• Title/Summary/Keyword: Quality indicator

Search Result 955, Processing Time 0.027 seconds

The Current State of and Barriers to Quality Measurement, and Quality Managers' Reported Evaluation on Quality Indicators in Korea (국내 질 향상부서 중심의 질 지표 측정 현황, 장애요인과 평가)

  • Hwang Jee-In
    • Health Policy and Management
    • /
    • v.15 no.4
    • /
    • pp.26-45
    • /
    • 2005
  • The purposes of this study were to Identify the .level of measurement on quality Indicators and evaluate the existing indicators in order to determine the priority of quality indicators' application in Korean general hospitals. A survey was conducted using a questionnaire. The subjects were quality managers working at general hospital having over 300 beds. The criteria were relevance, reliability, precision, impact, application, and preference to evaluate quality indicators. According to these six criteria, each indicator was evaluated on a five point scale(5: excellent, 1: poor). The response rate was $40.4\%$. The hospitals have monitored the average of 3.8 indicators(median 4). The indicators such as return to operating room, unplanned readmission, cancellation of booked operations, death, hospital infection, cesarean section rate, volume per disease or procedure, readmission, re-operation, blood transfusion, and post-procedural complications were frequently measured. The top ten quality indicators in the evaluation by its relevance, validity, reliability, impact, preference and application were decubitus ulcer, clean wound infection, fall, unplanned return to operation room, transfusion reactions, foreign body left In during procedure, unplanned readmission, wound infection after contaminated surgery, postoperative hemorrhage/hematoma, and cesarean section rate in order. The high priority quality indicators frequently measured could be used as primary national indicators. Standardized guidelines about monitoring indicators and the utilization will preliminarily be needed to compare and reuse the data for various purposes and improve the quality of care continuously.

Development of Customer Satisfaction Quality Indicator Considering Producer's Specification Limits (생산자규격을 고려한 소비자만족품질지표의 개발)

  • Kim, Dong-Hyuk;Chung, Young-Bae
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.41 no.4
    • /
    • pp.50-58
    • /
    • 2018
  • Process Capability ($C_{pk}$) is a representative measure of how well the producer manages dispersion and bias for the specifications needed by the consumer. This is expressed as a ratio of 6 times the natural tolerance to the specification. As the producer manages the dispersion small, the capacity index becomes higher. And it is classified into 5 grades according to the degree of management. It is a measure of the quality of processes used in most industrial fields. However, $C_{pk}$ is calculated by only reflecting the mean and dispersion of the process, there is a disadvantage that it can not give information about the economic loss caused by the inconsistency of the process with the target value. Overcoming these drawbacks, process capability indexes reflecting various types of loss functions such as $C_{pm}$, $C^+_{pm}$ and $C_{pl}$ have been developed. However, all of these previous studies have applied the limit to the consumer specification, which is based on the traditional and passive quality perception that the quality characteristic should exist within the limits of the consumer specification. In this study, we will develop 'Customer Satisfaction Quality Indicator (CSQI)' which is a quantitative indicator that can be fully evaluated when the manufacturer's specification limit, which is an aggressive quality strategy, is applied. This is expected to be useful decision information for both producers and consumers.

A Study on Indicator Bacteria for Water Quality Management of Urban Artificial Lakes (도심지역 인공호의 수질관리를 위한 지표세균에 관한 연구)

  • Chu, Duk-Sung;Kwon, Hyuk-Ku;Lee, Sang-Eun;Lee, Jang-Hoon
    • Journal of Environmental Health Sciences
    • /
    • v.33 no.4
    • /
    • pp.299-305
    • /
    • 2007
  • Distribution of fecal pollution indicator bacteria and environmental parameter were investigated of urban artificial lakes. An average concentration of temperature, pH, SS, DO, $COD_{Mn}$, T-P, T-N, Turbidity, Chl-a were $21.5^{\circ}C$, 8.07, 116.70 mg/l, 8.66 mg/l, 2.24 mg/1, 0.52 mg/l, 1.71mg/l, 80.54 NTU, and 52.12 mg/l respectively. From the results of bivariate correlation analysis, fecal contamination indicator bacteria were found to be mutually correlated. And turbidity and suspended solid were correlated. From the results of principal component analysis, four factors were extracted. And four factors of variance explained up to 81.5 percentage. Factor 1 was pollution pattern by fecal contamination, factor 2 was physical pollution pattern by pollution source, factor 3 was natural pollution by precipitation, and factor 4 was artificial pollution pattern by organism.

