• Title/Summary/Keyword: T-test analysis

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Mothers' Perception on Antibiotic Use for Their Children Under Six Years Old (6세 이하 아동 어머니의 항생제 사용인식)

  • Kim, Tae Im;Kim, Kyung Wha;Kim, Mi-Jong
    • Journal of Home Health Care Nursing
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    • v.26 no.1
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    • pp.51-63
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    • 2019
  • Purpose: The objective of this study was to investigate mothers' perception of antibiotic use for their children. Methods: A cross-sectional survey was conducted of a convenient sample of 210 mothers who visited the two pediatric hospitals in D city. Descriptive statistics, t-test, analysis of variance, Kruskal-Wallis test, Mann-Whitney U test, and Pearson correlation coefficients with SPSS WIN 24.0 were used to analyze the data. Results: The perception of mothers on antibiotic use for their children was relatively low (3.28/5) and showed a statistically significant difference based on the mothers' educational background (${\chi}^2=15.30$, p<.001). About 57-77% of participants discontinued or reduced the dosage of the antibiotics if their children's symptoms were relieved, and about 60% of them perceived that antibiotics treat viral infections. Mothers' adherence to specific doses of antibiotics in their children was positively correlated with their knowledge and beliefs (r=.17, p=.014) and their attitude regarding the use of antibiotics (r=.17, p=.014). Only 1.4% of the participants had educational experience regarding the correct use of antibiotics. Conclusion: Based on the results, it can be concluded that an educational program for mothers should be developed and to verify its effects in order to induce proper use of antibiotics among mothers.

Knowledge, Awareness and Risk of Occurrence of Venous Thromboembolism of Perinatal Women (임산부의 정맥혈전색전증 관련 지식과 인식 및 발생위험도)

  • Kim, Eun Sook;Kim, Hye Young
    • Women's Health Nursing
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    • v.25 no.2
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    • pp.154-168
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    • 2019
  • Purpose: The purpose of this study is to identify knowledge, awareness, and risk of occurrence of venous thromboembolism among pregnant women. Methods: Subjects were 106 pregnant women treated as inpatients and outpatients at a women's health hospital in a metropolitan city February 19-March 22, 2018. Instruments consisted of questionnaires that included knowledge, awareness, and risk of occurrence of venous thromboembolism queries. Collected data were analyzed by t-test, one-way analysis of variance, Mann-Whitney U test and Kruskal-Wallis test. Results: Mean score of subjects' knowledge of venous thromboembolism was 4.47 (0-15), mean score of subjects' awareness of venous thromboembolism was 66.98 (25-100), and mean score of subjects' risk factor of venous thromboembolism was 0.98 (0-44). Conclusions: Pregnant women's level of knowledge and awareness of prevention and risk factors on venous thromboembolism, is significantly low. To raise their awareness of risk symptoms and prevent occurrence of the disease, it is essential for nurses as well as medical staffs to: 1) provide an educational program on venous thromboembolism for patients; 2) assess and monitor pregnant women with a risk factor of venous thromboembolism; and 3) implement proper prophylaxis for patients.

Establishment of the design stress intensity value for the plate-type fuel assembly using a tensile test

  • Kim, Hyun-Jung;Tahk, Young-Wook;Jun, Hyunwoo;Kong, Eui-Hyun;Oh, Jae-Yong;Yim, Jeong-Sik
    • Nuclear Engineering and Technology
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    • v.53 no.3
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    • pp.911-919
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    • 2021
  • In this paper, the design stress intensity values for the plate-type fuel assembly for research reactor are presented. Through a tensile test, the material properties of the cladding (aluminum alloy 6061) and structural material (aluminum alloy 6061-T6), in this case the yield and ultimate tensile strengths, Young's modulus and the elongation, are measured with the temperatures. The empirical equations of the material properties with respect to the temperature are presented. The cladding undergoes several heat treatments and hardening processes during the fabrication process. Cladding strengths are reduced compared to those of the raw material during annealing. Up to a temperature of 150 ℃, the strengths of the cladding do not significantly decrease due to the dislocations generated from the cold work. However, over 150 ℃, the mechanical strengths begin to decrease, mainly due to recrystallization, dislocation recovery and precipitate growth. Taking into account the uncertainty of the 95% probability and 95% confidence level, the design stress intensities of the cladding and structural materials are established. The presented design stress intensity values become the basis of the stress design criteria for a safety analysis of plate-type fuels.

