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  1. Hiding in plain sight: Diagnosing pleural tuberculosis using lung ultrasound
    Ahmed WAW, Rahim MJC, Mohammad N, Fauzi MH, Wahab SFA
    Ultrasound, 2021 May;29(2):123-127.
    PMID: 33995559 DOI: 10.1177/1742271X20959761
    Introduction: Diagnosing pleural tuberculosis can be difficult in patients with ambiguous presentation, especially in resource-limited health centres. Thus, lung ultrasound had been studied as a novel method in helping clinicians to diagnose this condition.

    Case presentation: A 48-year-old woman presented with worsening dyspnoea and orthopnoea for one week. She had also experienced weight loss, minimal dry cough and right-sided pleuritic chest pain for several weeks. A chest radiograph showed a right lower zone pleural effusion with no apparent lung consolidation. Lung ultrasound showed a right apical consolidation and right lower zone septated pleural effusion. Pleural fluid investigations showed exudative features of mixed lymphocytic, mesothelial and neutrophilic cellular components. Tuberculin skin test was strongly positive. She was subsequently treated for pleural tuberculosis. One month after treatment, her symptoms had improved considerably.

    Discussion: Lung ultrasound has been found to be more effective than chest radiograph in detecting consolidation and diagnosing pneumonia. The portability and efficacy of today's ultrasound machines, including the handheld types, show that lung ultrasound is a practical, reliable and valuable diagnostic tool in managing pulmonary conditions including tuberculosis, provided that the operators are adequately trained.

    Conclusion: Lung ultrasound in tuberculosis is the next frontier for clinicians and researchers.

    Matched MeSH terms: Tuberculin Test
  2. Fulltext Latent tuberculosis infection in a Malaysian prison: implications for a comprehensive integrated control program in prisons
    Al-Darraji HA, Kamarulzaman A, Altice FL
    BMC Public Health, 2014 Jan 10;14:22.
    PMID: 24405607 DOI: 10.1186/1471-2458-14-22
    Prisons continue to fuel tuberculosis (TB) epidemics particularly in settings where access to TB screening and prevention services is limited. Malaysia is a middle-income country with a relatively high incarceration rate of 138 per 100,000 population. Despite national TB incidence rate remaining unchanged over the past ten years, data about TB in prisons and its contribution to the overall national rates does not exist. This survey was conducted to address the prevalence of latent TB infection (LTBI) in Malaysia's largest prison.
    Matched MeSH terms: Tuberculin Test
  3. Tuberculosis screening in a novel substance abuse treatment center in Malaysia: implications for a comprehensive approach for integrated care
    Al-Darraji HA, Wong KC, Yeow DG, Fu JJ, Loeliger K, Paiji C, et al.
    J Subst Abuse Treat, 2014 Feb;46(2):144-9.
    PMID: 24074846 DOI: 10.1016/j.jsat.2013.08.023
    People who use drugs (PWUD) represent a key high risk group for tuberculosis (TB). The prevalence of both latent TB infection (LTBI) and active disease in drug treatment centers in Malaysia is unknown. A cross-sectional convenience survey was conducted to assess the prevalence and correlates of LTBI among attendees at a recently created voluntary drug treatment center using a standardized questionnaire and tuberculin skin testing (TST). Participants (N=196) were mostly men (95%), under 40 (median age=36 years) and reported heroin use immediately before treatment entry (75%). Positive TST prevalence was 86.7%. Nine (4.6%) participants were HIV-infected. Previous arrest/incarcerations (AOR=1.1 for every entry, p<0.05) and not being HIV-infected (AOR=6.04, p=0.03) were significantly associated with TST positivity. There is an urgent need to establish TB screening and treatment programs in substance abuse treatment centers and to tailor service delivery to the complex treatment needs of patients with multiple medical and psychiatric co-morbidities.
    Matched MeSH terms: Tuberculin Test
  4. Effect of delay in diagnosis on the rate of tuberculosis among close contacts of tuberculosis patients
    Aldhubhani AH, lzham MI, Pazilah I, Anaam MS
    East Mediterr Health J, 2013 Oct;19(10):837-42.
