A household survey on screening practices of household contacts of smear positive tuberculosis patients in Vietnam

Thanh, Thuy Hoang Thi; Ngoc, Sy Dinh; Viet, Nhung Nguyen; Van, Hung Nguyen; Horby, Peter; Cobelens, Frank; Wertheim, Heiman

doi:10.1186/1471-2458-14-713

Cited by 26 publications

(20 citation statements)

References 5 publications

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“…Our finding is slightly higher than reported from India 14% of household contacts were screened for TB by health care workers [22]. However, it is lower than the reported of index TB cases had at least one HH contact screened for TB ranged from 33.7 to 79% in Ethiopia [16,18,20,23], and 30.7% in Vietnam [24]. The discrepancy could be due to the difference of TB screening approaches and studies methods.…”

Section: Discussioncontrasting

confidence: 81%

Implementation status of household contact tuberculosis screening by health extension workers: assessment findings from programme implementation in Tigray region, northern Ethiopia

Gebretnsae

Ayele

Hadgu

et al. 2020

BMC Health Serv Res

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Background: In the Tigray region of Ethiopia, Health Extension Workers (HEWs) conduct Tuberculosis (TB) screening for all household (HH) contacts. However, there is limited evidence on implementation status of HH contact TB screening by HEWs. The aim of this program assessment was to describe the implementation status and associated factors of HH contact TB screening by HEWs. Methods: This programme assessment was conducted in three randomly selected districts from March to April 2018. Data was collected by using pre-tested structured questionnaire. Descriptive statistics was carried out using frequency tables. Logistic regression analysis was done to identify factors associated with HH contacts screening by HEWs. Results: In this programme assessment a total of HHs of 411 index TB cases were included. One-fifth (21.7%) of index TB cases had at least one HH contact screened for TB by HEWs. Having TB treatment supporter (TTS) during intensive phase of index TB case (AOR = 2.55, 95% CI: 1.06-6.01), health education on TB to HH contacts by HEWs (AOR = 4.28, 95% CI: 2.04-9.00), HH visit by HEWs within 6 months prior to the programme assessment (AOR = 5.84, 95% CI: 2.81-12.17) and discussions about TB activities by HEWs with Women Development Army (WDA) leaders (AOR = 9.51, 95% CI: 1.49-60.75) were significantly associated with household contact TB screening by HEWs. Conclusions: Our finding revealed that the proportion of HH contact TB screened by HEWs was low. Therefore, HEWs should routinely visit HHs of index TB cases and provide regular health education to improve contact screening practice. In addition, it is highly recommended to strengthen HEWs regular discussion about TB activities with WDA leaders and TB TTS.

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Section: Discussioncontrasting

confidence: 81%

Implementation status of household contact tuberculosis screening by health extension workers: assessment findings from programme implementation in Tigray region, northern Ethiopia

Gebretnsae

Ayele

Hadgu

et al. 2020

BMC Health Serv Res

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“…The National TB Program has recently adopted a policy of routine symptom screening and preventive therapy for child contacts. However screening of adult contacts is not performed routinely [ 14 ].…”

Section: Methodsmentioning

confidence: 99%

Barriers to adherence with tuberculosis contact investigation in six provinces of Vietnam: a nested case–control study

