scholarly journals Fitting a Gamma Distribution using a Chi-squared Approach to the Heights of Students of Akwa Ibom State University, Nigeria

Author(s):  
Itoro Tim Michae ◽  
Anthony Effiong Usoro ◽  
Ikpang Nkereuwem Ikpang ◽  
Ekemini Udoudo George ◽  
David Ita Bassey

This paper fits a gamma probability model to the heights of Students of the Akwa Ibom State University. A sample of 998 Students was drawn from the Medical Centre of the Institution’s Main Campus, Ikot Akpaden, Akwa Ibom State. Some exploratory data analyses were carried out to observe the behavior of the data set graphically. A chi-square test is used to ascertain whether or not the heights of students are gamma distributed. From the graphical displays and the chi-squared test results, it is observed that the heights follow gamma distribution even though the maximum likelihood estimates of the parameters are quite influential on the results at 𝛼 ≥ 0.01% significance level.  

Author(s):  
Desti Widya Astuti Desti Widya Astuti

ABSTRAK   Berdasarkan data di RSUD Kota Prabumulih bahwa terdapat peningkatan jumlah kejadian perdarahan post partum, tahun 2014 sebanyak 178 orang, tahun 2015 sebanyak 246 orang dan tahun 2016 sebanyak 151 orang. Penelitian ini bertujuan untuk mengetahui hubungan umur ibu dan jarak kehamilan terhadap kejadian perdarahan post partum di RSUD Kota Prabumulih Tahun 2016. Penelitian ini merupakan penelitian analitik dengan rancangan cross sectional. Populasi yang digunakan adalah semua ibu bersalin di RSUD Kota Prabumulih, sebanyak 1.296 ibu bersalin dan 306 sampel. Pengambilan sampel dengan mengunakan random sampling, analisa data menggunakan analisa univariat dan bivariat dengan menggunakan uji statistik chi-square dengan derajat kemaknaan 0,05. Hasil penelitian ini menunjukan bahwa dari 288 ibu bersalin terdapat 151 yang mengalami perdarahan post partum sebagian besar adalah ibu dengan umur resiko tinggi sebanyak 43 orang  (40,9%) dan ibu dengan jarak kehamilan resiko tinggi sebanyak 21 orang (17,3%). Hasil uju chi-square umur didapatkan p.value 0,000 < α 0,05 dan uji chi-square untuk jarak kehamilan didapatkan p.value 0,000 < α 0,05. Maka ada hubungan umur ibu dan jarak kehamilan terhadap kejadian perdarahan post partum di RSUD Kota Prabumulih Tahun 2016. ABSTRACK   Based on the data at District General Hospital (RSUD) Prabumulih, there was increasing of post-partum bleeding, in 2014, there were 178 people. In 2015, there were 246 people. And in 2016, there were 151 people. The purpose of the study was to know relationship between maternal mother and the distance and old post-partum bleedingat District General Hospital (RSUD) Prabumulih in 2013. The study was analytic researchwith cross sectional design. Population thas was used in the study was all maternal mother ar District General Hospital (RSUD) Prabumulih. It was about 1.296 maternal mother and from 306. Random sampilng was done in the study, data analyses used univariate and bivariate analyses by using chi-square statistic test with significance level 0,05. The study result showed that from 306 maternal mother, there were 151 mother who experienced old post-partum bleeding, the large of that was high maternal mother 43 people  (40,9%) and mother age high distance 21 people (17,3%). The result of chi-square test was p value 0,000 < α 0,05 and chi-square test for age was p value 0,000 < α 0,05. It meant that there was relationship between maternal mother and the distance and of post-partum bleeding at District General Hospital (RSUD) Prabumulih in 2016.


