• Title/Summary/Keyword: Paired T-Test

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Changes in Stress Hormone, Lymphocytes, and Neutrophils Related to Examination and Social Support in University Students (시험과 사회적 지지에 따른 대학생의 스트레스 호르몬, 림프구 및 호중구의 변화)

  • Kim, Joo-Hyun;Chae, Young-Ran
    • Korean Journal of Adult Nursing
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    • v.22 no.1
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    • pp.11-18
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    • 2010
  • Purpose: The purpose of the study was to identify levels of anxiety, stress hormone, lymphocytes, and neutrophils of the nursing students before an examination and to examine effects of social support on those variables related to taking examinations. Methods: Thirty eight healthy nursing students participated. They completed the questionnaire including state anxiety, test anxiety (VAS scale) and social support two weeks before the exam and again just before the exam. Simultaneously, a venous sample for ACTH, cortisol, lymphocytes & neutrophils count was drawn by a trained nurse. Descriptive statistics, paired t-test, student t-test, and Pearson's correlation with SPSS/WIN 14.0 were used to analyze the data. Results: Test anxiety scores and cortisol level on the exam day showed a significant increment compared with those on the non-exam day. The participants with higher levels of total social support scores showed significantly lower state anxiety on the exam day than those with lower levels of total social support scores. Conclusion: These data indicate a possible alteration in cortisol responsiveness to academic stress in nursing students. Social support would play an important role in modulation of academic stress.

Effects of gum elastic bougie in intubation with difficult airway (마네킹을 이용한 어려운 기도에서 부지 기관 내 삽관의 효과)

  • Shim, Gyu-Sik;Bang, Sung-Hwan;Ahn, Hee-Jeong
    • The Korean Journal of Emergency Medical Services
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    • v.24 no.2
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    • pp.123-131
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    • 2020
  • Purpose: This study aimed to find out the effectiveness of gum elastic bougies for intubation in comparison to stylet according to airway type using a manikin. Methods: The study subjects were 52 paramedic students who intubated using a Macintosh laryngoscope and compared stylet and gum elastic bougie use in a 7.5 mmID endotracheal tube, on a manikin with either normal or difficult airway. Difficult airway was made Philadelphia neck collar. Collected data included intubation time, accuracy and ease of intubation, later analyzed by frequency analysis, descriptive analysis, independent t-test, chi square test, paired t-test, and McNemar test using SPSS Statistics 18.0. Results: There was a significant difference in intubation time according to intubation device and airway type (p=.000). There was no significant difference in accuracy of intubation according to intubation device or airway type (normal airway p=1.000, difficult airway p=.052). There was a significant difference in ease of intubation scale according to intubation device and airway type (p=.000, p=.000). Conclusion: Based on the speed and ease of intubation, gum elastic bougie is recommended for intubation in patients with difficult airways such as those with cervical injury.

Development and Verification of the Effect of Health Lifestyle Education Program for Cancer Prevention in Late School-aged Children (학령기 후기 아동의 암 예방 건강생활 교육프로그램 개발 및 효과검증)

  • Cho, Mi-Hye;Kwon, In-Soo
    • Child Health Nursing Research
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    • v.18 no.4
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    • pp.192-200
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    • 2012
  • Purpose: This study was done to develop and test the effectiveness in late school-aged children of a healthy lifestyle education program for cancer prevention. Methods: Participants were 26 students in the sixth grade of N elementary school in J City (experimental group) and 25 students in the sixth grade of D elementary school with same educational conditions (control group). The research design was a nonequivalent control group pretest-posttest design. Data collection and execution of the study were carried out from March 10 to May 19, 2011. For the experimental treatment, 7 weekly sessions of the healthy lifestyle education program for cancer prevention were given by the researcher. Posttest was done immediately following the conclusion of the program and 4 weeks later. Frequencies, percentages, ${\chi}^2$-test, t-test, repeated measures ANOVA and paired t-test with SPSS WIN 18.0 were used to analyze the data. Results: Perceived barriers, perceived self-efficacy, activity related effect and family support significantly influenced cancer prevention knowledge and increases in healthy life styles. Conclusion: Results indicate that, as this program for cancer prevention was effective in increasing healthy lifestyle practices in these children, there is a need to further develop, test and implement programs in all schools.

