• Title/Summary/Keyword: Two-sample T-test

Search Result 581, Processing Time 0.033 seconds

A study on TMD and stress of first children (첫째 아이의 스트레스와 측두하악장애에 관한 연구 - 고등학생을 중심으로 -)

  • Kim, Myung-Eun
    • Journal of Korean society of Dental Hygiene
    • /
    • v.10 no.4
    • /
    • pp.683-693
    • /
    • 2010
  • Objectives : The purpose of this study was to examine the relation between stress and temporomandibular disorder(TMD) of first the child. Methods : 500(the first child -250, non first child -250) high school students living in Jecheon city, form November 4th to 5th 2009, were the subjects of this questionnaire. The questionnaire was made up of three contests: sociodemographic characteristic, symptom & dysfunction of TMD and stress of high school students. The data were analyzed by chi-square test, two sample t-test and Pearson correlation. Results : Only 443(the first child -209, non first child - 234) students were evaluated due to inadequate responses. The obtain results was as follow. 1. Subjective symptom of TMD reported by 443 students were joint sound(63.5%), pain on chewing(55.1%), pain on opening the mouth(55.1%). 2. Analysis of subjective symptom of TMD showed the first child group was statistical significantly higher on joint sounds and TMJ pain than non first child group(<0.05). 3. Analysis of bad habit and dysfunction showed the first child group was statistical significantly higher on clenching of the teeth, difficulties of bite, headache than non first child group(<0.05). 4. Analysis of stress showed the first child group was statistical significantly higher on stress with parents than non first child. especially on marks and disagreement(<0.05). 5. Stress were partly related to subject symptom of TMD(<0.05, <0.01). 6. Analysis of relation stress and bad habit & dysfunction showed stress were partly related to bad habit & dysfunction(<0.05, <0.01). 7. bad habit were partly related to TMD(<0.05, <0.01). Conclusions : The first child stress and symptom of TMD were higher than non-first child, also stress and symptom of TMD was positively associated. therefore management of the first child' stress is necessary and related study is necessary in the future.

Profile of chronic and aggressive periodontitis among Senegalese

  • Benoist, Henri Michel;Seck-Diallo, Adam;Diouf, Abdoulaye;Yabbre, Salama;Sembene, Malick;Diallo, Papa Demba
    • Journal of Periodontal and Implant Science
    • /
    • v.41 no.6
    • /
    • pp.279-284
    • /
    • 2011
  • Purpose: To describe the profile of chronic and aggressive periodontitis among Senegalese (West Africans) attending the Institute of Dentistry of Dakar. Methods: A retrospective study was conducted with an inclusion period running from 2001 to 2008. The sample included 413 chronic periodontitis and 151 aggressive periodontitis cases, among them 299 males and 265 females selected from 2,274 records. A Student's independent t-test or Pearson chi-squared test was used for data analysis. Results: The proportion of females with aggressive periodontitis was significantly higher than those with chronic periodontitis (64.9% vs. 40.4%, P<0.001). The aggressive periodontitis patients had an average age of $28.1{\pm}8.9$ years, and had lost less than 3 teeth. Less than a third of them reported using a toothbrush. Attachment loss was as high as 8 mm and severe lesions had spread to an average of 12 teeth with maximum alveolar bone loss up to 80%. The chronic periodontitis patients had an average age of $44.9{\pm}14.0$ and had lost on average less than 3 teeth. Nearly 75% used a toothbrush. Attachment loss was significantly higher and lesions were more extensive in the aggressive periodontitis. Chronic periodontitis is associated with risk factors such as smoking or diabetes mellitus in 12.8% versus 0.7% in aggressive periodontitis (P<0.001). Differences between the two groups for most clinical and radiographic parameters were statistically significant. Conclusions: The profile of aggressive periodontist is characterized by more severe lesions than chronic periodontitis, whereas tooth loss experience is similar in both forms.

