scholarly journals Estimation of Ethiopia’s immunization coverage – 20 years of discrepancies

2021 ◽  
Vol 21 (S1) ◽  
Author(s):  
Bob Pond ◽  
Abebe Bekele ◽  
Sandra Mounier-Jack ◽  
Habtamu Teklie ◽  
Theodros Getachew
Keyword(s):  
Secondary Analysis ◽  
Immunization Coverage ◽  
Population Based ◽  
Annual Reports ◽  
Estimation Methods ◽  
Demographic And Health Surveys ◽  
Immunization Programme ◽  
National Immunization ◽  
Data Source

Abstract Background Coverage with the third dose of diphtheria-pertussis-tetanus-containing vaccine (DPT3) is a widely used measure of the performance of routine immunization systems. Since 2015, data reported by Ethiopia’s health facilities have suggested DPT3 coverage to be greater than 95%. Yet, Demographic and Health Surveys in 2016 and 2019 found DPT3 coverage to be 53 and 61% respectively for years during this period. This case study reviews the last 20 years of administrative (based on facility data), survey and United Nations (UN) estimates of Ethiopia’s nationwide immunization coverage to document long-standing discrepancies in these statistics. Methods Published estimates were compiled of Ethiopia’s nationwide DPT3 coverage from 1999 to 2018. These estimates come from the Joint Reporting Form submitted annually to WHO and UNICEF, a series of 8 population-based surveys and the annual reports of the WHO/UNICEF Estimates of National Immunization Coverage (WUENIC). Possible reasons for variation in survey findings were explored through secondary analysis of data from the 2012 immunization coverage survey. In addition, selected health officials involved with management of the immunization program were interviewed to obtain their perspectives on the reliability of various methods for estimation of immunization coverage. Findings Comparison of Ethiopia’s estimates for the same year from different sources shows major and persistent discrepancies between administrative, survey and WUENIC estimates. Moreover, the estimates from each of these sources have repeatedly shown erratic year-to-year fluctuations. Those who were interviewed expressed scepticism of Demographic and Health Survey (DHS) statistics. Officials of the national immunization programme have repeatedly shown a tendency to overlook all survey statistics when reporting on programme performance. Conclusions The present case study raises important questions, not only about the estimation methods of national and UN agencies, but about the reliability and comparability of widely trusted coverage surveys. Ethiopia provides an important example of a country where no data source provides a truly robust “gold standard” for estimation of immunization coverage. It is essential to identify and address the reasons for these discrepancies and arrive at a consensus on how to improve the reliability and acceptability of each data source and how best to “triangulate” between them.

scholarly journals Refusal bias in HIV data from the Demographic and Health Surveys: Evaluation, critique and recommendations

2019 ◽  
Vol 29 (3) ◽  
pp. 811-826
Author(s):  
Oyelola A Adegboye ◽  
Tomoki Fujii ◽  
Denis HY Leung
Keyword(s):  
Health Surveys ◽  
Population Based ◽  
Hiv Prevalence ◽  
Estimation Methods ◽  
Demographic And Health Surveys ◽  
Test Results ◽  
Hiv Test ◽  
Prevalence Estimates ◽  
Nationally Representative ◽  
Practical Implications

Non-response is a commonly encountered problem in many population-based surveys. Broadly speaking, non-response can be due to refusal or failure to contact the sample units. Although both types of non-response may lead to bias, there is much evidence to indicate that it is much easier to reduce the proportion of non-contacts than to do the same with refusals. In this article, we use data collected from a nationally representative survey under the Demographic and Health Surveys program to study non-response due to refusals to HIV testing in Malawi. We review existing estimation methods and propose novel approaches to the estimation of HIV prevalence that adjust for refusal behaviour. We then explain the data requirement and practical implications of the conventional and proposed approaches. Finally, we provide some general recommendations for handling non-response due to refusals and we highlight the challenges in working with Demographic and Health Surveys and explore different approaches to statistical estimation in the presence of refusals. Our results show that variation in the estimated HIV prevalence across different estimators is due largely to those who already know their HIV test results. In the case of Malawi, variations in the prevalence estimates due to refusals for women are larger than those for men.

scholarly journals Characterization of immunization secondary analyses using demographic and health surveys (DHS) and multiple indicator cluster surveys (MICS), 2006–2018

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yue Huang ◽  
M. Carolina Danovaro-Holliday
Keyword(s):  
Time Lag ◽  
Secondary Analysis ◽  
Immunization Coverage ◽  
Relevant Information ◽  
Demographic And Health Surveys ◽  
Eligibility Criteria ◽  
Middle Income ◽  
Publication Delay ◽  
Secondary Analyses ◽  
Immunization Programmes