Effects of '5&6 Smoking Cessation Program' and 5-day Smoking Cessation Program' on adolescents' smoking behavior (5&6 금연프로그램과 5일 교실 금연프로그램의 청소년 금연효과)

  • Lim, Eun-Sun
    • Korean Journal of Health Education and Promotion
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    • v.27 no.2
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    • pp.95-108
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    • 2010
  • Objectives: The Purpose was to investigate the effects of the '5&6 smoking cessation program' and '5 days smoking cessation program' on the high school student's perception, urine cotinine, and smoking behaviors. Methods: This study was designed using nonequivalent control group pretest-posttest. The '5&6 smoking cessation program' was applied to the experimental group 1(28 students). The '5 days smoking cessation program' was applied to the experimental group 2(19 students). Control group was 53 students. Data was analyzed using descriptive statistics, $X^2$-test, Fisher's exact test, Independent-sample t-test, Paired t-test, ANOVA, Wilcoxon signed ranks test, Cronbach's coefficient alpha. Results: The '5&6 program' was significantly increased on smoking self-efficacy, stage of smoking cessation behavior change, Cons. for smoking and significantly decreased on daily smoking amount, urine cotinine level than control group. The '5 days program' was significantly decreased on urine cotinine level and Pros. for smoking than control group. The '5&6 program' was significantly increased on stage of smoking cessation behavior change than '5 days program'. Conclusion: This study showed that the '5&6 program and the '5 days program' are effective in adolescent's smoking cessation behaviors.

Effect of Balance Exercise using a Combination of Isotonics for Proprioceptive Neuromuscular Facilitation on Balance and Walking Ability in Patients with Hemiplegia Due to Stroke

  • Kim, Beomryong;Kang, Taewoo
    • Physical Therapy Rehabilitation Science
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    • v.10 no.4
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    • pp.470-478
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    • 2021
  • Objective: This study aimed to determine the effect of proprioceptive neuromuscular facilitation (PNF) balance exercise on the ability to balance and walk in patients with hemiplegia caused by stroke. Design: A randomized controlled trial Methods: Following baseline measurements, patients (n=24) with hemiplegia caused by stroke were randomized into two groups: the PNF balance group (n=12) that received PNF balance exercise and the balance group (n=12) that received general balance exercise. Each group joined the intervention for 30 minutes, 5 times per week for 6 weeks. Both groups performed the Timed Up and Go test (TUG) and Berg Balance Scale (BBS) for balance, as well as the 10-meter walking test (10MWT) and 6-minute walk test (6MWT) for walking. The data were collected both before and after the intervention. The paired t-test was used to compare the post-intervention changes compared with pre-intervention data. An independent t-test was used to analyze the differences in the dependent variables between the two groups. Results: After the 6-week intervention, both groups showed significant improvements in balance (TUG, BBS) and walking (10MWT, 6MWT) parameters (p<0.05). The patients in the PNF balance group showed greater improvements in balance (TUG, BBS) and walking (10MWT, 6MWT) than those in the balance group (p<0.05). Conclusions: PNF balance exercise shows improvements in balance and walking parameters in patients with hemiplegia caused by stroke.