2020 ◽  
Vol 2 (1) ◽  
pp. 53-59
Author(s):  
Josimara A. de Araújo Varela ◽  
Tatiana F.T. Palitot ◽  
Smyrna L.X. de Souza ◽  
Alidianne F.C. Cavalcanti ◽  
Alessandro L. Cavalcanti

Objective: This study aimed to analyze the presence of lesions in the skull and face and the associated factors in pedestrian victims of traffic accidents. Methods: A cross-sectional, descriptive-analytical study carried out through the analysis of medical records of pedestrian victims of traffic accidents in an emergency service in the city of Campina Grande, Brazil, during the year of 2016. Information was collected regarding gender, age group, day of the week, time of the accident, type of vehicle involved, presence of trauma to the skull and face, and outcomes. The Chi-square and Fisher's Exact tests were used, with a significance level of 5%. Results: A total of 1,884 medical records were evaluated, out of which 7.1% (n = 133) involved pedestrians. Men were the most frequent victims (68.4%), and victims of age 60 years old or over (30.5%) predominated. Almost one-third of the cases were recorded during the weekends (30.5%), and the most prevalent time was at night (52.7%). Regarding the type of vehicle involved, motorcycles predominated (47.4%). Head trauma was present in 37.6% of victims, while facial injuries corresponded to 8.2%. In 12% of cases, the victims died. The variables of gender, age group, occurrence on weekends, and trauma to the face showed a statistically significant association with the occurrence of traffic accidents (Chi-square test; p<0.05). Conclusion: Among pedestrian victims of traffic accidents, there is a predominance of men aged 65 years or over. Accidents are frequent at night, and motorcycles are the main vehicles involved. The presence of trauma to the skull and face regions is high.


2021 ◽  
Vol 20 ◽  
pp. 153473542098834
Author(s):  
Abdolazim Sedighi Pashaki ◽  
Kamal Mohammadian ◽  
Saeid Afshar ◽  
Mohammad Hadi Gholami ◽  
Abbas Moradi ◽  
...  

Objective: Fatigue associated with malignant conditions and their treatments is a disabling condition. This trial assessed the anti-fatigue effects of melatonin coadministration during adjuvant treatment of patients with the breast cancer. Material and Methods: Patients with breast cancer were randomly assigned to receive melatonin or placebo during adjuvant chemotherapy and radiotherapy. Thirty-seven patients were randomly enrolled in each group. The mean ages of patients in the intervention and control groups were 50.47 ± 10.79 and 46.05 ± 10.55 years, respectively ( P = .223). The intervention group received oral melatonin (18 mg/day) from 1 week before until 1 month after the adjuvant radiotherapy. The level of fatigue was assessed before and after intervention using Brief Fatigue Inventory (BFI) in both groups. To analyze data, the Student’s t-test and the Chi-square test were used at a significance level of P ≤ .05. Results: The BFI score was similar before the intervention in both groups, however, after the intervention, it was significantly lower in the melatonin group ( P < .001). Moreover, the frequency of severe fatigue in the melatonin group was significantly lower than in the placebo group after intervention (42.1% vs 83.3%, P < .001). Conclusion: Coadministration of melatonin during adjuvant chemotherapy and radiotherapy of women with breast cancer decreased the levels of fatigue associated with the malignant condition and its treatments.


2018 ◽  
Vol 23 (3) ◽  
Author(s):  
Urszula Kaczmarek ◽  
Wojciech Kowalczyk ◽  
Dariusz Gozdowski ◽  
Dorota Olczak-Kowalczyk

Introduction. The use of age- and risk-adjusted caries prevention requires up-to-date knowledge on the cariostatic effects of fluoride, as well as the methods and safety of fluoride prophylaxis. Aim. The aim of the study was to assess dentists’ knowledge of the safety and mechanism of anticaries effects of fluoride. Material and methods. An anonymous questionnaire was conducted among 212 dentists participating in dental training. The questions included in the questionnaire related to knowledge about water fluoridation, fluoride cariostatic mechanisms and the safety of fluoride prophylaxis. The chi-square test and the Spearman’s rank correlation coefficient were used for statistical analysis. A significance level of 0.05 was used. Results. Incorrect knowledge about water fluoridation was demonstrated by 26.9% of respondents in the country and 16.0% of respondents in Europe. Most respondents (80.7%) reported higher efficacy of exogenous vs endogenous anticaries approaches, and more than half of respondents (59.0%) considered the processes of remineralisation and demineralisation as the most important anticaries activity. Almost all respondents (95.7%) agreed that the use of fluoride for caries prevention is controversial, mainly due to its dose-dependent therapeutic or toxic effects (85.4%). According to about 20% of respondents, cariostatic fluoride doses have adverse effects on the general health, mainly in the form of bone fragility (10.4%). Conclusions. Lack of correct knowledge about the dominant cariostatic effects of fluoride may result in the choice of an inappropriate preventive method or avoiding local application of fluoride preparations for fear of adverse systemic effects, which may in turn lead to increased caries prevalence in a given population.