Abstract Background Infant immunization coverage worldwide has plateaued at about 85%. Using existing survey data to conduct analyses beyond estimating coverage may help immunization programmes better tailor strategies to reach un- and under-immunized children. The Demographic and Health Survey (DHS) and the Multiple Indicators Cluster Survey (MICS), routinely conducted in low and middle-income countries (LMICs), collect immunization data, yet vaccination coverage is often the only indicator reported and used. We conducted a review of published immunization-related analyses to characterize and quantify immunization secondary analyses done using DHS and MICS databases. Methods We conducted a systematic search of the literature, of immunization-related secondary analyses from DHS or MICS published between 2006 and August 2018. We searched 15 electronic databases without language restrictions. For the articles included, relevant information was extracted and analyzed to summarize the characteristics of immunization-related secondary analyses. Results are presented following the PRISMA guidelines. Results Among 1411 papers identified, 115 met our eligibility criteria; additionally, one article was supplemented by the Pan American Health Organization. The majority were published since 2012 (77.6%), and most (68.9%) had a first or corresponding author affiliated with institutions in high-income countries (as opposed to LMICs where these surveys are conducted). The median delay between survey implementation and publication of the secondary analysis was 5.4 years, with papers with authors affiliated to institutions in LMIC having a longer median publication delay (p < 0.001). Over 80% of the published analyses looked at factors associated with a specific vaccine or with full immunization. Quality proxies, such as reporting percent of immunization data from cards vs recall; occurrence and handling of missing data; whether survey analyses were weighted; and listing of potential biases or limitations of the original survey or analyses, were infrequently mentioned. Conclusion Our review suggests that more needs to be done to increase the increase the utilization of existing DHS and MICS datasets and improve the quality of the analyses to inform immunization programmes. This would include increasing the proportion of analyses done in LMICs, reducing the time lag between survey implementation and publication of additional analyses, and including more qualitative information about the survey in the publications to better interpret the results.

Biorefinery implementation for recovery debottlenecking at existing pulp mills- Part II: Techno-economic evaluation

TAPPI Journal ◽  
2012 ◽  
Vol 11 (8) ◽  
pp. 17-24 ◽  
Author(s):  
HAKIM GHEZZAZ ◽  
LUC PELLETIER ◽  
PAUL R. STUART
Keyword(s):  
Cost Estimation ◽  
Process Model ◽  
Black Liquor ◽  
Pulp Mill ◽  
Value Added ◽  
Economic Assessment ◽  
Extraction Process ◽  
Estimation Methods ◽  
Precipitation Process

The evaluation and process risk assessment of (a) lignin precipitation from black liquor, and (b) the near-neutral hemicellulose pre-extraction for recovery boiler debottlenecking in an existing pulp mill is presented in Part I of this paper, which was published in the July 2012 issue of TAPPI Journal. In Part II, the economic assessment of the two biorefinery process options is presented and interpreted. A mill process model was developed using WinGEMS software and used for calculating the mass and energy balances. Investment costs, operating costs, and profitability of the two biorefinery options have been calculated using standard cost estimation methods. The results show that the two biorefinery options are profitable for the case study mill and effective at process debottlenecking. The after-tax internal rate of return (IRR) of the lignin precipitation process option was estimated to be 95%, while that of the hemicellulose pre-extraction process option was 28%. Sensitivity analysis showed that the after tax-IRR of the lignin precipitation process remains higher than that of the hemicellulose pre-extraction process option, for all changes in the selected sensitivity parameters. If we consider the after-tax IRR, as well as capital cost, as selection criteria, the results show that for the case study mill, the lignin precipitation process is more promising than the near-neutral hemicellulose pre-extraction process. However, the comparison between the two biorefinery options should include long-term evaluation criteria. The potential of high value-added products that could be produced from lignin in the case of the lignin precipitation process, or from ethanol and acetic acid in the case of the hemicellulose pre-extraction process, should also be considered in the selection of the most promising process option.

Corporate Social Responsibility Practices in Indian Petroleum Companies: A Case Study of Selected PSUs

Think India ◽  
2018 ◽  
Vol 21 (3) ◽  
pp. 13-18
Author(s):  
Abhijit Ranjan Das ◽  
Subhadeep Mukherjee
Keyword(s):  
Corporate Social Responsibility ◽  
Public Sector ◽  
Social Responsibility ◽  
Business Environment ◽  
Annual Reports ◽  
Net Worth ◽  
Net Profit ◽  
Petroleum Companies ◽  
Corporate Social

Corporate Social Responsibility (CSR) is not a very new concept, it is an old concept. Earlier, in India it was optional to the company that they may contribute voluntarily towards CSR but after the Companies Act 2013, it was formally introduced in the business environment and was made mandatory for those companies whose net worth and profit cross a threshold limit. They should contribute 2% of the average net profit of just preceding three years profit. This paper primarily focuses on CSR practices of some selected public sector petroleum companies in India. The study has been conducted based on the Annual Reports of seven selected public sector companies. Five years of data on CSR spending from 2009–10 to 2014–15 were examined. Moreover, the pattern of expenses was also examined. Since petroleum companies are giants of the India economy and contribute significantly towards the Gross Domestic Product (GDP) of our country. Thus it is necessary to look into how these companies are contributing towards CSR. An attempt has been made to examine the early impact of Section 135 of the Companies Act.