A Diagnostic Study on Middle School Students' Health Hazard Behaviors and Influential Variables - Based on the PRECEDE model- (중학생의 건강위해 행위 및 관련요인에 대한 진단적 연구 -PRECEDE 모형을 근간으로-)

  • Yoo, Jae-Soon
    • Journal of the Korean Society of School Health
    • /
    • v.15 no.1
    • /
    • pp.31-48
    • /
    • 2002
  • The middle school students' health hazard behaviors, health education needs, related to health hazard behaviors and life, were investigated on the basis of the PRECEDE model, for the purpose of a diagnostic research on health education. The data for this study were collected from the sample consisted of the middle school in Chongju for two weeks period in December, 2001. In analyzing the data, t-test, one-way ANOVA and $x^2$-test were done by using SPSS 10.1 for window to compare data between the sexes of the students and grades of the students. A Pearson's correlation analysis was carried out to determine the relationships among the diagnostic variables. The Pearson's correlation between health behavior and life satisfaction was .52, which was significant at the level of P<.01. The Pearson's correlation between drug use behavior and mental health was .40, which was significant at the level of P<.01. The relationships between each diagnosis variable suggested by the PRECEDE model had been experimentally proven to be valid, supporting the conceptual framework of the study as appropriate for assessing the students' health and health education needs. The significance of this research is that it has diagnosed the needs of middle school health education by assessment of factors related to health hazard behaviors and meantal health of the students. The research findings suggest an integrated system of school health education to be contrieved to enhance the effectiveness of the education by strengthening the related factors such as parents' interest to improve the health of middle school students.

Knowledge, Attitude, Practice and Related Factors about Low Salt Diet in University Students (대학생의 저염식이에 대한 지식, 태도, 행위와 관련요인)

  • Woo, Sang Jun;Cho, Yoo Hyang;Chung, Younghae;Park, Young Hee
    • The Journal of Korean Society for School & Community Health Education
    • /
    • v.16 no.2
    • /
    • pp.89-100
    • /
    • 2015
  • Objectives: This study was carried out to measure knowledge, attitude, and practice and related factors of low-salt diet among university students. Methods: Data from a convenience sample of 251 nursing and engineering students of two universities in south-western part of Korea were collected during March 16~20, 2015 using a self-reporting questionaire and urine test. The instruments developed by Lee and Song(1999) were used to measure knowledge and practice, and Ahn(2013) for attitude toward low-salt diet. A spot urine salt stick($SaltSinal^{(R)}$) was also used to evaluate practice of low-salt diet. Data were analyzed using SPSS 21.0, and t-tests, ANOVA, Pearson correlation, and Scheffe test were used. The study was IRB approved. Results: Knowledge, attitude, and practice of low-salt diet was low and spot urine salt level was high among university students. Knowledge and attitude were higher and spot urine salt level was lower among nursing students. Knowledge and attitude were related to gender and drinking. Living arrangement, monthly allowance, smoking, frequency of eating-out, frequency of breakfast were shown not to be related to knowledge and attitude. None of the variable investigated were significantly related to practice of low-salt diet. However, spot urine salt was related with gender, living arrangement, and smoking. Conclusions: A rigorous health education is necessary in order to lower dietary salt among university students. Considering frequent eating-out among university students, it is also very important to lower salt amount in foods sold on- and off-campus.

Factors Associated with Cognitive Impairment of the Elderly in Nursing Homes (노인요양시설 입소노인의 인지장애 관련요인)

  • Lee, Young-Mi
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.13 no.9
    • /
    • pp.3973-3982
    • /
    • 2012
  • The purpose of this study was to identify cognitive impairment and it's related factors of the elderly in long term care facilities. The participants of this study were 229 residents of five nursing homes. Data were analyzed using two sample t-test, ${\chi}^2$-test, and logistic regression. The results revealed eight factors related to cognitive impairment: gender(OR=2.41, p=.035), age(75-84: OR=3.26, p=.002, Over 85: OR=4.46, p<.001), living with family before admission(OR=2.17, p=.015), hearing(OR=8.88, p=.004), family history of dementia(OR=4.39, p=.009), ADL(OR=0.82, p<.001), hypertension(OR=4.07, p<.001), and diabetes(OR=3.42, p=.001). Based on the findings of this study, continuous nursing intervention focused on adjustable factors would be helpful in order to improve nursing home elderly people's quality of life.

