scholarly journals Capture - recapture based study on the completeness of smear positive pulmonary tuberculosis reporting in southwest Iran during 2016

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Homayoun Amiri ◽  
Mohammad Javad Mohammadi ◽  
Seyed Mohammad Alavi ◽  
Shokrolah Salmanzadeh ◽  
Fatemeh Hematnia ◽  
...  
Keyword(s):  
Pulmonary Tuberculosis ◽  
Linear Model ◽  
Causes Of Death ◽  
Prescription Data ◽  
Rural Regions ◽  
Smear Positive Pulmonary Tuberculosis ◽  
Capture Recapture ◽  
Log Linear ◽  
Southwest Iran ◽  
Completeness Of Reporting

Abstract Background Tuberculosis (TB) is one of the ten leading causes of death in infectious diseases and one of the ten leading causes of death in the world. For any TB control program, a valid surveillance is essential. In order to assess the status of the assessment, the quality of the record and the completeness of reporting should be assessed. The purpose of this study was to investigate the completeness of smear positive pulmonary tuberculosis reporting in Ahvaz, south west of Iran. Methods This cross-sectional study was conducted in 2016 in Ahvaz, southwest Iran. The study was conducted through a three-source Capture recapture method by collecting laboratory, hospital, physician prescription data; including patient referral to the health care center, prescriptions of patients receiving anti-tuberculosis drugs and prescriptions of medical TB diagnostic laboratories, and laboratory prescriptions. Percentage, mean and standard deviation were used to describe the variables. Data analysis was performed using log-linear model in Rcapture package R software. Results Generally, 134 new cases of smear-positive pulmonary tuberculosis patients were reported through three sources from urban and rural regions during 2016. Pulmonary tuberculosis was reported through three sources from urban and rural regions during 2016. The most common age group was 25 to 44 years and 79.1% of the patient were man. The overall prevalence of new cases of smear-positive pulmonary tuberculosis was in persons that lived urban areas (97.8%). The completeness of reporting the disease estimated by log-linear model was 87.5% and the incidence rate was estimated to be 11.8 disease per 100,000 persons. Completeness of reporting of laboratory, hospital and physician resources were 79%, 30% and 16.3%, respectively. Conclusions The present study shows the necessity of evaluating the quality, completeness and linkage between data. Linking between data sources can improve the accuracy and completeness of TB surveillance.

scholarly journals Capture - Recapture based Study on The Completeness of Smear Positive Pulmonary Tuberculosis Reporting in southwest Iran during 2016

2021 ◽  
Author(s):  
Homayoun Amiri ◽  
Mohammad javad Mohammadi ◽  
Seyed Mohammad alavi ◽  
Shokrolah Salmanzadeh ◽  
Fatemeh Hematnia ◽  
...  
Keyword(s):  
Pulmonary Tuberculosis ◽  
Causes Of Death ◽  
Control Program ◽  
Health Centers ◽  
The Status ◽  
Smear Positive Pulmonary Tuberculosis ◽  
Capture Recapture ◽  
Southwest Iran ◽  
Completeness Of Reporting

Abstract Background Tuberculosis (TB) is one of the ten leading causes of death in infectious diseases and one of the ten leading causes of death in the world. For any TB control program, a reliable surveillance is essential. In order to assess the status of the Surveillance, the quality of the record and the completeness of reporting should be assessed. The purpose of this study was to investigate the completeness of smear positive pulmonary tuberculosis reporting in Ahvaz of Iran. Methods The study was conducted through a Three-source Capture recapture method by collecting laboratory, hospital, and physician reporting data - including introducing patients to health centers and reviewing drug and laboratory prescriptions. Data analysis was performed using linear logarithm model in Rcapture package R software. Results In total, 134 new cases of smear-positive pulmonary tuberculosis were reported through three sources During 2016. The completeness of reporting the disease was estimated 87.5% and the incidence rate was estimated to be 11.8 / 100,000. Completeness of reporting of laboratory, hospital and physician resources were 79%, 30% and 16.3%, respectively. Conclusion The present study showed the necessity of evaluating the quality, completeness and linkage between data. Linking between data sources can improve the accuracy and completeness of TB Surveillance.

The Importance of Numbers: Using Capture-recapture to make the Homeless Count in Adelaide

2007 ◽  
Vol 13 (1) ◽  
pp. 89 ◽  
Author(s):  
Katina D'Onise ◽  
Yan Wang ◽  
Robyn McDermott
Keyword(s):  
Confidence Interval ◽  
Linear Model ◽  
Service Sector ◽  
Homeless People ◽  
Australian Bureau ◽  
City Council ◽  
Homeless Population ◽  
Capture Recapture ◽  
Australian Bureau Of Statistics ◽  
Log Linear

An important problem for the homeless service sector is understanding the size of homeless populations, which has implications on planning services and social policy. The aim of this study is to apply capture-recapture methods to count the primary homeless population in the Adelaide city council area, to examine the use of an alternative method to the Australian Bureau of Statistics census. Capture-recapture techniques were used to analyse homeless registers from three different services to estimate the number of primary homeless people in the Adelaide city council area from 19 June to 19 September 2005. Log-linear model and the sample coverage method were employed to analyse the data. The log-linear model results gave a population estimate of 455 (95% confidence interval 299, 762), and the sample coverage method of 311 (95% confidence interval 229, 466), compared with 104 from the Australian Bureau of Statistics census. Multiple sources of information utilising different methodologies should be considered together when attempting to plan services for primary homeless people, as all available techniques have important limitations. Capture-recapture is an important method to supplement any attempt at enumeration of hidden, mobile or difficult-to-reach populations.

