Abstract
INTRODUCTION: Screening of selected high-risk groups including contacts of Tuberculosis (TB) cases are in line with the end TB Strategy. The systematic and actively tuberculosis contact investigations contributed to the early identification of active TB. This study aims to measure the incidence of TB among the household- contacts of TB cases and determined the risk factors for transmission of TB. METHODS: Retrospective analyses were conducted of abstracted data from the National TB information System (TBIS) following a contact investigation intervention for TB cases diagnosed in Malaysia from year 2016 to 2018. Various proportions and yield from number of contacts needed to screen (NNS) and number needed to test (NNT) to detect a TB case were assessed. Incidence of TB among the contacts were determined. RESULTS: Overall, out of the 216,131 listed contacts of 25,837 index cases, 179,423 (99.1%) were screened and 1519(0.8%) were identified as presumptive TB. Out of these, 1,100 (72.9%) underwent sputum smear microscopy/evaluation and 298 TB cases were diagnosed. Of these, 67.1% had sputum smear-positive TB, 28.8% had sputum smear-negative TB. Among the 177904 asymptomatic, 115,577 (64.9%) underwent TST and 5415 (4.7%) were positive. Among the positive TST, 64 (1.2%) actually had TB while remaining keep as latent. Overall the TB incidence among the contacts (216,131) was 167 per 100,000 populations. CONCLUSIONS: The study demonstrates that contact identification and prioritization components of a contact investigation were feasible. The household contact investigation is a great approach to detect and treat tuberculosis and best methods to control TB in Malaysia.
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@proceedings{APCPH-2019-192, title = {Incidence of Tuberculosis Among the Household-Contact of Tuberculosis Patients in Malaysia}, author = {Mohd Ihsani Mahmood and Mohamed Naim Abdul Kadir}, year = {2019}, date = {2019-07-22}, urldate = {2019-07-22}, journal = {6th Asia-Pacific Conference on Public Health 2019 Proceedings}, issue = {6}, abstract = {INTRODUCTION: Screening of selected high-risk groups including contacts of Tuberculosis (TB) cases are in line with the end TB Strategy. The systematic and actively tuberculosis contact investigations contributed to the early identification of active TB. This study aims to measure the incidence of TB among the household- contacts of TB cases and determined the risk factors for transmission of TB. METHODS: Retrospective analyses were conducted of abstracted data from the National TB information System (TBIS) following a contact investigation intervention for TB cases diagnosed in Malaysia from year 2016 to 2018. Various proportions and yield from number of contacts needed to screen (NNS) and number needed to test (NNT) to detect a TB case were assessed. Incidence of TB among the contacts were determined. RESULTS: Overall, out of the 216,131 listed contacts of 25,837 index cases, 179,423 (99.1%) were screened and 1519(0.8%) were identified as presumptive TB. Out of these, 1,100 (72.9%) underwent sputum smear microscopy/evaluation and 298 TB cases were diagnosed. Of these, 67.1% had sputum smear-positive TB, 28.8% had sputum smear-negative TB. Among the 177904 asymptomatic, 115,577 (64.9%) underwent TST and 5415 (4.7%) were positive. Among the positive TST, 64 (1.2%) actually had TB while remaining keep as latent. Overall the TB incidence among the contacts (216,131) was 167 per 100,000 populations. CONCLUSIONS: The study demonstrates that contact identification and prioritization components of a contact investigation were feasible. The household contact investigation is a great approach to detect and treat tuberculosis and best methods to control TB in Malaysia.}, note = {Type: POSTER PRESENTATION; Organisation:}, keywords = {Household-contact, Incidence of Tuberculosis, Malaysia, tuberculosis}, pubstate = {published}, tppubtype = {proceedings} }