    PMID: 24313146
    Few studies have explored diagnosis delay by tuberculosis (TB) patients and its effects on the rate of infection among their close contacts. A cross-sectional study of the close contacts of 505 newly diagnosed TB patients was conducted in a TB referral centre in Sana'a, Yemen from 2008 to 2010. Only the close contacts of 89 new TB patients agreed to participate and completed the tuberculin skin test (TST). Of the 239 close contacts investigated, 133 (55.6%) had a positive TST result. Index patients were classified as long or short diagnosis delay (above or below the median). There was no significant difference in the number of infected close contacts between long and short delay index patients (Mann-Whitney U-test). A larger sample size, with more incentives for patients to participate and the use of other investigative tools could provide a better picture of the pattern of TB transmission among all contacts.
    Matched MeSH terms: Tuberculin Test
  5. Fulltext First evaluation of the performance of portable IGRA, QIAreach® QuantiFERON®-TB in intermediate TB incidence setting
    Aziz ZA, Noordin NM, Wan Mohd WM, Kasim MA
    PLoS One, 2023;18(2):e0279882.
    PMID: 36763619 DOI: 10.1371/journal.pone.0279882
    Diagnosis and treatment of tuberculosis infection (TBI) are the core elements of tuberculosis elimination. Interferon gamma release assays have advantages over the tuberculin skin test, although their implementation in low-resource settings is challenging. The performance of a novel digital lateral flow assay QIAreach® QuantiFERON®-TB (QIAreach QFT) against the QuantiFERON®-TB Gold Plus (QFT-Plus) assay was evaluated in an intermediate incidence setting (Malaysia) according to the manufacturer's instructions. Individuals aged 4-82 years, who were candidates for TB infection screening for contact investigation were prospectively recruited. On 196 samples, the QIAreach-QFT showed a positive percent agreement (sensitivity) was 96.5% (CI 87.9-99.6%), a negative percent agreement (specificity) 94.2% (CI 88.4% to 97.6%) and an overall percentage of agreement was 94.9% (95% CI 90.6-97.6%) with a Cohen's κ of 0,88. Out of 196, 5.6% (11/196) samples gave an error result on QIAreach-QFT and 4.1% (8/196) samples gave indeterminate result on QFT-plus. The TTR for QIAreach QFT positive samples varied from 210-1200 seconds (20 min) and significantly correlated with IFN-γ level of QFT-Plus. QIAreach QFT could be considered an accurate and reliable point-of-need test to diagnose TB infection helping to achieve the WHO End TB programme goals even in decentralised settings where laboratory expertise and infrastructure may be limited.
    Matched MeSH terms: Tuberculin Test
  6. COMPARATIVE TUBERCULIN TESTING IN MALAYA
    CHIN J
    Tubercle, 1964 Jun;45:114-24.
    PMID: 14161910
    Matched MeSH terms: Tuberculin*; Tuberculin Test*
  7. Testing Eurasian wild boar piglets for serum antibodies against Mycobacterium bovis
    Che' Amat A, González-Barrio D, Ortiz JA, Díez-Delgado I, Boadella M, Barasona JA, et al.
    Prev Vet Med, 2015 Sep 1;121(1-2):93-8.
    PMID: 26051843 DOI: 10.1016/j.prevetmed.2015.05.011
    Animal tuberculosis (TB) caused by infection with Mycobacterium bovis and closely related members of the M. tuberculosis complex (MTC), is often reported in the Eurasian wild boar (Sus scrofa). Tests detecting antibodies against MTC antigens are valuable tools for TB monitoring and control in suids. However, only limited knowledge exists on serology test performance in 2-6 month-old piglets. In this age-class, recent infections might cause lower antibody levels and lower test sensitivity. We examined 126 wild boar piglets from a TB-endemic site using 6 antibody detection tests in order to assess test performance. Bacterial culture (n=53) yielded a M. bovis infection prevalence of 33.9%, while serum antibody prevalence estimated by different tests ranged from 19% to 38%, reaching sensitivities between 15.4% and 46.2% for plate ELISAs and between 61.5% and 69.2% for rapid immunochromatographic tests based on dual path platform (DPP) technology. The Cohen kappa coefficient of agreement between DPP WTB (Wildlife TB) assay and culture results was moderate (0.45) and all other serological tests used had poor to fair agreements. This survey revealed the ability of several tests for detecting serum antibodies against the MTC antigens in 2-6 month-old naturally infected wild boar piglets. The best performance was demonstrated for DPP tests. The results confirmed our initial hypothesis of a lower sensitivity of serology for detecting M. bovis-infected piglets, as compared to older wild boar. Certain tests, notably the rapid animal-side tests, can contribute to TB control strategies by enabling the setup of test and cull schemes or improving pre-movement testing. However, sub-optimal test performance in piglets as compared to that in older wild boar should be taken into account.
