Risk factors for tuberculosis in contact investigations in Rotterdam, the Netherlands

EFFECT OF PATIENT'S PERSONAL CHARACTER ON PREVENTION OF TRANSMISSION OF PULMONARY TB

Tuberculosis (TB) is an infectious disease that is still a problem for health in the world, caused by Mycobacterium tuberculosis. Muaro Jambi showed second ranks of TB patients number in Jambi Province. Based on the available data, the biggest positive TB patients were in the Muara Kumpeh Health Center working area which was 54 people (2016) and 68 people (2017). The purpose of this study was to determine the relationship and risk of Self Efficacy and Interpersonal Relations to the prevention of pulmonary TB transmission in the Muara Kumpeh Health Center in Muaro Jambi District in 2018. This research is a quantitative research with Cross Sectional Study research design. The sample of this study was 68 people interviewed using questionnaire with the Total Sampling. The research was carried out in the work area of Muara Kumpeh Health Center in April-August 2018. The data was collected then analyzed in univariate and bivariate. A total of 37% of respondents were adults (26-45 years), 53% of male patients and 52% of respondents were treated by their spouses during illness. There was a significant relationship (p-value = 0.011) between self efficacy and TB transmission prevention behavior and low self efficacy at 5.14 times the risk of transmitting pulmonary TB compared to high self efficacy. With high self confidence from respondents can provide good motivation for their recovery. There was no significant relationship (p-value = 0.104) between interpersonal relationships with TB transmission prevention behaviors and interpersonal relationships not risk factors for preventing TB transmission behavior. This could be due to not too much percentage difference between respondents who have low and high interpersonal relationships. Besides that, the knowledge factor of the patient's family can also be confounding on this variable. Low self efficacy has a risk of 5.14 times transmitting TB and this is statistically significant. It is better to do more routine care of the patient's family so that it can improve self efficacy and interpersonal relationships of the patient.

Interventions to improve contact tracing for tuberculosis in specific groups and in wider populations: an evidence synthesis

Background

The tracing and screening of people who have had contact with an active case of tuberculosis (TB) is an important element of TB control strategies.

Objectives

This study aimed to carry out a review of evidence regarding TB contact tracing, with a particular emphasis on research that was applicable to TB contact tracing in specific population groups in the UK.

Design

An evidence synthesis of literature of any study design on TB contact tracing in developed countries was carried out.

Setting

Any setting.

Population

Individuals found to have active TB disease, and people who have come into contact with them.

Interventions

Contact-tracing investigations.

Main outcome measures

Any outcome related to TB infection, contact investigations and/or the views of staff, people with TB disease, or their contacts.

Data sources

Searches for research published 1995 onwards were undertaken in the following databases: MEDLINE via Ovid SP, EMBASE via Ovid SP, EconLit via Ovid SP, PsycINFO via Ovid SP, Social Policy and Practice via Ovid SP, Cumulative Index to Nursing and Allied Health Literature via EBSCOhost, Science and Social Science Citation Indices via Web of Science and The Cochrane Library via Wiley Online Library.

Review methods

The study comprised a review of TB contact tracing in specific population groups and a review in wider populations. A narrative synthesis was completed and a logic model was developed from the literature.

Results

There were 112 articles in the review: 23 related to specific populations and 89 related to wider populations. The literature was of limited quality, with much general description of investigations. We identified only two (uncontrolled) studies that could be considered evaluative. Although the limitations of the evidence should be recognised, the review suggested the following: the value of a location-based approach, working with local communities and the media, partnership working, using molecular epidemiological testing, ensuring adequate systems and addressing fear of stigma. The literature on investigations for specific populations has much concordance with that reporting findings from wider population groups. The recognised limitations of conventional investigation methods may, however, be exacerbated in specific populations.

Limitations

The English-language inclusion criterion may have limited the breadth of countries represented. A meta-analysis was not possible owing to the nature of the literature. Relevant studies may have been missed by our searches, which used terminology relating to contact tracing rather than to active case finding or screening.

Conclusions

The review identified a sizeable volume of literature relating to contact investigations. However, it is currently predominantly descriptive, with little evaluative work underpinning investigations in either specific or wider populations. Our findings are, therefore, based on limited evidence. Further research is required if robust conclusions are to be made.

Future work

Research should further explore the development of measures that can be used to compare the effectiveness of different contact investigations, in studies using evaluative designs.

Funding

The National Institute for Health Research Health Services and Delivery Research programme.

The Yield of Community-Based "Retrospective" Tuberculosis Contact Investigation in a High Burden Setting in Ethiopia

Objective

To determine the yield and determinants of retrospective TB contact investigation in selected zones in Ethiopia.

Materials and Methods

This was a community-based cross-sectional study conducted during June-October 2014.Trained lay providers performed symptom screening for close contacts of index cases with all types of TB registered for anti-TB treatment within the last three years. We used logistic regression to determine factors associated with TB diagnosis among the contacts.

Results

Of 272,441 close contacts of 47, 021 index cases screened, 13,886 and 2, 091 had presumptive and active TB respectively. The yield of active TB was thus 768/100, 000, contributing 25.4% of the 7,954 TB cases reported from the study zones over the study period. The yield was highest among workplace contacts (12,650/100, 000). Active TB was twice more likely among contacts whose index cases had been registered for TB treatment within the last 12 months compared with those who had been registered 24 or more months earlier (adjusted odds ratio, AOR: 1.77 95% CI 1.42–2.21). Sex or clinical type of TB in index cases was not associated with the yield. Smear negative (SS-) index cases (AOR: 1.74 955 CI 1.13–2.68), having index cases who registered for treatment within <12 months (AOR: 2.41 95% CI 1.51–3.84) and being household contact (AOR: 0.072 95% CI 0.01–0.52) were associated with the occurrence of active TB in children.

Conclusions

The yield of retrospective contact investigation was about six times the case notification in the study zones, contributing a fourth of all TB cases notified over the same period. The yield was highest among workplace contacts and in those with recent past history of contact. Retrospective contact screening can serve as additional strategy to identify high risk groups not addressed through currently recommended screening approaches.