• 제목/요약/키워드: difference in difference(DID)

검색결과 6,144건 처리시간 0.038초

Effectiveness of Nutrition Education in Improving Maternal Knowledge and Attitudes towards Complementary Feeding Practices: A cluster-randomized controlled trial in Ondo State, Nigeria

  • Akinrinmade, Remilekun;NJOGU, Eunice;OGADA, Irene Awuor;KESHINRO, Olufunke Oluremi
    • 식품보건융합연구
    • /
    • 제5권4호
    • /
    • pp.1-10
    • /
    • 2019
  • Significant low knowledge and poor attitudes on complementary feeding undermine the practices. This study was a cluster randomized controlled trial in which 284 study participants were assigned into two groups. One intervention group and a control group in a ratio of 1:1. Nutrition education on complementary feeding was carried out among the caregivers in the intervention group but the caregivers in the control group were not educated. To determine complementary feeding knowledge and attitudes, data was collected from caregiver at baseline, midline and at endline using researcher-administered questionnaires. Quantitative data were analyzed using SPSS version 22.0. From the analysis, there was a significant difference in complementary feeding knowledge of the caregivers after the intervention. The baseline difference was -0.06, the midline difference was 3.85 the endline difference was 4.00 and the DID of the baseline and endline was 4.06 which was significant at p=0.001. There was a significant difference in the attitude of the caregivers towards complementary feeding at baseline (-0.14), midline (2.09), endline (3.82) and the DID of baseline and endline was 3.96 which was significant at p=0.001. The intervention improved the caregivers' knowledge on complementary feeding and it improved the attitudes of the caregivers towards adequate complementary feeding.

요가수련전후 한발서기자세의 좌우대칭력 평가 (Evaluation for Symmetry Ability of One Leg Standing Pose before and after Yoga Training)

  • 유실
    • 한국운동역학회지
    • /
    • 제24권4호
    • /
    • pp.391-397
    • /
    • 2014
  • The purpose of this work is to biomechanically study the effect of the one leg standing pose in yoga.. The work have been done through the evaluation for the left and right symmetry ability of one leg standing pose in the before and after yoga training for the 14 female yoga subject group (height: $164.3{\pm}4.4cm$, mass: $53.4{\pm}6.4kg$, year: $20.0{\pm}0.49yrs$) participated in this experiment. The motions of one leg standing pose were captured with Vicon system and the parameters were calculated with Visual-3D and Ground reaction force system. The results were as followed; - Front and backward COPsd did not show the significant difference, compared the before training with the after. - Left and right COPsd showed the significant difference (p<0.05), compared the before training with the after. - COP distance showed the significant difference (p<0.01), compared the before training with the after. - The asymmetry index of front and backward COPsd did not show the significant difference, compared the before training with the after. - The asymmetry index of left and right COPsd did not show the significant difference, compared the before training with the after. - The asymmetry index of COP distance showed the significant difference (p<0.01), compared the before training with the after. Therefore, the yoga training demonstrated the stable improvement in the one leg standing pose of inferior feet and the positive effect to the left and right symmetry ability.

Effects of Self Exercise Program on Leg Length and Balance in Subjects with Leg-Length Discrepancy

  • Shin, Hyungsoo;Kim, Hyunsung
    • 국제물리치료학회지
    • /
    • 제11권4호
    • /
    • pp.2197-2202
    • /
    • 2020
  • Background: If there is a difference in leg length, the center of gravity shifts unilaterally toward the short leg, causing loss of balance and secondary postural imbalance, trunk muscle tone changes, gait abnormalities and pelvic imbalance. Objectives: To investigate effects of self exercise program on leg length, balance in adults with leg-length discrepancy. Design: Single blind randomized controlled trial. Methods: Twenty-eight participants were selected and divided into resistance exercise, flexibility exercise, and core exercise. Each exercise was performed for 40 minutes, 3 times a week for 6 weeks. Leg length and balance before and after exercise were measured and analyzed. Results: Following the interventions, resistance exercise group showed significant improvement in balance, but leg length difference did not show significant results. Flexibility exercise group showed significant improvement in leg length difference, but balance did not show significant results. Core exercise group showed significant improvement in leg length difference and balance. There was no significant difference in the comparison between the three groups. Conclusion: This study suggests that customized exercise according to the patient's level is beneficial to the patients.