    Matched MeSH terms: Tuberculin Test/veterinary*
  8. Fulltext Effects of repeated comparative intradermal tuberculin testing on test results: a longitudinal study in TB-free red deer
    Che-Amat A, Risalde MÁ, González-Barrio D, Ortíz JA, Gortázar C
    BMC Vet Res, 2016 Sep 05;12(1):184.
    PMID: 27596591 DOI: 10.1186/s12917-016-0825-2
    Diagnosing tuberculosis (TB) in farmed red deer (Cervus elaphus) is challenging and might require combining cellular and humoral diagnostic tests. Repeated skin-testing with mycobacterial purified protein derivatives (PPDs) might sensitize or desensitize the subjects to both kinds of diagnostic tools. We evaluated the effect of repeated (every 6 months) comparative tuberculin skin testing on skin test and ELISA responsiveness in farmed red deer hinds from a TB-free herd. Eighteen 8-month old hinds were inoculated with bovine and avian PPDs and the mitogen phytohaemagglutinin (PHA), as positive control and concurrently tested by ELISA for antibodies against avian (avian PPD, aPPD and protoplasmatic antigen 3, PPA3) and bovine antigens (bPPD and MPB70). Blood serum was also sampled three weeks after each skin testing round and tested for antibodies against aPPD and bPPD, in order to detect eventual antibody level boosts. Testing took place every six months from winter 2012 until winter 2015.
    Matched MeSH terms: Tuberculin Test/veterinary*
  9. Fulltext Prevalence of Latent Tuberculosis Infection Among Non-US-Born Persons by Country of Birth-United States, 2012-2017
    Collins JM, Stout JE, Ayers T, Hill AN, Katz DJ, Ho CS, et al.
    Clin Infect Dis, 2021 11 02;73(9):e3468-e3475.
    PMID: 33137172 DOI: 10.1093/cid/ciaa1662
    BACKGROUND: Most tuberculosis (TB) disease in the United States (US) is attributed to reactivation of remotely acquired latent TB infection (LTBI) in non-US-born persons who were likely infected with Mycobacterium tuberculosis in their countries of birth. Information on LTBI prevalence by country of birth could help guide local providers and health departments to scale up the LTBI screening and preventive treatment needed to advance progress toward TB elimination.

    METHODS: A total of 13 805 non-US-born persons at high risk of TB infection or progression to TB disease were screened for LTBI at 16 clinical sites located across the United States with a tuberculin skin test, QuantiFERON Gold In-Tube test, and T-SPOT.TB test. Bayesian latent class analysis was applied to test results to estimate LTBI prevalence and associated credible intervals (CrIs) for each country or world region of birth.

    RESULTS: Among the study population, the estimated LTBI prevalence was 31% (95% CrI, 26%-35%). Country-of-birth-level LTBI prevalence estimates were highest for persons born in Haiti, Peru, Somalia, Ethiopia, Vietnam, and Bhutan, ranging from 42% to 55%. LTBI prevalence estimates were lowest for persons born in Colombia, Malaysia, and Thailand, ranging from 8% to 13%.

    CONCLUSIONS: LTBI prevalence in persons born outside the US varies widely by country. These estimates can help target community outreach efforts to the highest-risk groups.

