• Title/Summary/Keyword: statistical treatments

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Factors Affecting Mother's Dental Utilization in Metropolitan Area (대도시 지역 일부 어머니들의 치과의료 이용행태에 영향을 미치는 관련요인 분석)

  • Kim, Ji-Young;Nam, Yong-Ok
    • Journal of Korean society of Dental Hygiene
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    • v.3 no.2
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    • pp.143-155
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    • 2003
  • The present study attempted to analyze the influence of the mother's demographic characteristics and knowledge on oral health as well as dental care behaviors on her practice of using dental care institutions. A self-report survey was conducted among 172 mothers of children aged 5-6 attending on three preschools located in Daegu metropolitan city. Statistical analysis was conducted using the SAS 8.01 with $X^2$-test, t-test and logistic regression. The obtained results were as follows: 1. No significant association was found among the demographic characteristics of the mother, her past experience as well as the purpose of using dental care institutions. 2. There was significant relationship between the mother's knowledge and behavior concerning oral health and her past experience of using dental care institutions; the mothers having a higher level of knowledge and who thought they themselves didn't have healthy teeth and gum tended to have more visits to dental care institutions(pE0.05). There was also significant relationship between their purpose and their actual practice of using dental care institutions: the mothers having a higher level of knowledge and who thought their own oral health was good tended to visit dental institutions more for the preventive purpose than for treatments(pE0.05). 3. As a result of logistic regression, the variables formed as models were their knowledge on oral health and their values for oral health. The standardized coefficients for the two variables were -0.19 and 0.19, respectively. For the mother's purpose of visiting dental care institutions, the variables formed as models were their knowledge on oral health and their values for oral health. The standardized coefficients for the two variables were -0.40 and -0.37, respectively. The relative contributions of the two variables to the mother's practice of using dental care institutions were on the similar level.

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Effects of Replacing Sugar with Xylitol and Sorbitol on the Textural Properties and Sonsory Characteristics of injeolmi (자일리톨과 솔비톨로 설탕을 대체한 인절미의 물성 및 관능적 특성)

  • Choi, Yun-Sang;Kim, Hyun-Wook;Hwang, Ko-Eun;Kim, Cheon-Jei;Lee, Hong-Mie;Kim, Ok-Kyung;Choi, Kyung-Suk;Chung, Hai-Jung
    • Korean journal of food and cookery science
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    • v.29 no.6
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    • pp.825-831
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    • 2013
  • The study examined the physico-chemical properties and sensory characteristics of injeolmi when sugar was substituted to sugar alcohol such as sorbitol and xylitol. The moisture content, crude protein content, crude fat content, crude ash content, energy value, redness, water activity, hardness, cohesiveness, gumminess, and chewiness were not significantly different between the control with sugar and treatments with the sugar alcohol group (p>0.05). The lowest sugar content of injeolmi was observed in the treatment with sorbitol (T1). The adhesiveness of control was higher than that in treatment with sugar alcohol (p<0.05), but control had the lowest springiness (p<0.05). Although the sensory characteristics on color, flavor, tenderness did not show any statistical significance, the sweetness and the overall acceptability were the best in control and T5 group, which replaced sugar to 100% xylitol (p<0.05). The results of this study show that substitution by xylitol improved quality characteristics in injeolmi.

Is Surgical Staging Necessary for Patients with Low-risk Endometrial Cancer? A Retrospective Clinical Analysis

  • Kokcu, Arif;Kurtoglu, Emel;Celik, Handan;Kefeli, Mehmet;Tosun, Migraci;Onal, Mesut
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.13
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    • pp.5331-5335
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    • 2015
  • Purpose: The aim of this study was to compare the tumor-free and overall survival rates between patients with low-risk endometrial cancer who underwent surgical staging and those who did not undergo surgical staging. Materials and Methods: Data, including demographic characteristics, grade of the tumor, myometrial invasion, cervical involvement, peritoneal washing, lymph node involvement, lymphovascular space invasion, postoperative complication, adjuvant treatment, cancer recurrence, and tumor-free and overall survival rates, for patients with low-risk endometrioid endometrial cancer who were treated surgically with and without pelvic and paraaortic lymph node dissection (LND) were analyzed retrospectively. The patients diagnosed with endometrioid endometrial cancer including the following criteria were considered low-risk: 1) a grade 1 (G1) or grade 2 (G2) endometrioid histology; 2) myometrial invasion of <50% upon magnetic resonance imaging (MRI); 3) no stromal glandular or stromal invasion upon MRI; and 4) no evidence of intra-abdominal metastasis. Then the patients at low-risk were divided into two groups; group 1 (n=117): patients treated surgically with pelvic and paraaortic LND and group 2 (n=170): patients treated surgically without pelvic and paraaortic LND. Results: There was no statistical significance when the groups were compared in terms of lymphovascular space invasion, cervical involvement, positive cytology, and recurrence, whereas the administration of an adjuvant therapy was higher in group 2 (p<0.005). The number of patients with positive pelvic nodes and the number of metastatic pelvic nodes were significantly higher in the group with positive LVI than in the group without LVI (p<0.005). No statistically significant differences were detected between the groups in terms of tumor-free survival (p=0.981) and overall survival (p=0.166). Conclusions: Total hysterectomy with bilateral salpingo-oophorectomy and stage-adapted postoperative adjuvant therapy without pelvic and/or paraaortic lymphadenectomy may be safe and efficient treatments for low-risk endometrial cancer.