Improved log-linear model estimators of abundance in capture-recapture experiments

2001 ◽  
Vol 29 (4) ◽  
pp. 555-572 ◽  
Author(s):  
Louis-Paul Rivest ◽  
Tina Lévesque
Keyword(s):  
Linear Model ◽  
Capture Recapture ◽  
Log Linear

Capture-recapture study to estimate the true incidence of tuberculosis in Portugal, 2018

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
M Perez Duque ◽  
L Hansen ◽  
D Antunes ◽  
R Sá Machado
Keyword(s):  
Infectious Disease ◽  
Linear Model ◽  
Surveillance System ◽  
Epidemiological Surveillance ◽  
Accurate Estimation ◽  
Surveillance Systems ◽  
True Incidence ◽  
True Number ◽  
Capture Recapture ◽  
Log Linear

Abstract Accurate estimation of the true number of cases of an infectious disease is essential to plan and efficiently allocate available resources. This study aims to improve the Portuguese surveillance system for tuberculosis (TB) by identifying gaps in TB epidemiological surveillance at the national level. We estimated annual TB incidence using a capture-recapture method to assess the sensitivity of national TB surveillance. Using probabilistic record linkage between two data sources, the National Epidemiological Surveillance System (SINAVE) and National Tuberculosis Program Surveillance System (SVIG-TB), we extracted TB diagnosed cases data for calendar year 2018. All reported TB cases were included, classified as confirmed, probable or possible. A two-source capture-recapture analysis using a log-linear model was performed to estimate the number of unobserved TB cases in Portugal and of the proportion identified by the current TB surveillance system. Between the two datasets, we found 896 TB cases (of a total of 2170 cases) that could not be matched (37.5% SINAVE only, 62.5% SVIG only). Based on the log-linear model, it was estimated that there were 148 unobserved TB cases (95% confidence interval 127.96 - 171.31). Therefore, the estimated true number of TB cases in 2018 is 2318, so current surveillance has a sensitivity of 93.6%. Based on these findings, the TB incidence in Portugal is estimated to be 22.55 cases per 100 000 inhabitants. Capture-recapture methods are useful in estimating annual TB incidence in high-resource settings. Although the two TB surveillance systems capture the majority of TB cases in Portugal, we might still be underestimating the true number of TB cases. Because TB is a high impact infectious disease, precise incidence estimates are crucial to allocate treatment and prevention resources and guide health policies. Key messages CRC method showed that Portugal is a TB low incidence country. Epidemiological surveillance systems should have a high sensitivity in order to allocate efficiently resources available.

Prevalence of Multiple Sclerosis in the City of Volta Redonda - Rio De Janeiro, Brazil Using the Capture-Recapture Method

2016 ◽  
Vol 46 (2) ◽  
pp. 88-95 ◽  
Author(s):  
Ana Beatriz Clamon ◽  
Fernanda Pereira ◽  
Benoit Marin ◽  
Pierre-Marie Preux ◽  
Regina Papais Alvarenga
Keyword(s):  
Multiple Sclerosis ◽  
Latin America ◽  
Linear Model ◽  
Prevalence Rate ◽  
True Prevalence ◽  
The World ◽  
Capture Recapture ◽  
Log Linear ◽  
Incomplete Lists ◽  
The City

Background: Multiple sclerosis (MS) prevalence in Latin America was estimated in some regions and it was found to range from 0.75 to 30/100,000. The reasons for variation in rates of prevalence around the world still are not clear, but there are environmental and genetic explanations to this phenomenon. This study aimed at estimating the MS prevalence in Volta Redonda, Brazil. Method: Three sources of cases ascertainment were used and the method of capture-recapture was applied for assessing the corrected prevalence in the city of Volta Redonda in November 2012. The capture-recapture method uses data from incomplete lists and allows calculating the number of unregistered cases. Data were analyzed using a log-linear model. Results: A total of 40 MS cases was found by withdrawing overlaps of sources and it was estimated that a total number of 40 cases (95% CI 13.5-118.8) were not detected by the sources. The corrected prevalence of MS was, then, 30.7/100,000. Conclusion: Our study was the first in Brazil to use the capture-recapture method to assess the prevalence of MS, demonstrating the highest prevalence rate so far. It is necessary to perform other similar studies and in other regions of the country using the same method for a better evaluation of the true prevalence of MS our country.