The Effects of a Support Program for Family Caregivers of Elderly with Dementia on Empowerment and Attitudes toward Dementia (치매노인 가족 지지프로그램이 치매가족의 임파워먼트와 치매태도에 미치는 효과)

  • Kim, So-Yoon;Jeong, Seonghee
    • The Journal of Korean Academic Society of Nursing Education
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    • v.25 no.1
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    • pp.103-114
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    • 2019
  • Purpose: This research was conducted to identify the effects of providing support programs to families of elderly with dementia on family empowerment and attitudes toward dementia. Methods: A nonequivalent control group pre- and post-test design was used. Participants were 49 family caregivers, experimental (24) and control (25), recruited from families through a dementia support center in Y district. This program implemented Haearim, a support program for family caregivers of demented elders developed by the National Institute of Dementia in 2016. Outcome measures were empowerment and attitudes toward to dementia. Data were analyzed with a ${\chi}^2-test$, independent t-test, Fisher's exact probability test, paired t-test, and repeated measures ANOVA with SPSS/PC version 20.0. Results: Family empowerment (F=6.84, p=.002) and family caregivers' attitudes (F=16.48, p<.001) toward dementia in the experimental group improved significantly more than that of the control group after intervention. Conclusion: Results indicate that support programs for families of elderly with dementia are effective in positively changing empowerment and attitudes toward dementia among family caregivers.

The Effects of Pelvic Floor Stabilization exercise on Pain, Function, Psychosocial, EMG Activity on the Lower Back Pain with Postpartum Women (골반 안정화운동이 산후 요통 여성에게 통증, 기능장애, 심리사회적수준, 근활성도에 미치는 영향)

  • Lee, Min-ji;Kwon, O-kook;Song, Hyun-seung
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.24 no.2
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    • pp.17-27
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    • 2018
  • Background: This study investigated the effects of pelvic floor stabilization exercise of pain, disfunction, psychosocial, electromyography (EMG) activity on the lower back pain with postpartum. Methods: The study included 20 postpartum women who were randomly assigned to a sling exercise group (SEG, n=10) or a general physical therapy group (GPTG, n=10). Outcomes were assessed using to lower back pain with postpartum the quadruple visual analogue scale (QVAS), the Korean version of the Oswestry disability index (KODI), the fear avoidance belief questionnaire (FABQ), the inventory of functional status after childbirth (IFSAC), the edinburgh postnatal depression scale-Korean (EPDS-K), and trunk muscle activity before and after a 4-week exercise intervention. Statistical analysis were performed using a mean, standard deviation, crosstab test, paired t-test, independent t-test. Kolmogorove-Smirnov test was used for test of normality. Results: Compared to the GPTG, the SEG showed significant improvement in the QVAS, KODI, FABQ, IFSAC, and EPDK-K scores (p<.05) after 4 weeks. Conclusion: Postpartum pelvic strengthening exercise proved to have a positive effect.

Effect of Proprioceptive Neuromuscular Facilitation Stretching on Pain, Hip Joint Range of Motion, and Functional Disability in Patients with Chronic Low Back Pain

  • Kim, Beomryong;Kang, Taewoo;Kim, Dahee
    • Physical Therapy Rehabilitation Science
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    • v.10 no.2
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    • pp.225-234
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    • 2021
  • Objective: We aimed to identify the effects of proprioceptive neuromuscular facilitation (PNF) stretching on pain, hip range of motion, and functional disability in patients with chronic low back pain. Design: Randomized controlled trial Methods: In total, 45 patients with chronic low back pain were randomly divided into a conventional stretching group (n=22) and a PNF stretching group (n=23). Both interventions were performed three times per week for 6 weeks. Assessments were made using the visual analog scale, Flexion-Abduction-External Rotation test, modified Thomas test, prone hip extension test, and Oswestry disability index before and after the 6-week intervention period. We conducted a paired t-test to compare the within-group findings before and after the intervention. An independent t-test was used to compare the between-group differences. The statistical significance level was set at α=0.05, for all variables. Results: Both groups showed significant improvements in pain, hip range of motion, and functional disability after the intervention (p<0.05). A significant difference was observed in pain, hip range of motion, and functional disability in patients belonging to the PNF stretching group (p<0.05). Conclusions: This study provides evidence that the application of PNF stretching can effectively reduce pain and improve hip range of motion and functional disability in patients with chronic low back pain.