CYP3A4 Expression in Breast Cancer and its Association with Risk Factors in Mexican Women

  • Floriano-Sanchez, Esau;Rodriguez, Noemi Cardenas;Bandala, Cindy;Coballase-Urrutia, Elvia;Lopez-Cruz, Jaime
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.8
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    • pp.3805-3809
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    • 2014
  • Background: In Mexico, breast cancer (BCa) is the leading type of cancer in women. Cytochrome P450 (CYP450) is a superfamily of major oxidative enzymes that metabolize carcinogens and many antineoplastic drugs. In addition, these enzymes have influence on tumor development and tumor response to therapy. In this report, we analyzed the protein expression in patients with BCa and in healthy women. Links with some clinic-pathological characteristic were also assessed. Materials and Methods: Immunohistochemical analyses were conducted on 48 sets of human breast tumors and normal breast tissues enrolled in Hospital Militar de Especialidades de la Mujer y Neonatologia and Hospital Central Militar, respectively, during the time period from 2010 to 2011. Informed consent was obtained from all participants. Statistical analysis was performed using ${\chi}^2$ or Fisher exact tests to estimate associations and the Mann Whitney U test for comparison of group means. Results: We found a significant CYP3A4 overexpression in BCa stroma and gland regions in comparison with healthy tissue. A significant association between protein expression with smoking, alcoholism and hormonal contraceptives use was also observed. Additionally, we observed estrogen receptor (ER) and progesterone receptor (PR) positive association in BCa. Conclusions: We suggest that CYP3A4 expression promotes BCa development and can be used in the prediction of tumor response to different treatments. One therapeutic approach may thus be to block CYP3A4 function.

Integration of Tobacco Control in Masters of Public Health Curricula of India

  • Yadav, Aman;Goel, Sonu;Sharma, Vijay Lakshmi
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.14
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    • pp.5611-5615
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    • 2014
  • Context: Tobacco is the single largest cause of preventable death among adults globally, as it is in India. Despite this alarming situation, there is very minimal inclusion of tobacco in formal education systems, including the medical discipline, in India. Aims: The present study analyzed the extent of integration of tobacco control related content in Masters of Public Health (MPH) curricula of various institutes in India. Materials and Methods: This cross-sectional study was conducted during January 2011 to May 2011 in all colleges of the country offering a MPH course. The colleges were enlisted using various internet search engines (Google Scholar, Pubmed, Medline), other published literature and snowball technique. A 50 items semi-structured questionnaire was designed, posted and e-mailed (followed by hard copy) to the Person-In-Charge of the MPH program. Statistical Analysis: Descriptive statistics were used to profile the tobacco control content in respective institutions. All data entry and analysis was conducted using SPSS (version 16) for windows. Results: The duration of the MPH course was two years in all institutes and had accreditation with some affiliated body. Tobacco related diseases were covered under 'non communicable diseases' section by every institute. However, a mere 41.4% of institute's had faculty who had received specialized training in tobacco control. More coverage was given to health risks and effects of smoking as compared to cessation interventions (5 A's), symptoms of withdrawal and pharmacological treatments. Only 25% of institutes were in process of introducing tobacco courses into their curricula. Lack of expertise and administrative barriers were cited as perceived major problems in inclusion of tobacco control in MPH curricula. Conclusions: It can be concluded that tobacco control is not receiving adequate attention in public health curricula in India. There is a need for coordinated efforts in the area of tobacco control so as to reduce morbidity and mortality from tobacco induced diseases.