scholarly journals Performance of diagnostic tests for pulmonary tuberculosis in indigenous populations in Brazil: the contribution of Rapid Molecular Testing

2019 ◽  
Vol 45 (2) ◽  
Author(s):  
Jocieli Malacarne ◽  
Alexsandro Santos Heirich ◽  
Eunice Atsuko Totumi Cunha ◽  
Ida Viktoria Kolte ◽  
Reinaldo Souza-Santos ◽  
...  
Keyword(s):  
Pulmonary Tuberculosis ◽  
Secondary Data ◽  
Standard Test ◽  
Sputum Culture ◽  
Indigenous Populations ◽  
Molecular Testing ◽  
Test Results ◽  
Rural Regions ◽  
High Incidence ◽  
Smear Positive Pulmonary Tuberculosis

ABSTRACT Objective: To evaluate the accuracy of rapid molecular testing as a diagnostic tool and estimate the incidence of smear-positive pulmonary tuberculosis among the indigenous population. Methods: This is an epidemiological study based on secondary data. We calculated the incidence of smear-positive pulmonary tuberculosis between January 1st, 2011 and December 31, 2016, and the performance of bacilloscopy and rapid molecular testing in diagnosing pulmonary tuberculosis compared to sputum culture (standard test). Results: We included 4,048 cases of indigenous people with respiratory symptoms who provided sputum samples for analysis. Among them, 3.7%, 6.7%, and 3.7% had positive results for bacilloscopy, sputum culture, and rapid molecular testing, respectively. The mean incidence of pulmonary tuberculosis was 269.3/100 thousand inhabitants. Rapid molecular testing had 93.1% sensitivity and 98.2% specificity, compared to sputum culture. Bacilloscopy showed 55.1% sensitivity and 99.6% specificity. Conclusions: Rapid molecular testing can be useful in remote areas with limited resources and a high incidence of tuberculosis, such as indigenous villages in rural regions of Brazil. In addition, the main advantages of rapid molecular testing are its easy handling, fast results, and the possibility of detecting rifampicin resistance. Together, these attributes enable the early start of treatment, contributing to reduce the transmission in communities recognized as vulnerable to infection and disease.

scholarly journals Record-linkage and capture–recapture analysis to estimate the incidence and completeness of reporting of tuberculosis in England 1999–2002

2008 ◽  
Vol 136 (12) ◽  
pp. 1606-1616 ◽  
Author(s):  
N. A. H. VAN HEST ◽  
A. STORY ◽  
A. D. GRANT ◽  
D. ANTOINE ◽  
J. P. CROFTS ◽  
...  
Keyword(s):  
United Kingdom ◽  
Data Quality ◽  
Record Linkage ◽  
False Positive ◽  
Cross Validation ◽  
Data Sources ◽  
The United Kingdom ◽  
Capture Recapture ◽  
Log Linear ◽  
Completeness Of Reporting

SUMMARYIn 1999 the Enhanced Tuberculosis Surveillance (ETS) system was introduced in the United Kingdom to strengthen surveillance of tuberculosis (TB). The aim of this study was to assess the use of record-linkage and capture–recapture methodology for estimating the completeness of TB reporting in England between 1999 and 2002. Due to the size of the TB data sources sophisticated record-linkage software was required and the proportion of false-positive cases among unlinked hospital-derived TB records was estimated through a population mixture model. This study showed that record-linkage of TB data sources and cross-validation with additional TB-related datasets improved data quality as well as case ascertainment. Since the introduction of ETS observed completeness of notification in England has increased and the results were consistent with expected levels of under-notification. Completeness of notification estimated by a log-linear capture–recapture model was highly inconsistent with prior estimates and the validity of this methodology was further examined.

Causes of Death

2018 ◽  
Author(s):  
Michael Anderson ◽  
Corinne Roughley
Keyword(s):  
Heart Disease ◽  
Pulmonary Tuberculosis ◽  
Western Europe ◽  
Causes Of Death ◽  
Whooping Cough ◽  
The Elderly ◽  
World War Two ◽  
World War ◽  
The Past ◽  
Disease Mortality

The principal reported causes of death have changed dramatically since the 1860s, though changes in categorization of causes and improved diagnosis make it difficult to be precise about timings. Diseases particularly affecting children such as measles and whooping cough largely disappeared as killers by the 1950s. Deaths particularly linked to unclean environments and poor sanitary infrastructure also declined, though some can kill babies and the elderly even today. Pulmonary tuberculosis and bronchitis were eventually largely controlled. Reported cancer, stroke, and heart disease mortality showed upward trends well into the second half of the twentieth century, though some of this was linked to diagnostic improvement. Both fell in the last decades of our period, but Scotland still had among the highest rates in Western Europe. Deaths from accidents and drowning saw significant falls since World War Two but, especially in the past 25 years, suicide, and alcohol and drug-related deaths rose.

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