et al. 2015

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BackgroundClose contacts of patients with tuberculosis (TB) have a substantial risk of developing the disease, particularly during the first year after exposure. Household contact investigation has recently been recommended as a strategy to enhance case detection in high-burden countries. However the barriers to its implementation in these settings remain poorly understood.MethodsA nested case–control study was conducted in Vietnam within the context of a large cluster randomised controlled trial of active screening for TB in household contacts of patients with pulmonary TB. The study population comprised contacts (and their index patients) from 12 Districts in six provinces throughout the country. Cases were contacts (and their index patients) that did not attend the scheduled screening appointment. Controls were those who did attend. We assessed relevant knowledge, attitudes and practices in cases and controls.ResultsThe acceptability of contact investigation was high among both cases (n = 109) and controls (n = 194). Both cases (47%) and controls (36%) commonly reported discrimination against people with TB. Cases were less likely than controls to understand that sharing sleeping quarters with a TB patient increased their risk of disease (OR 0.46, 0.27 – 0.78) or recognise TB as an infectious disease (OR 0.65, 0.39 – 1.08). A higher proportion of cases than controls held the mistaken traditional belief that a non-infectious form of TB caused the disease (OR 1.69, 1.02 – 2.78).ConclusionsThe knowledge, attitudes and practices of contacts and TB patients influence their ongoing participation in contact investigation. TB case detection policies in high-prevalence settings can be strengthened by systematically evaluating and addressing locally important barriers to attendance.Trial registrationAustralian New Zealand Clinical Trials Registry, ACTRN12610000600044.Electronic supplementary materialThe online version of this article (doi:10.1186/s12879-015-0816-0) contains supplementary material, which is available to authorized users.

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“…Our findings are similar to screening rates of 9.0% and 5.5% among TB contact children under 5 in Malawi and Vietnam, respectively. 13,14 The low TB screening rate in our study may have left many children without appropriate interventions, putting them at risk of developing active TB disease. One-third of the IPT-eligible childrenthose who were screened and found not to have presumptive TBwere started on therapy.…”

Section: Discussionmentioning

confidence: 86%

Tuberculosis Contact Screening and Isoniazid Preventive Therapy Among Children Under 5 in the Mbeya and Songwe Regions, Tanzania

Mwasubila

Sabi

Kabyemera

et al. 2018

EAHRJ

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Introduction: The World Health Organization (WHO) recommends contact screening and initiation of isoniazid preventive therapy (IPT) for children under 5 years of age exposed to a sputum smear-positive (SS+) tuberculosis (TB) source case. We conducted this study in order to assess implementation of these recommendations in southwestern Tanzania.Methods: We conducted this cross-sectional study from June to August 2015 in 12 selected health facilities in the Mbeya and Songwe regions of Tanzania. Adult SSþ pulmonary TB patients living in the same household as children under 5 were enrolled. Structured questionnaires were used to obtain sociodemographic information and details about screening and intervention activity related to contact children under 5. Data were analysed using Stata version 11.0. Results:We enrolled 257 index cases, who collectively had 433 contact children under 5. The median age of the index cases was 34 years (interquartile range 28 to 41) and 52.9% were male. Out of 433 contacts, 31 (7.2%) were screened for TB, of whom 7 (22.6%) were treated for presumptive TB. Among those screened, 24 were not diagnosed with TB, of whom only 8 (33.3%) received IPT.Conclusion: Low uptake of TB contact screening and IPT administration among eligible children under 5 was observed in this study. Health-care workers should be sensitized to screening of household contacts of adults with SSþ TB and initiate IPT in those who are eligible. TB contacts 433 Not screened for TB 402 (92.8%) Did not receive IPT 16 (66.7%) No presumptive TB disease 24 (77.4%) Presumptive TB disease and treated 7 (22.6%) Received IPT 8 (33.3%) Screened for TB 31 (7.2%)Abbreviations: IPT, isoniazid preventive therapy; TB, tuberculosis.

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A household survey on screening practices of household contacts of smear positive tuberculosis patients in Vietnam

Cited by 26 publications

References 5 publications

Implementation status of household contact tuberculosis screening by health extension workers: assessment findings from programme implementation in Tigray region, northern Ethiopia

Implementation status of household contact tuberculosis screening by health extension workers: assessment findings from programme implementation in Tigray region, northern Ethiopia

Barriers to adherence with tuberculosis contact investigation in six provinces of Vietnam: a nested case–control study

Tuberculosis Contact Screening and Isoniazid Preventive Therapy Among Children Under 5 in the Mbeya and Songwe Regions, Tanzania

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