A Study on the Recognition and Actual Condition of Korea Medical Doctors in Oriental Medical Care of Hypertension (국내 임상한의사의 고혈압 한방치료 인식 및 실태조사)

  • Shin, Mi-Suk;Han, Chang-Hyun;Kim, Bo-Young;Kim, Ki-Jin;Park, Sun-Hee;Choi, Sun-Mi
    • Journal of Acupuncture Research
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    • v.25 no.6
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    • pp.23-33
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    • 2008
  • Objectives : The study was accomplished to find out how korean medical doctor take oriental medical service for hypertension patients in clinical practice Methods : Survey questions were developed based on consensus of 2 clinician, 2 oriental internal medicine specialist and 1 acupuncture specialist. The list of the Korean oriental medical doctors is provided by the Association of the Korean Oriental Medicine. The questionnaire were distributed via E-mail to 9,465 members of Korean oriental medical doctors from 19th August 2008 to 11th September 2008. One thousand sixty three(11.24% of 9,465) members completed answer and the computerized data were analyzed by SAS statistical program Results : Fifty-one percent of Korean oriental medical doctors has experienced hypertension treatment. The most common medical diagnosis method was pattern diagnosis(64.2%). Saam and five element acupuncture were as frequent as 32.3% of acupuncture prescription principle. The most common acupuncture points were region of shoulder and back acupoints inclued $GB_{21}$, $GV_{14}$(25%). The most common herbs prescription principle were 'constitution prescription'(35.4%), 'pattern prescription'(12.6%). The most common opinion for the revitalization of oriental medical service were 'medical insurance system of herbal medicine'(28.8%) and 'research of oriental medical treatments in hypertensive patients'(26.8%). Conclusions : This survey provides unique insight into the perception, treatment method of the Korea medical doctor at oriental medical service for hypertension patient. This study provides a wealth of information and a fresh raft of questions which will inform future research and policy-making.

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Changes in maximum lip-closing force after extraction and nonextraction orthodontic treatments

  • Choi, Tae-Hyun;Kim, So-Hyun;Kim, Cheul;Kook, Yoon-Ah;Larson, Brent E.;Lee, Nam-Ki
    • The korean journal of orthodontics
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    • v.50 no.2
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    • pp.120-128
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    • 2020
  • Objective: The aims of the present study were to evaluate the changes in the maximum lip-closing force (MLF) after orthodontic treatment with or without premolar extractions and verify the correlation of these changes with dentoskeletal changes. Methods: In total, 17 women who underwent nonextraction orthodontic treatment and 15 women who underwent orthodontic treatment with extraction of all four first premolars were included in this retrospective study. For all patients, lateral cephalograms and dental models were measured before (T0) and after (T1) treatment. In addition, MLF was measured at both time points using the Lip De Cum LDC-110R® device. Statistical analyses were performed to evaluate changes in clinical variables and MLF and their correlations. Results: Both groups showed similar skeletal patterns, although the extraction group showed greater proclination of the maxillary and mandibular incisors and lip protrusion compared to the nonextraction group at T0. MLF at T0 was comparable between the two groups. The reduction in the arch width and depth and incisor retroclination from T0 to T1 were more pronounced in the extraction group than in the nonextraction group. MLF in the extraction group significantly increased during the treatment period, and this increase was significantly greater than that in the nonextraction group. The increase in MLF was found to be correlated with the increase in the interincisal angle and decrease in the intermolar width, arch depth, and incisor-mandibular plane angle. Conclusions: This study suggests that MLF increases to a greater extent during extraction orthodontic treatment than during nonextraction orthodontic treatment.

Effects of vitamin D supplementation on metabolic indices and hs-CRP levels in gestational diabetes mellitus patients: a randomized, double-blinded, placebo-controlled clinical trial

  • Yazdchi, Roya;Gargari, Bahram Pourghassem;Asghari-Jafarabadi, Mohammad;Sahhaf, Farnaz
    • Nutrition Research and Practice
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    • v.10 no.3
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    • pp.328-335
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    • 2016
  • BACKGROUND/OBJECTIVES: Vitamin D plays an important role in the etiology of gestational diabetes mellitus (GDM). This study evaluated the effect of vitamin D supplementation on metabolic indices and hs-C-reactive protein (CRP) levels in GDM patients. SUBJECTS/METHODS: The study was a randomized, placebo-controlled, double-blinded clinical trial. Seventy-six pregnant women with GDM and gestational age between 24-28 weeks were assigned to receive four oral treatments consisting of 50,000 IU of vitamin $D_3$ (n = 38) or placebo (n = 38) once every 2 weeks for 2 months. Fasting blood glucose (FG), insulin, HbA1c, 25-hydroxyvitamin D, lipid profile, hs-CRP, and homeostasis model assessment-insulin resistance (HOMA-IR) were measured before and after treatment. Independent and paired t-tests were used to determine intra- and intergroup differences, respectively. ANCOVA was used to assess the effects of vitamin D supplementation on biochemical parameters. RESULTS: Compared with the placebo group, in the vitamin D group, the serum level of 25-hydroxyvitamin D increased (19.15 vs. -0.40 ng/ml; P < 0.01) and that of FG (-4.72 vs. 5.27 mg/dl; P = 0.01) as well as HbA1c (-0.18% vs. 0.17%; P = 0.02) decreased. Improvements in the lipid profiles were observed in the vitamin D group, but without statistical significance. Significant increases in concentrations of hs-CRP, FG, HbA1c, total cholesterol, and LDL cholesterol were observed in the placebo group. No significant change in fasting insulin and HOMA-IR was observed in either group. CONCLUSIONS: In GDM patients, vitamin D supplementation improved FG and HbA1c but had no significant effects on lipid profile or hs-CRP.

