of D.I.Khan Division, Pakistan. Materials & Methods: This cross-sectional study was conducted in Departments of Ophthalmology & Community Medicine, Gomal Medical College, D.I.Khan, from February 1, 2017 to April 30, 2017. 331 cases were selected with margin of error 4.511%, 90%CL and 25% prevalence of DM in 73,438 adults assumed to have IHD. All indoor adult patients of ACS were eligible. Sex, age groups, and residence and presence of DM were variables. Frequency and distribution were analyzed by count and percentage. Hypotheses for distribution were substantiated by chi-square goodness-of-fit and of association by chi-square test of association. Results: Out of 331 patients with ACS, 225 (68.0%) were men and 106 (32.0%) women, 221 (66.8%) ≤60 years and 110 (33.2%) >60 years, and 210 (63.4%) urban and 121 (35.6%) rural. Frequency of DM was 79/331 (23.87%). Out of 79 patients with DM, men were 44 (13.29%), women 35 (10.57%), age group ≤60 years 57 (17.22%), >60 years 22 (6.65%), urban 53 (16.01%) and rural 60 (7.85%). Our prevalence of DM was lower than expected (p=.00214), our distribution by sex was similar to expected (p=.4993) while our distribution for age groups (p=.01209) and residence (p=.00005) were not similar to expected. Presence of DM was associated to sex (p=.011) but not to age groups (p=.0304) and residence (p=.5241). Conclusion: Prevalence of DM in adult ACS population of D.I.Khan Division, Pakistan was found lower than expected. The prevalence was more in men than women, more in younger age group (≤60 years) than older age group (>60 years) and more in urban than rural population. Our prevalence of DM was lower than expected, our distribution by sex was similar to expected while our distribution for age groups and residence were not similar to expected. The presence of DM was associated to sex but not to age groups and residence.

scholarly journals Association Between Tobacco Dependence and Quit Rate

2020 ◽  
Vol 11 (SPL3) ◽  
pp. 1477-1482
Author(s):  
Hemashree J ◽  
Arthi Balasubramaniam ◽  
Manjari Chaudhary
Keyword(s):  
Nicotine Dependence ◽  
Relapse Rate ◽  
Case Reports ◽  
Age Groups ◽  
Tobacco Dependence ◽  
University Hospital ◽  
Age Group ◽  
Chi Square ◽  
Quit Rate ◽  
Tobacco Usage

Tobacco usage is a major cause of death from cancer, cardiovascular disease, pulmonary diseases. Nicotine addiction which causes physical and psychological dependency, might function as a barrier to smoking cessation. This study aimed to find the association between tobacco dependence and quit rate. A retrospective study was conducted using case records of patients visiting University hospital. About 100 case reports containing information on tobacco dependence and quit rate (in terms of a number of relapses) were retrieved and analysed. Descriptive statistics was done to present the sociodemographic details. Chi-square association to find the association tobacco dependence and relapse rate. Tobacco dependence was higher in males compared to females among all the age groups. It was seen that high nicotine dependence was noted among the subjects of the age group 51 - 60 years (3%). Quit rate with less number of relapses was noted among individuals with low tobacco dependence. There was a statistically significant association between tobacco dependence and quit status (p=0.000). Males (36.5%) had more relapse rate compared to females. About 44.4% of patients with medium dependence had a high number of relapses followed by patients with very low dependence (30.56%). Among 18% of patients with high nicotine dependence, 10% of patients had more number of relapses. Very low and low dependence have more number of relapses with no association between nicotine dependence and quit status.

scholarly journals Study of geographical distribution of number of cases of COVID-19 in different areas of Maharashtra

2020 ◽  
Vol 8 (1) ◽  
pp. 257
Author(s):  
T. Mohanty ◽  
P. P. Doke ◽  
K. H. Patil
Keyword(s):  
Population Density ◽  
Geographical Distribution ◽  
Urban Areas ◽  
Mitigation Measures ◽  
Age Group ◽  
High Population Density ◽  
Geographical Differences ◽  
Chi Square ◽  
And Gender ◽  
Case Distribution

Background: Geographical differences in number of COVID-19 cases and death are affected by population density, age, gender distribution and mitigation measures like social distancing etc. The aim of this study was to determine the geographical distribution of number of cases of covid-19 in different areas of Maharashtra. The investigator wants to know, which area, which age group and which gender has been affected the most by COVID-19 along with the effect of lockdown.Methods: Area and population of all the COVID-19 affected area was collected and area wise number of cases till 31st May 2020 was considered. Association between number of COVID-19 cases and population of areas was calculated and gender-wise and age-wise case distribution was also calculated.Results: Cases are more in urban areas mainly in corporation (Chi square=114441; p<0.0001). Age group 31-40 years’ is most affected (11.5 per 100,000 population affected). Young adults as well males were affected most and even though population of children is quite big, they remained less affected (chi square=22117).Conclusions: This COVID-19 is a disease of urban area primarily affecting corporation areas. High population density and overcrowding are mainly responsible for initial phase of this disease only in corporation area. Strict lockdown and other social measures decreased both transmission and mortality rate.

scholarly journals Investigating the Presence of Plasmodium falciparum Chloroquine Resistant Transporter (Pfcrt) Drug-resistance Alleles in Some Northern Nigerian States

2018 ◽  
pp. 1-7
Author(s):  
M. H. Ruqayyah ◽  
K. Nafisatu ◽  
B. Balarabe Musa
Keyword(s):  
Drug Resistance ◽  
Plasmodium Falciparum ◽  
Age Groups ◽  
Age Group ◽  
Self Medication ◽  
Chi Square ◽  
Group 13 ◽  
Pfcrt Gene ◽  
Significant Difference ◽  
Government Hospitals

This study was designed to investigate the presence of Pfcrt drug- resistance alleles (CQ resistant biomarker) and attempted to analyse the outcome in some states of northern Nigeria. A total of four hundred and thirteen (413) Plasmodium falciparum positive blood samples were collected from Kaduna, Jigawa, Katsina and Kebbi states during the period of April-August 2013. The samples were genotyped at codon 76 using specific primers for Pfcrt gene. The data was analysed using Chi-square to determine significance association. Four hundred and thirteen (413) P. falciparum positive samples were genotyped at codon 76 of pfcrt gene. Sixty eight 68(16.5%) samples contained single K76 (Chloroquine sensitive) alleles, 49(11.9%) contained 76T, while 16(3.9%) contained mixed K76T alleles. K76 alleles were highest in Kaduna state 17(32.1%) and lowest in Kebbi state 10(7.4%), 76T was highest in Jigawa state 11 (25.6%) and lowest in Kebbi state 7(5.2%) while K76T was highest in Jigawa state 5(11.5%) and lowest in Kebbi state 2(1.5%) with significant difference between the states P<0.05. K76 was higher among females 43(17.6%), 76T was also higher females 30(12.2%) while K76T was higher among males 7 (4.2%). K76 was higher among age group of 16-25 years 17(22.4%) and least among 26-40years age group 13 (13.5%). 76T was also higher among 26-40 years age group 17(17.7%) and least among age group >40 years 1(2.0%) and K76T was higher among age group 16-25 years 6(7.9%) and least in >40 years of age 1(2.0%) with high significant difference P<0.05 between the age groups. The results of this study genetically confirms the use of CQ for malaria treatment in the area and attributed the varied distribution across the states, to high irrigation activities, self medication leading to dosage non compliance and improper diagnosis due to use of low sensitive RDT in most government hospitals. The need for enlightenment of the populace cannot over emphasize.

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