The Impact of Monetary Policy on Household Debt in China

  • CANAKCI, Mehmet
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.4
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    • pp.653-663
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    • 2021
  • There has been a massive increase in household debt in China, especially in the last five of years. Learning from past experiences, the country needs careful forecasting that may help to form new policies or make amendments to the existing ones. This research paper aims to highlight the impact of the monetary policy on household debt in China. The study covers the time period from 1996 to 2020 The study employs a cointegration test, Autoregressive Distributed Lag Bound Test (ARDL) approach, a Augmented Dicky Fuller (ADF) and PP test (PMG) and time series data. The findings suggest on a quantitative analysis using a time-series model in which gdp per capita and interest rate has a positive impact on household debt whereas, cpi doesn't have significant impact. In a short-term variables relationship, household debt responds more to an increase in income than in the long-term. Also, the impact of interest rate changes on household debt is lower than income in the short run.The research suggests that there should be some restrictions on household debt and consumer financing provided to citizens and for this, appropriate leverage measures should be taken in order for the central bank to sustain robust macroeconomic conditions.

Effects of Work Environment and Nursing Organizational Culture on Tertiary Hospital Nurses' Turnover Intention (상급종합병원의 업무환경과 간호조직문화가 간호사의 이직의도에 미치는 영향)

  • Jang, Haena;Chang, Hyoung Eun
    • Journal of Korean Critical Care Nursing
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    • v.14 no.1
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    • pp.14-27
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    • 2021
  • Purpose : This study examined the effects of work environment and organizational culture on tertiary hospital nurses' turnover intention. Methods : A cross-sectional design was used, with a convenience sample of 371 hospital nurses from 16 units of three tertiary hospitals in South Korea. Data were collected through a self-report survey conducted during September and October 2016. Data were analyzed using the chi-square test, Fisher's exact test, independent t-test, and binary logistic regression analysis. Results : A total of 43.7% of the participants were identified as having turnover intention within 1 year. Factors related to turnover intention among hospital nurses were age, marital status, and total clinical career. Furthermore, a relationship-oriented organizational culture showed a negative association with turnover intention. Conclusion : These findings suggest it is important to provide appropriate motivational programs and incentives for nurses according to their clinical career to decrease turnover intention. Moreover, establishing a relationship-oriented organizational culture will also help to reduce the turnover intention of tertiary hospital nurses.

Effects of Circadian Rhythm, Daytime Sleepiness, Sleep Quality, Stress Resistance on Eating Attitudes in Nursing Students (간호대학생의 일주기리듬, 주간졸림증, 수면의 질 및 항 스트레스가 섭식태도에 미치는 영향)

  • Weon, Hee Wook;Son, Hae Kyoung;Ko, Sangjin
    • Journal of the Korean Society of School Health
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    • v.34 no.2
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    • pp.107-114
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    • 2021
  • Purpose: The aim of this study was to investigate the factors influencing eating attitudes in female nursing students. Methods: A cross-sectional study was conducted on 121 university students in 2016. Data was collected using self reported questionnaires asking about circadian rhythm (Morningness-Eveningness Questionnaire), daytime sleepiness (Epworth Sleepiness Scale), sleep quality (Pittsburgh Sleep Quality Index), and eating attitudes (Eating Attitudes Test-26). Stress resistance was measured with a brain quotient test. The data were analyzed with a t-test, ANOVA, Pearson's correlation analysis and linear regression using SPSS 22.0. Results: Eating attitudes were associated with daytime sleepiness, sleep quality, and stress resistance of the right hemisphere. Among these, daytime sleepiness and sleep quality had a significant effect on eating attitudes. Conclusion: The results of this study suggest that sleep should be taken into account when developing interventions for preventing eating disorders in female nursing students.

Risk Factors for Cardiac Implantable Electronic Device-Related Infections (이식형 심장 모니터링 장치 관련 감염의 위험요인)

  • Park, Jin Yeong;Choi, Hye-Ran
    • Journal of Korean Biological Nursing Science
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    • v.23 no.4
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    • pp.298-307
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    • 2021
  • Purpose: This study aimed to investigate the risk factors for cardiac implantable electronic device (CIED)-related infections within the first post-procedural year after CIED insertion. Methods: This study included 509 adult patients undergoing CIED implantation procedures between January 1, 2011 and December 31, 2015. The data were analyzed by t-test, chi-square test, Fisher's exact test, and logistic regression analysis using SPSS/WIN 23.0. Results: Fifteen infections and 494 non-infections were examined. The CIED-related infection rate was 2.9%; patients with 14 pocket infections and one bacteremia were included in the CIED-related infection. The risk factors of CIED-related infections were the estimated glomerular filtration rate (eGFR) of ≤ 45 mL/min/1.73 m2 (Odds ratio [OR]= 4.03, 95% confidence interval [CI],1.15-14.10) and taking a new oral anticoagulant (NOAC) (OR = 4.50, 95% CI 1.09-18.55). Conclusion: These results identified the CIED infection rate and risk factors of CIED-related infection. It is necessary to consider these risk factors before the CIED implantation procedure and to establish the relevant nursing interventions.