Author(s):  
T. G. Svetlichnaya ◽  
A. S. Mityagina ◽  
T. M. Burkova ◽  
N. M. Ogorelkova

Relevance. The high prevalence of tooth decay requires investigation of its risk factors. The aim was to study tooth decay risk factors among six-year-old children according to the level of dental health (based on parents’ assessment).Materials and methods. The research evaluated the dental health of six-year-olds and factors defining their oral health; The study surveyed 515 parents of six-year-old children from 7 kindergartens in Arkhangelsk. Pearson chi-square test assessed the differences in the frequency of tooth decay factors among six-year-old children according to the level of dental health. The accepted significance level was 0.05.Results. The Arkhangelsk parents evaluated the dental health of their six-year-olds as relatively favourable: good (41.2%) and satisfactory (46.6%). Only 9.5% of children had poor health. Children generally had good oral hygiene skills: 86.8% liked brushing their teeth; 60.2% squeezed the optimal amount of toothpaste on the toothbrush; 56.7% brushed their teeth twice a day. The dental literacy of parents was satisfactory: 67.0% purchased toothpaste for children; 90.8% considered necessary to treat primary teeth; 69.2% replaced toothbrush every three months; 59.7% visited a pediatric dentist twice a year. The children with poor dental health had insufficient oral hygiene skills: 46.9% did not like teeth cleaning; 51.1% brushed their teeth once a day. Their diet was not healthy: 100.0% did not eat hard food; 65.3% frequently consumed sweets. The parents  of children with poor dental health had low medical literacy and poor oral hygiene: 46.9% did not know that treatment of primary teeth was necessary; 42.9% considered the treatment of primary teeth as unnecessary; 32.6% purchased whatever toothpaste. The general negative trend is to use toothpaste without fluoride (68.1%).Conclusions. The results of the study demonstrated a significantly higher frequency of cariogenic factors in children with poor dental health.


2021 ◽  
Vol 45 (5) ◽  
pp. 312-316
Author(s):  
Mishra Neha Sanjeev ◽  
Harsimran Kaur ◽  
Sandeep Singh Mayall ◽  
Rishika ◽  
Ramakrishna Yeluri

Objective: To evaluate the effectiveness of placing a resorbable collagen barrier in impeding the extrusion of obturation material in primary molars undergoing resorption. Study design: All the 94 canals in 47 mandibular molars were allocated to 2 groups- Group ‘A’- 47 canals with collagen barrier (Test group) and Group ‘B’- 47 canals without collagen barrier (Control group) based on randomization protocol. Pulpectomy was performed and obturation of both test and control canals were radiographically assessed. Pearson’s chi – square test was applied to analyze the results. The significance level was predetermined at p &lt; 0.05. Results: Among the test group, 93.6% of the canals showed no extrusion while, 6.4% showed visible extrusion of the material outside the apex. In the control group, 83% showed no extrusion whereas 17% of the canals showed visible extrusion outside the apex. But no significant difference was noted (p&gt;0.05). Conclusion: The placement of resorbable collagen barrier in the apical third of the canal prevented the extrusion of obturating material beyond the apex in resorbing primary molars.


e-NERS ◽  
2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Fransisca M.A. Wowiling ◽  
Benny Wantouw ◽  
Julia Rottie