The Study on Evaluation Indicators and Validity of Major Courses - Focusing on the Case of the H University (전공교육과정 점검 지표 개발 및 타당화 - H대학교 사례를 중심으로)

  • Choi, Yoon Hee;Yun, Rin
    • Journal of Engineering Education Research
    • /
    • v.24 no.3
    • /
    • pp.32-41
    • /
    • 2021
  • The purpose of this study is to develop indicators to establishing the education system, focusing the curriculum in each department of H University for quality management of the curriculum. The indicator was developed based on previous studies and cases studies of other universities, and the validation of them was confirmed by the Delphi survey method. The Delphi surveys were conducted by two times, and 16 and 15 people participated for the first and second survey, respectively. We derived the following major results through developing the indicator. First, in order to conduct an education inspection of major courses, , , , , and are required. Second, the checking factors should be evaluated based on the contents in each stage, and can be regarded as a core activity in the curriculum. Accordingly, the checking factors becomes the basis for the establishment of the indicator to establishing the education system, and the indicator can be an expression method that represents the basis data for determining the factors to be evaluated.

Development and Application of Benthic Macroinvertebrates Genus Index for Biological Assessment on Korean Stream Environment (한국의 하천환경 평가를 위한 저서동물 속범주지수(BMGI)의 개발 및 적용)

  • Dongsoo Kong;Minjeong Yeo
    • Journal of Korean Society on Water Environment
    • /
    • v.39 no.4
    • /
    • pp.269-287
    • /
    • 2023
  • The genus-level biotic index of benthic macroinvertebrates (Benthic Macroinvertebrates Genus Index, BMGI) was developed and applicated based on the data collected from 13,347 sampling units of 814 sites from 2010 to 2021 in Korea. Tolerant values of 274 indicator taxa were established by analyzing the relationship between the relative frequency and abundance of indicator taxa and the water quality index considering biochemical oxygen demand (BOD5), total suspended solids (TSS), and total phosphorus (T-P). BMGI showed a slightly higher correlation with water quality than the species-level biotic index (Benthic Macroinvertebrates Index, BMI) that was developed and applied in Korea. Although the BMGI does not contain species-level information, the reason why BMGI shows higher applicability than BMI seems to be due to the increase in the number of indicator taxa and the decrease in the misidentification of immature aquatic insects. The coefficient of determination in multiple regression with BOD5, TSS, and TP for BMGI was 0.62 in the long-term averaged data of 814 sites, and the standardized coefficient of BOD5 was -0.46, TSS was -0.17 and T-P was -0.21, respectively. As a result of the evaluation by BMGI, of the 814 sites, 38% were in good, 25% in fair, and 37% in poor condition.

Distribution of Indicator Bacteria in Seawater off the Coast of Jeju Island (제주도 연안 해역의 오염지표세균의 분포)

  • Roh, Heyong Jin;Lim, Yun-Jin;Kim, Ahran;Kim, Nam Eun;Kim, Youngjae;Park, Noh Back;Hwang, Jee-Youn;Kwon, Mun-Gyeong;Kim, Do-Hyung
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.51 no.4
    • /
    • pp.450-455
    • /
    • 2018
  • We examined correlations of the density of fish farms with the distributions of indicator bacteria (Escherichia coli, fecal streptococci) and a bacterial fish pathogen (Streptococcus parauberis) off the coastline of Jeju Island. Seawater samples were collected at four coastal sites on the Island [Aewol (control), Gujwa, Pyoseon and Daejeong] in June, August and October 2016. The indicator bacteria were generally more frequently isolated from samples taken in August when water temperatures and human activities on nearby beaches were highest. Although fish farms were least common at Daejeong, the numbers of isolated fecal indicator bacteria were highest in the seawater and effluent water collected from this site. Hence, fish farms were not likely major contributors of indicator bacteria at Daejeong. We found discrepancies between the isolated bacterial counts and the predicted bacterial copy numbers deduced from our qPCR results, indicating that this pathogen may exist in a viable but non-culturable (VBNC) state in seawater. Thus, livestock wastewater and chemical fertilizer loading off Jeju Island may negatively impact seawater quality more than the effluent released from fish farms does.

PARK Index and S-score Can Be Good Quality Indicators for the Preventable Mortality in a Single Trauma Center