Psychophysiological Characteristics of Chronic Pain Patients Measured by Biofeedback System (바이오피드백을 이용하여 측정한 만성통증 환자의 정신생리적 특징)

  • Lee, Jin-Seong;Kang, Do-Hyung;An, Hyun-Ju;Yoon, Dae-Hyun;Jeong, Do-Un
    • Sleep Medicine and Psychophysiology
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    • v.16 no.2
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    • pp.79-84
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    • 2009
  • Objectives: Chronic pain is one of the most common experiences of humans and a typical psychophysiological disorder. The aim of this study was to measure the psychophysiological responses in chronic pain patients using a biofeedback system, and to compare them with the results from normal healthy subjects. Methods: Forty two patients with chronic pain (17 males and 25 females, average age $44.67{\pm}11.10$ years) and 42 normal healthy controls (17 males and 25 females, average age $45.17{\pm}10.46$ years) participated in this study. Electromyography (EMG), skin conductance (SC), and skin temperature (ST) were recorded using biofeedback system during the 3 phases (baseline, stress, and recovery) of stress reactivity test, and average values of them were calculated. Difference of values between two groups in each corresponding phase was analyzed with independent t-test, and change of values across phases of stress reactivity test was analyzed with paired t-test (all two-tailed, p<0.05). Results: Compared to normal controls, chronic pain patients had higher value of EMG (baseline: $8.10{\pm}5.97{\mu}V$ vs $4.72{\pm}1.52{\mu}V$, t=-3.56, p<0.01; stress: $11.25{\pm}6.89{\mu}V$ vs $8.49{\pm}4.78{\mu}V$, t=-2.13, p<0.05; recovery: $7.12{\pm}3.77{\mu}V$ vs $4.78{\pm}1.59{\mu}V$, t=-3.70, p<0.01) and SC (baseline: $1.06{\pm}1.0{\mu}S$ vs $0.42{\pm}0.29{\mu}S$, t=-4.0. p<0.01; stress: $1.87{\pm}2.05{\mu}S$ vs $1.03{\pm}0.86{\mu}S$, t=-2.47, p<0.05; recovery: $1.74{\pm}1.77{\mu}S$ vs $0.64{\pm}0.59{\mu}S$, t=-3.8, p<0.01) in all the 3 phases. But, skin temperature comparison did not reveal significant differences in all the 3 phases between two groups. Conclusion: Psychophysiological responses of chronic pain patients in stress reactivity test were different from those of normal healthy controls. These results suggest that sympathetic nervous system is more activated in chronic pain patients.

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Effects of Documentary Education on Study Crafting and Nursing Recognition in Nursing Students (다큐멘터리를 활용한 교육이 간호대학생의 학업크래프팅과 간호직 인식에 미치는 효과)

  • Park, Jung Ha
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.8
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    • pp.264-270
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    • 2019
  • The purpose of this study is to examine the change of study crafting and nursing recognition after applying a documentary form of education to nursing students, and also to confirm the nursing students' satisfaction with the documentary style of education. The subjects of the study were 84 nursing students in their first year in the B area. The data collection period ran from March 11, 2019 to April 15, 2019. The collected data was analyzed using frequencies, percentages, means, standard deviations and paired t-test by employing the SPSS WIN 24.0 computer program. The program consisted of four parts and was operated for 3 hours and 30 minutes, and three domestic documentaries were applied. The study crafting of nursing students increased after the education but there was no statistical significance for this. The nursing recognition was significant (t=-4.49, p<.001) In detail, traditional image, social image and nursing prospect were significant (t=-2.13, p=.036; t=-5.09, p<.001; t=-4.17, p=<.001). Satisfaction with the use of documentaries averaged 4.54 points, as detailed items, the satisfaction with the learning method was 4.54, the satisfaction with the contents of the education was 4.62 points, the benefit was 4.56, the interest was 4.44 and the interest induction was 4.55 points. This study showed that documentaries could be used as a teaching and learning method because the documentaries had a positive effect on nursing students' recognition of nursing and satisfaction of education.