대학생의 생활체육 참가가 자아존중감에 미치는 영향 (The Influence that Sport For All Participation has Self-esteem of University Students)

  • 송강영
    • 한국콘텐츠학회:학술대회논문집
    • /
    • 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
    • /
    • pp.117-119
    • /
    • 2006
  • 본 연구는 생활체육 참가가 대학생의 자아존중감에 미치는 영향을 규명하는데 그 목적이 있다. 본 연구의 모집단은 부산소재 4년제 대학 재학생 총 300명을 표집하였다. 신뢰성이 없다고 판단되는 자료 4부를 제외한 296부의 설문지를 사용하였다. 본 연구의 독립변인은 참가 빈도, 기간, 강도이며 자아존중감을 종속변인으로 설정하였다. 종속변인인 자아존중감 측정 설문도구는 백혜원(1993)의 표준화 척도이다. 수집된 자료를 분석하기 위하여 사용한 통계분석기법은 일원변량분석이었다. 이와 같은 연구방법 및 절차를 통하여 다음과 같은 결론을 도출하였다. 첫째, 대학생의 생활체육참가빈도는 자아존중감에 영향을 미친다. 둘째, 대학생의 생활체육참가 기간은 자아존중감에 영향을 미친다. 셋째, 대학생의 생활체육참가강도는 자아존중감에 영향을 미친다.

  • PDF

보육시설내 성별에 따른 영아와 교사 및 또래간의 사회적 상호작용 (The sex difference in infants' verbal and nonverbal interactions with their teacher and peers)

  • 이순형;김정연
    • 아동학회지
    • /
    • 제18권1호
    • /
    • pp.23-38
    • /
    • 1997
  • This study investigated the difference between infant verbal and nonverbal interactions with a partner (teacher or peer). The subjects were 20 two-year-old infants 00 boys and 10 girls, mean age 31.3 months). Verbal and nonverbal interactions were videotaped during one hour of indoor free play per child in the Center. In verbal interaction, (1) boys spoke to themselves more than girls did, and (2) girls gave orders (imperatives, requests, and prohibitions) to peers and teachers more than boys did. In non-verbal interactions, (1) girls nodded to teachers more than boys did, (2) boys came closer to peers more than girls did, and (3) girls refused by gestures to peers more than boys did. In conclusion, the majority of the boys could be classified as peer-oriented and physically active in their interactions.

  • PDF

측모 두부 방사선사진과 컴퓨터 영상사진 (Dolphin Imaging System)의 계측치 에 관한 비교 (COMPARISONS OF MEASUREMENTS OBTAINED FROM LATERAL CEPHALOMETRIC RADIOGRAPHS AND DIGIGRAPHS OF DOLPHIN IMAGING SYSTEM)

  • 박해준;박영철
    • 대한치과교정학회지
    • /
    • 제24권3호
    • /
    • pp.521-534
    • /
    • 1994
  • The purpose of this study was to compare the differences in measurements between cephalometric radiographs and digigraphs of Dolphin Imaging System. 26 Korean adult male and 24 adult female with normal occlusion were selected. For each subject lateral cephalogram was taken. Digitizing with Digigraph Work Station of Dolphin in System. was performed as well. 50 tracings and 50 digigraphs were analyzed with Yonsei, Ricketts, Burstone analyses. The comparable measurements between tracing group and digigraph group were statistically analyzed. The results were as follows: 1. 13 of 64 comparable measurements did not show any statistically significant difference (P>0.05) between tracing group and digigraph group. 2. Three of the measurements with FH plane as a reference plane did not show any statistically insignificant difference. All measurement with SN plane as a reference plane showed statistically significant difference(p<0.05). 3. The measurements which showhed no statistically significant difference were mostly short distance linear measurements while most of the angular measurements showed statistically significant difference(p<0.05).

  • PDF

Effects of Difference Age and Information Searching Level on Attitudes toward Innovative Product

  • Sinae Lee;Dongwon Min
    • Asia Marketing Journal
    • /
    • 제25권1호
    • /
    • pp.15-25
    • /
    • 2023
  • Innovation is no longer the purview of high-tech industries; it is blossoming in the home appliances and cosmetics sectors. However, consumers' anxiety about the risk of new products prevents them from reaping the benefits of innovation. This anxiety is driven by customer's lack of prior information on new products. This study examines how difference age between the chronological age of consumers and their cognitive age affects consumers' willingness to search for information on innovative products, leading to reduced new-product anxiety. According to a survey of participants who actually bought an innovative product, we found that participants searched for more information when they perceived themselves to be younger than their chronological age (a high difference age). Where participants did not proactively search for information (due to a low difference age), they could be encouraged to do this through marketing campaigns. Together, these findings expand our understanding of how consumers' difference age can be leveraged in digital marketing to enable companies to more strategically reach consumers when planning or launching innovative products.