Effectiveness of an Intervention Program on Knowledge of Oral Cancer among the Youth of Jazan, Saudi Arabia

  • Quadri, Mir Faeq Ali;Saleh, Sanaa Mahmoud;Alsanosy, Rashad;Abdelwahab, Siddig Ibrahim;Tobaigy, Faisal Mohamed;Maryoud, Mohamed;Al-Hebshi, Nezar
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.5
    • /
    • pp.1913-1918
    • /
    • 2014
  • Background: The study is the first of its kind to be conducted in Saudi Arabia (KSA), aiming to analyze the effectiveness of an intervention program in improving the knowledge of oral cancer among the youth. Materials and Methods: A total of 1,051 young Saudis (57% males and 43% females with a mean age of $20.4{\pm}1.98$) were selected using multi-stage cluster sampling. Knowledge assessment was accomplished using a closed-ended questionnaire which was subjected to reliability tests. Prevalence of risk factors in relation to gender was analyzed using the chi-squared test. Effectiveness was calculated by comparing the pre- and post-intervention means, using the two-tailed paired t-test. Multiple logistic regression was employed in order to determine factors associated with awareness of risk habits, signs/symptoms and prevention of oral cancer. The significance level in this study was set at 0.05. Results: Females were seen to be more into the habit of sheesha smoking (3.3% rather than the use of other forms of risk factors. Prevalence of diverse risk factors such as cigarette smoking (20%), sheesha (15.3%), khat (27%) and shamma (9%) was seen among males. Gender and the use of modifiable risk factors among the study sample were significantly (p<0.001) associated with effectiveness of the intervention. The intervention program was highly effective (p<0.001) in improving the knowledge of oral cancer among the youth in Jazan, KSA. Multivariate analysis revealed that age and gender are the most significant factors affecting knowledge. Conclusions: The study gives a direction for further public health initiatives in this oral cancer prone region.

Increase in the Rate of HPV Positive Oropharyngeal Cancers During 1996-2011 in a Case Study in Turkey

  • Tural, Deniz;Elicin, Olgun;Batur, Sebnem;Arslan, Deniz;Oz, Buge;Serdengecti, Suheyla;Uzel, Omer
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.14 no.10
    • /
    • pp.6065-6068
    • /
    • 2013
  • Background: Primary aim of this study is to assess whether or not there is an increase at rate of HPV positive oropharyngeal cancers during 1996-2011 in Turkey, for comparison with prior reports from Western countries. Materials and Methods: A total of 138 newly diagnosed patients with oropharyngeal cancer were identified, 39 of which had no primary tumor specimen available and 18 patients with invalid HPV status, therefore HPV status for remaining 81 patients was evaluated. The presence and type of HPV DNA were determined with formalin-fixed paraffin embedded specimens, using an HPV DNA-based multiplex PCR assay. Associations between HPV status and clinicopathological characteristics were evaluated using a two-sample t-test for the continuous variables and the categorical variables were compared by chi-square test. Overall survival (OS) periods were calculated with Kaplan-Meier method. Results: The proportion of HPV-positive cancer has continued to increase during 2004-2011 as compared with 1996-2003. Notably, 33% (6/18) of the cases were HPV-positive in 1996-1999, 43% (9/21) in 2000-2003, 55% (11/20) in 2004-2007 and 70% (16/23) in 2008-2011. Thus, when we compared the results obtained during the 2004-2011with results of 1996-2003 period, we found that increase at HPV-positivity ratio was statistically significant (38% vs 64% p=0.012). Conclusions: This study demonstrated that HPV positive oropharyngeal cancers are increasing in Turkish patients as in the Western world.

The Effect of Psychoeducational Intervention for Symptom Management of Home Cancer Patient (재가 암 환자의 증상관리를 위한 심리교육 중재효과)

  • Suh, Soon-Rim;Lee, Won-Kee
    • Asian Oncology Nursing
    • /
    • v.3 no.1
    • /
    • pp.56-65
    • /
    • 2003
  • Purpose: The study was to develop psychoeducational intervention and identify its effect for symptom management of home cancer patient. Method: Study subjects were 24 patients in control group and 18 patients in experimental group. In experimental group, individualized psychoeducation was done after pretest and then continued to educate and consult through calling by telephone once a week for 4 weeks. The data were collected using several tools such as symptom distress by McCorkle(2000). Physical functioning, a part of Medical Outcome Study by Ware and Sherbouine(1992) and QOL- cancer patient version by Ferrell and Grant(1995) from 18th of Feb. to 30th of July. Data were analysed to ${\chi}^2$ test and t test using SAS VER8.12. Results: The mean score of symptom distress was 21.6 in experimental group and 24.2 in control group. Experimental group was shown lower score than control group. Physical functioning of experimental group was better as mean score 23.3 than 20.6 in control. Psychological wellbeing was 69.7 in experimental group and 66.1 in control group. Social wellbeing was 32.2 in experiment and 25.8 in control. Psychosocial wellbeing of experimental group was higher than control group. However there was no significant differernce between two groups among these variables. Conclusion: The psycho educational intervention was not made symptom mangement, physical functioning, and psycho social wellbeing improved but shown positive tendency. It is expected having a statistically significant finding if enlarged sample size and prolonged the intervention term in future. Therefore it is suggested psycho educational intervention study do repeatedly.