Evaluation of Wear Characteristics on Ti/Cr PVD Coatings of Cold Press Die for the Forming of UHSS (초고장력강판 성형용 냉간 프레스 금형의 Ti/Cr계 PVD코팅에 대한 마모 특성 평가)

  • Heo, J.Y.;Youn, K.T.;Song, J.S.;Kang, I.S.;Yoon, I.C.;Park, C.D.
    • Transactions of Materials Processing
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    • v.31 no.4
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    • pp.186-193
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    • 2022
  • The application of UHSS sheet is being expanded up to 50% to reduce the weight of automobiles and improve safety. However, due to the high strength and low elongation of the ultra-high tensile strength steel sheet, product defects such as spring back and mold defects such as cracks and chippings also occur. In this study, Pin/Ring on Disc and Spiral wear tests were conducted to evaluate the durability of Ti/Cr-coated molds for forming 1.2GPa grade UHSS sheets. Component analysis and thickness were measured for each coating layer, and hardness and adhesion were investigated to determine mechanical properties. Combining the results of various wear tests, it was found that the TiAlN coating had the best wear and sticking resistance.

Nurses' Confidence in Family Nursing and Their Needs for Family Nursing Education: Focusing on the Family of Dying Patients (간호사의 가족간호 자신감과 가족간호 교육요구도: 임종기 환자 가족을 중심으로)

  • Kwon, So-Hi;Kim, Young-Joo
    • Journal of Korean Public Health Nursing
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    • v.35 no.3
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    • pp.356-367
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    • 2021
  • Purpose: This study aimed to identify the confidence and educational needs of clinical nurses in care for the family of dying patients. Methods: The subjects of this study were 218 clinical nurses working at two tertiary general hospitals located in D city, Korea, and the data were collected through online questionnaires. The collected data were analyzed using descriptive statistics, t-test, analysis of variance (ANOVA), Scheffe test and 𝝌2 test using the SPSS WIN 20.0 program. Results: 97.6% of clinical nurses recognized the need for family care for dying patients, but 76.7% had never received any education on family care for dying patients. The average score of dying patients' confidence in family care was 3.09. About 90% of clinical nurses were willing to participate in family nursing education for dying patients. The group with more than 5 years of clinical experience was significantly higher than the group with less than 5 years of clinical experience. Conclusion: This study recognized the necessity of family nursing for dying patients highly. It is necessary to develop and apply an educational program based on the education topic that recognizes the need highly.

Factors Influencing the COVID-19 Vaccination Intentions in Parents for Their Children Aged 5~11: Korea, April 2022 (5~11세 자녀에 대한 부모의 COVID-19 백신접종 의도 영향요인: 한국, 2022년 4월 시점)

  • Choi, In Suk;Kim, Eun A
    • Journal of Korean Academy of Nursing
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    • v.53 no.2
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    • pp.208-211
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    • 2023
  • Purpose: This study aimed to investigate COVID-19 vaccination intentions in Korean parents for their children aged 5 to 11 years and the factors influencing them. Methods: A cross-sectional online survey of 363 parents of children aged 5 to 11 years was conducted in Korea in April 2022. Data were analyzed using independent t-test, χ2 -test, Fisher's exact test, and hierarchical logistic regression analysis using SPSS/WIN 26.0 and MedCalc software version 20.113. Results: Of 363 Korean parents with children aged 5 to 11, 42.4% intended to vaccinate their children. Significant factors influencing vaccination intention were the second or third birth order of children (OR = 3.45, 95% CI = 1.45~8.21), vaccine hesitancy-confidence (OR = 2.00, 95% CI = 1.51~2.65), vaccine hesitancy-collective responsibility (OR = 1.57, 95% CI: 1.10~2.25), and COVID-19 anxiety-avoidance (OR = 1.55, 95% CI = 1.13~2.11). Conclusion: Findings suggest that COVID-19 vaccine campaigns based on reliable information and evidence from health authorities are needed to increase COVID-19 vaccination. Well-designed health communications for the target population may help to increase parental vaccine acceptance.