A Study on the Improvement of Visual Acuity and Refractive Power According to General Characteristics of Cataract Surgery Patients

  • Cho, Seon Ahr;Lee, Seong Jae
    • International Journal of Advanced Culture Technology
    • /
    • 제6권4호
    • /
    • pp.71-79
    • /
    • 2018
  • For 299 patients who had undergone cataract surgeries we investigated the difference in visual acuity and refractive power before and after cataract surgery and the clinical change of the visual acuity and the refractive power according to age, gender, hospital visit time and specific medical history. We found the factors affecting preoperative and postoperative outcomes of the cataract patients in metropolitan hospitals by input, process, and outcome and analyzed medical characteristics and patient characteristics as the input variables. T-test and ANOVA have been performed for statistical analysis of functional status, and general status and the technical characteristic as the process variable and the outcome variable of diagnosis. Visual acuity improved significantly in patients who had undergone cataract surgery. However, the change in refractive power did not show a statistically significant difference but only a slight difference. The improvement of male patients was greater than that of female patients. The difference in age was more effective in patients under 50 years old and the effect of cataract surgery was relatively high in patients without the presence of specific medical history. Cataract surgery did not seem to help all of the patients, but it is more effective in improving visual acuity and refractive power. We conclude that simultaneous cataract surgery in both eyes is reasonable in order to have at least the better effect.

태권도 수련이 초등학생 하지근력에 미치는 영향 (The Effects of Taekwondo Traing Causing Leg-muscular Strength for Elementary School Children)

  • 윤영조;정재민;김태호;배성수
    • 대한물리의학회지
    • /
    • 제4권3호
    • /
    • pp.175-182
    • /
    • 2009
  • Purpose:The purpose of this study is to investigate the effects of Taekwondo training causing leg-muscular strength for elementary school children. Methods:The subjects were Taekwondo group (n=20) and non-Taekwondo group (n=20) from 5-6 graders of elementary school. The Tkd group exercised Taekwondo and the non-Taekwondo group exercised free gymnastics. The subjects were measured 3 times(pre, mid and after)during the 8weeks program. The leg muscular strength peak torque and average power were measured. And the extension-flection of angular speed 60 deg/sec and 180 deg/sec was measured. Results:The results of this study can be summarized as follows: 1. Compared with the Tkd group, the non-Tkd group showed no significant difference in tests statistically in case of right-left of pre-4weeks. The leg muscle's peak torque did not show significant difference in the extension angular 60 deg/sec(p>.05). 2. The score of flection angular speed 60deg/sec was not different in tests leg strength of right-left to pre-4weeks(p<.05), but the muscle was increased according to the amount of time spent in case of the 4-8weeks. 3. Compared with the Tkd group, the non-Tkd group showed no significant difference in tests statistically in case of right-left of pre-4weeks. The leg muscle's peak torque did not show significant difference in the extension angular 180deg/sec(p>.05). The right leg muscular strength was increased in case of the 4-8weeks. The left leg showed no difference. 4. Leg muscular strength was increased in the case of the pre-4weeks in the right of flection angular speed 180deg/sec. The left did not show difference. The right leg muscle in case of the 4-8weeks showed no difference. The left showed significant difference. Conclusion:Taekwondo training is effective for leg-muscular strengthing for elementary school children.

  • PDF

산정특례제도가 미충족 의료경험에 미치는 영향: 2·4차 한국의료패널자료를 이용하여 (The Relief Effect of Copayment Decreasing Policy on Unmet Needs in Targeted Diseases)

  • 최재우;김재현;박은철
    • 보건행정학회지
    • /
    • 제24권1호
    • /
    • pp.24-34
    • /
    • 2014
  • Background: Bankrupted households have recently been increased due to excessive medical expenditure in Korea. They have not been protected from economic risk when household's member has severe diseases that need a lot of money for treatment. Purpose of this study examines policy effect by comparing unmet needs' change of policy object households and non-object groups. Methods: We used Korea Health panel 2nd 4th data collected by Korea Institute for Health and Social Affairs and National Health Insurance Service. Analysis subjects were 381 households (pre-policy) and 393 households (post-policy) that had cancer and cardiovascular and cerebrovascular diseases. Since it was major concern that estimates benefit strengthening policy started by certain time, we setup comparing households which had diabetes, hypertension disease. Comparison subjects were 393,247 households, respectively and we evaluated policy effect using difference in difference (DID) model. Results: Although unmet needs of policy object households were higher than non-object groups, policy execution variable affected negative direction. But interaction-term which shows pure effect of policy was not statistically significant. We utilized multi-DID model to examine factors affecting unmet needs causes. Copayment assistance policy did not significantly affect households that responded to 'economic reason,' and 'no have time to visit' for unmet needs causes. Conclusion: The second copayment assistance policy did not significantly give positive effect to beneficiary households than non-beneficiary groups. When we consider that primary purpose of public insurance guarantee high medical expenditure occurred by unexpected events, it needs to deliberate on switch of benefit strengthening policy that can assist vulnerable people. Also, we suggest that government forward a policy covering non-reimbursable medical expenses as well as switch of benefit strengthening direction because benefit policy do not affect non-covered medical cost which accounts for quarter of total health expenditure.