  • PDF

Effect of an Integrated Stress Management Program on the Stress Symptoms of Psychophysiological Patients (통합적 스트레스 관리 프로그램이 정신생리질환자의 스트레스증상에 미치는 영향 -소화성 궤양 환자를 중심으로-)

  • 한금선
    • Journal of Korean Academy of Nursing
    • /
    • v.27 no.2
    • /
    • pp.289-302
    • /
    • 1997
  • The main purpose of this study was to identify the effects of integrated stress management program on the stress symptoms of psychophysiological patients. especially patients with peptic ulcer. The study employed a quasi-experimental design using two different experimental groups. The samples in the integrated stress management program participated in autogenic training with biofeedback. discussions on effective coping method. cognitive. behavioral, and emotional management. They were also provided with an educational booklet on stress management and an tape on progressive muscie relaxation. Each session lasted one hour and the program consisted of seven sessions over four weeks. The other group was only given an tape on progressive muscle relaxation. The data were collected from May 20 to september 25, 1996. A total 47 patients from one university hospital located in Seoul participated, experiment group 1(integrated stress management training) had 23 subjects and experiment group 2(progressive muscle relaxation training) had 24 subjects. The effects of these programs were measured by the stress symptom scale developed by Kogan(1991) which was translated by Lee(1992) and the healing status of the ulcer evaluated by a physician. The data were analyzed using Chi-square test, t- test, ANOVA, repeated measure ANOVA. The result are as follows : 1. The integrated stress management group reported a significantly lower stress symptom score than the group given the progressive muscle relaxation only. 2. The integrated stress management group showed a significantly improved ulcer status as compared to the group given a progressive muscle relaxation only. In conclusion, it was found that the integrated stress management program was more effective in decreasing self-reported stress and physiological symptoms among patients with peptic ulcer as compared to the progressive muscle relaxation group. Based on this finding, the following suggestions can be made. 1. It is necessary to broaden the scope of nursing practice for psychophysiological patients so nurses can include stress management as part of patient care. 2. It is necessary to develop stress management program for other patients whose symptoms are known to be related to stress. 3. It is necessary to replicated this study with a larger sample in different settings.

  • PDF

Comparison the Prevalence of Metabolic Syndrome and Obesity Index between Patients with Silent Lacunar Infarction and Normal Controls in a University Hospital (일개 대학병원에 내원한 무증상성 열공성 뇌경색 환자와 정상인에서 비만 지수와 대사증후군 유병률 비교)

  • Jeong, Hyun-Yun;Kim, Do-Kyung;Son, Ho-Yong;Shin, Yoon-Ri;Lee, Jae-Wook;Kim, Kyoung-Min;Kim, Young-Kyun;Kwon, Jung-Nam;Park, Sun-Mi
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.24 no.3
    • /
    • pp.519-524
    • /
    • 2010
  • This clinical study was done to examine comparison the prevalence of metabolic syndrome and obesity index between patients with silent lacunar infarction and normal controls. We compared the components of metabolic syndrome and obesity index between patients silent lacunar infarction(n=62) and normal controls(n=72). The analysis of the data was done by Frequency Analysis, two sample t-test, Chi-square Test. Hypertension and diabetes mellitus was significantly higher in patients of silent lacunar infarctions. Body mass index (BMI), waist-hip ratio (WHR), body fat percentage, obesity ratio, metabolic syndrome were higher significantly in patients of silent lacunar infarctions than normal controls. Although statistically insignificant, waist circumference showed relatively higher in patients of silent lacunar infarction. This result emphasizes the importance of managing that hypertension, diabetes, body mass index (BMI), waist-hip ratio (WHR), body fat percentage, obesity ratio, metabolic syndrome in silent lacunar infarction.