  • Park, Chan Yong;Lee, Kyung Hag;Lee, Na Yun;Kim, Su Ji;Cho, Hyun Min;Lee, Chan Kyu
    • Journal of Trauma and Injury
    • /
    • v.30 no.4
    • /
    • pp.126-130
    • /
    • 2017
  • Purpose: Preventable Trauma Death Rate (PTDR) using Trauma and Injury Severity Score (TRISS) has been most widely used as a quality indicator in South Korea. However, this method has a small number of deaths corresponding to the denominator. Therefore, it is difficult to check the change of quality improvement for annual mortality, and there is a disadvantage that variation is severe. Therefore, we attempted to improve the quality of the mortality evaluation by reducing the variation by applying the PARK Index (preventable major trauma death rate, PMTDR) which can increase the number of denominator significantly. And the Save score (S-score) was also examined as another quality indicator. Methods: In the PARK Index, the denominator is number of all patients who have survival probability (Ps) larger than 0.25. Numerator is the number of deaths among these. The PARK Index includes only patients with ISS >15. The S-score is calculated in the same way as the W-score, but the S-score includes only patients with ISS >15, which is a difference from the W-score. Results: PARK Index decreased annually and was 12.9 (37/287) in 2014, 9.6 (33/343) in 2015, and 7.3 (52/709) in 2016. S-score increased annually and was -0.29 in 2014, 4.21 in 2015, and 8.75 in 2016. Conclusions: PARK Index and S-score improved annually. This shows that both quality indicators are improving year by year. PARK Index (PMTDR) has 9.5-fold increase in denominator overall compared to PTDR by TRISS. The S-score used only ISS >15 patients as a denominator. Therefore, there is an advantage that the numerical value change is larger than the W-score. In addition, S-score is not affected by the ratio of major trauma patients to minor trauma patients.

Evaluation of Survey Data Quality Based on Interviewers' Assessments: An Example from Taiwan's Election and Democratization Study

  • Tsai, Chi-lin;Liu, Tsung-Wei;Chen, Yi-ju
    • Asian Journal for Public Opinion Research
    • /
    • v.7 no.1
    • /
    • pp.57-74
    • /
    • 2019
  • Researchers usually examine the quality of survey data by several conventional measures of reliability and validity. However, those measures are mainly designed to examine the quality of an individual measurement, rather than the quality of a data set as a whole. There is a relative lack of methods for evaluation of the overall data quality. This paper attempts to fill this gap. We propose using interviewers' assessments as one of criteria for evaluating the overall data quality. Interviewers are the ones who literally conduct and thus directly observe interviews. Taiwan's Election and Democratization Studies (TEDS) have required interviewers to assess how trustworthy the responses of each of their interviewees are, and to provide several descriptions about the process and environment of the interviews. We use this information to evaluate the data quality of TEDS surveys and compare it with the results from the conventional test-retest method. The findings are that the interviewer assessment is a fair indicator of the overall reliability of attitudinal questions but not a good indicator when factual questions are examined. Regarding the evaluation of data validity, more data is required to see whether or not interviewers' assessment is informative in terms of data quality.

Applicable Water Quality Indicators for Watershed Management (수질오염총량관리를 위한 관리대상물질)

  • Park, Jae Hong;Oh, Seung Young;Park, Bae Kyoung;Kong, Dong Soo;Rhew, Doug Hee;Jung, Dong Il
    • Journal of Korean Society on Water Environment
    • /
    • v.22 no.6
    • /
    • pp.1004-1013
    • /
    • 2006
  • To effective a watershed management, it is necessary to have one or more quantitative measures that can be used to evaluate the relationship between pollutant sources and their impact on water quality. Such measurable quantities are termed indicators. Once an indicator has been selected, a target value for that indicator must be established that seek to distinguish between the impaired and unimpaired state of the waterbody. Various factors will be considered for the selection of an appropriate watershed management indicator. For example, available data, application, management conditions, cost, etc. This paper lists various factors that should be addressed in choosing a watershed management indicators and investigates applicable indicators during watershed management period.

Application of Iron Oxide as a pH-dependent Indicator for Improving the Nutritional Quality

  • Meng, Xiangpeng;Ryu, Jina;Kim, Bumsik;Ko, Sanghoon
    • Clinical Nutrition Research
    • /
    • v.5 no.3
    • /
    • pp.172-179
    • /
    • 2016
  • Acid food indicators can be used as pH indicators for evaluating the quality and freshness of fermented products during the full course of distribution. Iron oxide particles are hardly suspended in water, but partially or completely agglomerated. The agglomeration degree of the iron oxide particles depends on the pH. The pH-dependent particle agglomeration or dispersion can be useful for monitoring the acidity of food. The zeta potential of iron oxide showed a decreasing trend as the pH increased from 2 to 8, while the point of zero charge (PZC) was observed around at pH 6.0-7.0. These results suggested that the size of the iron oxide particles was affected by the change in pH levels. As a result, the particle sizes of iron oxide were smaller at lower pH than at neutral pH. In addition, agglomeration of the iron oxide particles increased as the pH increased from 2 to 7. In the time-dependent aggregation test, the average particle size was 730.4 nm and 1,340.3 nm at pH 2 and 7, respectively. These properties of iron oxide particles can be used to develop an ideal acid indicator for food pH and to monitor food quality, besides a colorant or nutrient for nutrition enhancement and sensory promotion in food industry.