The Effect of Irrigation Concentration on the Growth and Fruit Quality of Sweet Pepper(Capsicum annuum L.) in Fertigation (관비재배에서 급액농도가 착색단고추의 생육과 품질에 미치는 영향)

  • 배종향;김귀호
    • Journal of Bio-Environment Control
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    • v.13 no.3
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    • pp.167-171
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    • 2004
  • Objective of this research was to investigate the effect of irrigation concentration on the growth and fruit quality of sweet pepper(Capsicum annuum L.) in fertigation. The sweet pepper was grown for 210 days with irrigation concentration of EC 0.5, 1.0, 1.5, 2.0, and 3.0 dSㆍ$m^{-1 }$ in fertigation nutrient solution developed by European Vegetable R & D Center, Belgium. The net $CO_2$ assimilation and transpiration rate were the highest in the treatment of 2.0 dSㆍ$m^{-1 }$. The pH in the soil was range of 5.63 ~6.03, the EC increased as the irrigation concentration was getting higher. The SPAD value also increased as the irrigation concentration was getting higher, N, P, K, Mg except Ca were highest in the treatment of EC 2.0 dSㆍ$m^{-1 }$. The growth was good in the treatment of EC 2.0 dSㆍm$m^{-1 }$. The fruit length, width, firmness, and pericarp thickness had no statistical differences among treatments, the fruit fresh weight and dry weight were good in the treatment of EC 2.0 dSㆍ$m^{-1 }$ the yield was good in the treatment of EC 1.5 dSㆍ$m^{-1 }$ and EC 2.0 dSㆍ$m^{-1 }$ The sugar contents was the highest in the treatment of EC 2.0 dSㆍ$m^{-1 }$ with 9.0$^{\circ}$Brix. In conclusion, the optimal irrigation concentration for sweet pepper fertigation was EC 2.0 dSㆍm$^{-1}$ .

A HISTOMORPHOMETRIC STUDY OF BONE APPOSITION TO NEWLY DEVELOPED TI-BASED ALLOYS IN RABBIT BONE (가토의 경골에 이식된 새로운 티타늄계 합금 주위의 골형성에 관한 형태학적 연구)

  • Kim, Tae-In
    • The Journal of Korean Academy of Prosthodontics
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    • v.36 no.5
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    • pp.701-720
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    • 1998
  • Research advances in dental implantology have led to the development of several different types of materials and it is anticipated that continued research will lead to advanced dental implant materials. Currently used pure titanium has relatively low hardness and strength which may limit its ability to resist functional loads as a dental implant. Ti-6Al-4V also has potential problems such as corrosion resistance. osseointegration properties and neurologic disorder due to aluminium and vanadium, known as highly toxic elements, contained in Ti-6Al-4V. Newly developed titanium based alloys(Ti-20Zr-3Nb-3Ta-0.2Pd-1In, Ti-20Zr-3Nb-3Ta-0.2Pd) which do not contain toxic metallic components were designed by the Korea Institute of Science and Technology (KIST) with alloy design techniques using Zr, Nb, Ta, Pd, and In which are known as non-toxic elements. Biocompatibility and osseointegration properties of these newly designed alloys were evaluated after implantation in rabbit femur for 3 months. The conclusions were as follows : 1. Mechanical properties of the new designed Ti based alloys(Ti-20Zr-3Nb-3Ta-0.2Pd-1In, Ti-20Zr-3Nb-3Ta-0.2Pd) demonstrated close hardness and tensile strength values to Ti-6Al-4V. 2. New desinged experimental alloys showed stable corrosion resistance similar to the pure Ti but better than Ti-6Al-4V. However, the corrosion rate was higher for the new alloys. 3. Cell culture test showed that the new alloys have similar cell response compared with pure Ti and Ti-6Al-4V with no cell adverse reaction. 4. New designed alloys showed similar bone-metal contact ratio and osseointegration properties compared to pure Ti and Ti-6Al-4V after 3 months implantation in rabbit femur. 5. Four different surface treatments of the metals did not show any statistical difference of the cell growth and bone-metal contact ratio.

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