The Translation Problem Types in Translating Indonesia Text to English (A Case Study of Translation Subject of Fifth Semester English Students –UPY)

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Sujatmiko Sujatmiko
Keyword(s):  
Qualitative Method ◽  
English Department ◽  
Problem Types ◽  
Translation Technique ◽  
Data Source ◽  
Word Translation ◽  
Translation Accuracy ◽  
English Students ◽  
Successful Transfer

This research is entitled “The Translation Problem Types in Translating Indonesia textinto English (A Case Study of Translation Subject of Fifth Semester English Department –UPY) . It is about how Indonesia text is translated into English by English students, toidentify the translation problems, and to identify the problematics of translation technique.This research uses qualitative method to analyze the data. Techniques of analyzing datain this research consist of 3 components, they are (1) reducing the data, (2) explaining thedata, and (3) taking a conclusion. Reducing data is a process of selecting, focusing,simplifying and abstracting the data. Explaining the data is a process of organizinginformation and arranging the complete narration. Taking a conclusion is a process ofdrawing conclusion from the data. The data source of this research are Indonesia text andstudent’s translation.After conducting the research, the research find the data that all respondents havesimilar translation problem types in translating Indonesia text into English. The problems arediction, tenses, no equivalence translation; others have problems of adverb, article, andrelative clause. None of respondents apply other translation technique. They only apply wordper word translation technique. The accuracy of transfer level is adequate level. Only onerespondent have almost completely successful transfer level. Other respondents haveadequate accuracy transfer level. By applying the untrue translation technique has an impactto translation accuracy transfer level.This research is expected to open wide opportunities and challenges to academicians,especially those in translation linguistics sphere to deepen their research and study, especiallyin translating Indonesia text to English in order to be a new contribution to the translationfields.

scholarly journals The reasons women choose and stay in a geology major: a qualitative multi-case analysis

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Ron E. Gray ◽  
Alexis T. Riche ◽  
Isabel J. Shinnick-Gordon ◽  
James C. Sample
Keyword(s):  
Role Models ◽  
Critical Incident ◽  
Earth Science ◽  
Time Period ◽  
The Usa ◽  
Data Source ◽  
Introductory Classes ◽  
Iterative Coding ◽  
As Relationship

AbstractDespite earning half of all science and engineering undergraduate degrees between 2007 and 2016 in the USA, women were awarded only 39% of earth science degrees in the same time period. In order to better understand why women are both choosing and staying in geology programs, we conducted a multi-case study of nine current female undergraduate geology majors at a large public university in the USA within a department that is at gender parity among its undergraduate majors. The main data source was audio-recorded critical incident interviews of each participant. Data from the interviews were analyzed through an iterative coding process using codes adapted from previous studies that focused on factors both internal and external to the department. The students said that personal interests, influence by others outside of the department, and introductory classes attracted them to the geology program, but once declared, departmental factors such as relationship with faculty caused them to stay. We also found an emphasis on female role models, especially those teaching introductory courses. We believe this study offers important insights into the ways in which factors leading to recruitment and retention play out in the lived experiences of female geology majors.

scholarly journals Using Internet Search Queries to Assess Public Awareness of the Healthy Cities Approach: A Case Study in Shenzhen, China

2021 ◽  
Vol 18 (8) ◽  
pp. 4264
Author(s):  
Jun Yang ◽  
Yutong Zhang ◽  
Yixiong Xiao ◽  
Shaoqing Shen ◽  
Mo Su ◽  
...  
Keyword(s):  
Public Awareness ◽  
Healthy Cities ◽  
Internet Search ◽  
Health Concerns ◽  
Search Queries ◽  
The Public ◽  
Health Factors ◽  
Data Source ◽  
The City

Cities around the globe are embracing the Healthy Cities approach to address urban health challenges. Public awareness is vital for successfully deploying this approach but is rarely assessed. In this study, we used internet search queries to evaluate the public awareness of the Healthy Cities approach applied in Shenzhen, China. The overall situation at the city level and the intercity variations were both analyzed. Additionally, we explored the factors that might affect the internet search queries of the Healthy Cities approach. Our results showed that the public awareness of the approach in Shenzhen was low. There was a high intercity heterogeneity in terms of interest in the various components of the Healthy Cities approach. However, we did not find a significant effect of the selected demographic, environmental, and health factors on the search queries. Based on our findings, we recommend that the city raise public awareness of healthy cities and take actions tailored to health concerns in different city zones. Our study showed that internet search queries can be a valuable data source for assessing the public awareness of the Healthy Cities approach.

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