    Matched MeSH terms: Tuberculin Test
  10. Fulltext Prevalence and Factors Associated with Tuberculosis Treatment Success among TB/HIV Co-Infection in North-East Malaysia
    Jalal TMT, Abdullah S, Wahab FA, Dir S, Naing NN
    Malays J Med Sci, 2017 Dec;24(6):75-82.
    PMID: 29379389 DOI: 10.21315/mjms2017.24.6.9
    Background: One of the six strategies developed by WHO, in order to stop Tuberculosis (TB) is addressing TB/HIV high-risk groups. This study aimed to determine the prevalence of successful TB treatment and factors associated with TB treatment success among TB/HIV co-infection patients in North-East Malaysia.
    Methods: A cross-sectional study was carried out in the a-year period from 2003 to 2012 by reviewing TB/HIV records in all hospitals and health clinics. The outcome of interest was treatment success as defined by Ministry of Health (MOH) when the patients was cured or completed TB treatment.
    Results: Out of 1510 total TB/HIV co-infection cases, 27.9% (95% CI: 25.2, 30.6) of the patients were having treatment success. A majority of TB/HIV co-infection cases were male (91.1%). Fifty-eight percent the patients were drug addicts and 6% were having positive tuberculin tests. The multiple logistic regression revealed that male (OR: 0.39, 95% CI: 0.22, 0.71) and positive tuberculin test result (OR: 2.61, 95% CI: 1.63, 4.19) were significantly associated with the treatment success of TB/HIV co-infection patients. Other factors such as age, comorbid, sputum smear and x-ray findings were not significantly factors in this study.
    Conclusion: Female patients and those with negative tuberculin test should be emphasised for successful tuberculosis treatment.
    Matched MeSH terms: Tuberculin; Tuberculin Test
  11. Fulltext Tuberculin reactivity and subsequent development of tuberculosis in a cohort of student nurses
    Jeyakumar D
    Med J Malaysia, 1999 Dec;54(4):492-5.
    PMID: 11072468
    This retrospective study documents a strong correlation between tuberculin reactivity and the subsequent development of active tuberculosis in student nurses. 12% of the 25 student nurses with tuberculin reactions above 20 mm developed tuberculosis over a period of 2 years, compared to only 0.3% of the 341 student nurses with reactions of 20 mm or less. The implications of these findings for preventive therapy are discussed.
    Matched MeSH terms: Tuberculin Test*
  12. Fulltext Two cases of retinal vasculitis in ocular tuberculosis involving different parts of the vascular system
    Kok, Howe Sen, Tara, Mary Georg, Mae-Lynn, Catherine Bastion, Muhaya Hj Mohamad
    Medicine & Health, 2006;1(1):91-93.
    MyJurnal
    Two case reports of retinal vasculitis in presumptive ocular tuberculosis are presented. Case 1 is a 26-year-old Malay woman who had phlebitis with choroidal lesions and case 2 is a 27 year old Malay woman who had occlusive arteritis. Both subjects had positive Mantoux tests with negative systemic screen. Both responded clinically to anti-tuberculous therapy within days of commencing therapy. There was however concurrent increase in vitritis which decreased following anti-inflammatory doses of oral corticosteroids. These two cases represent a rare mode of presentation of ocular tuberculosis for which a high index of suspicion is needed. Multidrug anti-tuberculous therapy should be combined with oral corticosteroids for effective treatment.
    Matched MeSH terms: Tuberculin Test
  13. Mycobacterium tuberculosis complex in wildlife: Review of current applications of antemortem and postmortem diagnosis
    Lekko YM, Ooi PT, Omar S, Mazlan M, Ramanoon SZ, Jasni S, et al.
    Vet World, 2020 Sep;13(9):1822-1836.