Abstract: Early Initiation of Breastfeeding is the baby starts to suckle his own soon after birth, as long as the skin is left in contact with his mother, at least 1 hour after birth. How to initiate early breastfeeding baby was named after the breast crawl or crawl seek his own breast. This study aims to gain an overview of the relationship between knowledge and attitude of mothers VK (maternity) Prof Dr Irina D BLU. R.D. Kandou Manado. Design of this study used cross sectional method where the entire population is a normal post partum mothers in space VK (Maternity) Prof Dr Irina D BLU. R.D. Kandou Manado with a sample size of 30 responden. Data responde collected using questionnaires and observation sheets then the data presented preformance cross tabulation tables and chi square test with a significance level of 0.05. Based on the results of the study showed that of the chi square test results obtained ρ value ​> 0.05. It states that there is no correlation between knowledge and attitude with the implementation of early breastfeeding initiation (IMD) in mothers post partum in space VK (maternity) Prof. Dr Irina D BLU R.D. Kandou Manado. Keywords: Knowledge and Attitude Post Partum Mom, Implementation of Early Initiation of Breastfeeding (IMD).     Abstrak: Inisiasi Menyusu Dini adalah bayi mulai menyusu sendiri segera setelah lahir, asalkan dibiarkan kontak dengan kulit ibunya, setidaknya 1 jam setelah lahir. Cara bayi melakukan inisiasi menyusu dini ini dinamakan the breast crawl atau merangkak mencari payudara sendiri. Penelitian ini bertujuan memperoleh gambaran mengenai hubungan pengetahuan dan sikap ibu post partum dengan pelaksanaan inisiasi menyusu dini (IMD) di Ruang VK (bersalin) Irina D BLU RSUP Prof. R.D. Kandou Manado. Desain penelitian ini menggunakan metode cross sectional dimana populasinya adalah keseluruhan ibu post partum secara normal di Ruang VK (Bersalin) Irina D BLU RSUP Prof. R.D. Kandou Manado dengan besar sampel 30 responden.Data dikumpulkan dari responde dengan menggunakan lembar kuisioner dan observasi kemudian data disajikan dalm tabel tabulasi silang dan uji chi square dengan derajat kemaknaan 0,05. Berdasarkan hasil penelitian menunjukkan bahwa dari hasil uji chi square didapatkan nilai ρ > 0,05. Ini menyatakan bahwa tidak ada hubungan pengetahuan dan sikap dengan pelaksanaan inisiasi menyusu dini (IMD) pada ibu post partum di Ruang VK (bersalin) Irina D BLU RSUP Prof.Dr. R.D. Kandou Manado. Kata kunci: PengetahuandanSikapIbuPost Partum, Pelaksanaan Inisiasi Menyusu Dini (IMD).


2021 ◽  
Vol 3 (2) ◽  
pp. 92-101
Author(s):  
Adi Zayd Bintang ◽  
Ayik Mirayanti Mandagi

ABSTRACTDepression is a mental health problem that mostly occurs during adolescence. Physical, cognitive and emotional changes experienced during adolescence can cause stress. The prevalence of depression in adolescence has a very high increase compared to the age of children and adults. The main factor in being able to cure depression in adolescents is social support (Depkes, 2007). This study aims to identify depressive symptoms in adolescents and to find out the relationship between social support factors and depression incidence. This research is a quantitative research, with the type of observational analytic research with a cross sectional approach involving students at SMA XY in Jember Regency in May 2020. The analytical method uses the Chi Square test to see the relationship between independent and dependent variables with a significance level of α ≤ 0, 05. Data collection tool using google form. Determination of respondents by random sampling with a total of 158 respondents. The results of this study indicate that the distribution of women is 76.58% more than that of men. Based on the distribution of social support, 56.96% received good social support, while based on the incidence of depression, 54.43% did not experience depression. From the statistical test, the significance value of <0.05 indicates that there is a relationship between social support factors and the incidence of depression. Social support plays an effective role in overcoming depression experienced by adolescents.Keywords: Depression, Teens, social support. ABSTRAKDepresi merupakan salah satu masalah kesehatan mental yang sebagian besar terjadi pada masa remaja. Perubahan fisik, kognitif dan emosional yang dialami pada masa remaja dapat menimbulkan stress. Prevalensi depresi pada usia remaja memiliki peningkatan yang sangat tinggi dibandingkan dengan usia anak-anak dan usia dewasa. Faktor utama untuk dapat menyembuhkan depresi pada remaja yaitu dukungan sosial (Depkes, 2007). Penelitian bertujuan untuk mengidentifikasi gejala depresi pada remaja dan mengetahui mengenai Hubungan Faktor Dukungan Sosial dengan Kejadian Depresi. Penelitian ini adalah penelitian kuantitatif, dengan jenis penelitian analitik observasional dengan pendekatan cross sectional yang melibatkan siswa di SMA XY di Kabupaten Jember pada Bulan Mei tahun 2020. Metode analisis menggunakan uji Chi Square untuk melihat hubungan variabel independen dan dependen dengan tingkat kemaknaan α ≤ 0,05. Alat pengumpulan data menggunakan google form. Penentuan responden secara random sampling dengan jumlah 158 reponden. Hasil penelitian ini menunjukan distribusi perempuan 76,58% lebih banyak daripada laki-laki, berdasarkan distribusi dukungan sosial sebesar 56,96% mendapatkan dukungan sosial yang baik, sedangkan berdasarkan kejadian depresi sebesar 54,43% tidak mengalami depresi. Dari uji statistik nilai signifikansi sebesar < 0,05 menunjukkan bahwa ada hubungan antara faktor dukungan sosial dengan kejadian depresi. Dukungan sosial berperan efektif dalam mengatasi depresi yang dialami remaja.Kata Kunci: Depresi, Remaja, Dukungan Sosial.


2015 ◽  
Vol 28 (3) ◽  
pp. 319-326 ◽  
Author(s):  
Vanessa Ribeiro dos Santos ◽  
Diego Giulliano Destro Christofaro ◽  
Igor Conterato Gomes ◽  
Ricardo Ribeiro Agostinete ◽  
Ismael Forte Freitas Júnior ◽  
...  

OBJECTIVE: To analyze whether sarcopenia is associated with sociodemographic factors and chronic noncommunicable diseases in adults aged 80 years and older. METHODS: The sample consisted of 120 adults aged 80 to 95 years (83.4±2.9 years) from the city of Presidente Prudente (São Paulo, Brazil), of which 76 were females (83.4±3.0 years) and 44 were males (83.4±2.6 years). The study sociodemographic and epidemiological factors were: age stratum, gender, marital status, education level, chronic noncommunicable diseases, ethnicity, and nutritional status. Body composition was determined by Dual-Energy X-Ray Absorptiometry and sarcopenia was identified by the appendicular lean mass ratio (upper limb lean mass + lower limb lean mass [kg]/height [m]2). The Chi-square test analyzed whether sarcopenia was associated with sociodemographic and epidemiological factors and binary logistic regression expressed the magnitude of the associations. The data were treated by the software Statistical Package for the Social Sciences (17.0) at a significance level of 5%. RESULTS: The factors associated with sarcopenia were gender, age, nutritional status, and osteopenia/osteoporosis. CONCLUSION: The factors gender, age, nutritional status, and osteopenia/osteoporosis are independently associated with sarcopenia in adults aged 80 years and older.


2011 ◽  
Vol 24 (2) ◽  
pp. 327-335 ◽  
Author(s):  
Daniela D'Attilio Toledo ◽  
Anny Caroline Dedicação ◽  
Maria Elisabete Salina Saldanha ◽  
Miriam Haddad ◽  
Patricia Driusso

INTRODUCTION: Urinary incontinence affects more than 50 million people worldwide, it has a great impact on quality of life by affecting social, domestic, occupational and sex life, regardless of age. Objective: The objective of this study was to analyze the effectiveness of physical therapy treatment in women attending the Urogynecology service of Hospital and Maternity Leonor Mendes de Barros. METHOD: We retrospectively assessed 65 records of patients with diagnosis of urinary incontinence treated between November 2005 and November 2006. In order to have their data analyzed, patients were divided into two groups; group MF, which underwent medical treatment and physiotherapy, and group M, which had only medical treatment. In order to compare both groups' quantitative data, the analysis was performed in Statistica® software using Mann Whitney's non-parametric test. The analysis of association between the quantitative variables was performed through the Chi-Square test at 5% (p > 0.05) significance level. RESULTS: We observed that 60.6% of patients who underwent physical therapy treatment and medical treatment had the urinary incontinence symptoms decreased or completely cured, while 80% of women belonging to the medical treatmen only-group underwent surgery. CONCLUSION: Thus, we conclude that physical therapy is essential in treatment protocols of urinary incontinence outpatient clinics and to prevent surgery.


Sign in / Sign up

Export Citation Format

Share Document