    PMID: 33132593 DOI: 10.14202/vetworld.2020.1822-1836
    Tuberculosis (TB) is a chronic inflammatory and zoonotic disease caused by Mycobacterium tuberculosis complex (MTBC) members, which affects various domestic animals, wildlife, and humans. Some wild animals serve as reservoir hosts in the transmission and epidemiology of the disease. Therefore, the monitoring and surveillance of both wild and domestic hosts are critical for prevention and control strategies. For TB diagnosis, the single intradermal tuberculin test or the single comparative intradermal tuberculin test, and the gamma-interferon test, which is regarded as an ancillary test, are used. Postmortem examination can identify granulomatous lesions compatible with a diagnosis of TB. In contrast, smears of the lesions can be stained for acid-fast bacilli, and samples of the affected organs can be subjected to histopathological analyses. Culture is the gold standard test for isolating mycobacterial bacilli because it has high sensitivity and specificity compared with other methods. Serology for antibody detection allows the testing of many samples simply, rapidly, and inexpensively, and the protocol can be standardized in different laboratories. Molecular biological analyses are also applicable to trace the epidemiology of the disease. In conclusion, reviewing the various techniques used in MTBC diagnosis can help establish guidelines for researchers when choosing a particular diagnostic method depending on the situation at hand, be it disease outbreaks in wildlife or for epidemiological studies. This is because a good understanding of various diagnostic techniques will aid in monitoring and managing emerging pandemic threats of infectious diseases from wildlife and also preventing the potential spread of zoonotic TB to livestock and humans. This review aimed to provide up-to-date information on different techniques used for diagnosing TB at the interfaces between wildlife, livestock, and humans.
    Matched MeSH terms: Tuberculin; Tuberculin Test
  14. Changes in serum proteins, erythrocyte sedimentation rate and Mantoux tuberculin skin test reactivity in active tuberculosis
    Liam CK, Lim KH, Wong CMM
    JUMMEC, 1998;3:47-53.
    The records of 141 consecutive patients with proven tuberculosis (TB) were reviewed to examine for changes in their serum proteins, erythrocyte sedimentation rate (ESR) and tuberculin skin test reactivity. Hypoalbuminaemia was present in 73% of patients and hyperglobulinaemia was seen in 92% of patients. ESR showed a negative correlation with the serum albumin level but a positive correlation with the serum globulin level. In the case of pulmonary TB, ESR was higher in patients with radiologically more extensive disease. Tuberculin reactivity was reduced in patients who were older, those with more severe hypoalbuminaemia and those with disseminated TB. KEYWORDS: Albumin, erythrocyte sedimentation rate, globulin, tuberculin reactivity, tuberculosis
    Matched MeSH terms: Tuberculin; Tuberculin Test
  15. Fulltext Role of Mantoux test in the diagnosis of tuberculosis
    Loh KY
    Malays Fam Physician, 2011;6(2):85-86.
    PMID: 25606232 MyJurnal
    Mantoux test is a sensitive but non-specific in the diagnosis of active tuberculosis. The positive cut-off of 10 mm in a person without BCG and 15 mm with previous BCG is appropriate. The interpretation of Mantoux needs to be correlated to the patient’s clinical context. Mantoux test may have a role in assisting extrapulmonary tuberculosis and latent tuberculosis in children.
    Matched MeSH terms: Tuberculin Test
  16. Fulltext Influence of co-morbidity in the interpretation of tuberculin skin reactivity in multi-ethnic adult patients with tuberculosis
    Loh LC, Chan SK, Ch'ng KI, Tan LZ, Vijayasingham P, Thayaparan T
    Med J Malaysia, 2005 Oct;60(4):426-31.
    PMID: 16570703
    In the Malaysian setting of multi-ethnicity and high BCG coverage, interpretation of Tuberculin Skin Testing (TST) may be difficult. Between January 2001 and December 2003, a retrospective study on all adult patients with documented TST results treated for tuberculosis (TB) in chest clinics of two government hospitals was conducted to determine the reliability of TST and factors affecting its interpretation. One hundred and three patients [mean age (SD): 43 (17); male: 67%] were eligible for data collection: 72% and 57% of patients had positive TST results based on cut-off points of 10mm and 15mm respectively. The only significant univariate association with TST results was the severity of co-morbidity. A patient with co-morbidity score of 3 defined as those with any cancer, end-stage renal or liver disease, or HIV disease, was more likely to have a negative TST results [10mm cut-off point: Odd Ratio (95% CI) 6.6 (1.82 to 24.35), p = 0.003; 15mm cut-off point: 4.8 (1.21 to 18.95), p = 0.012]. A TST reading of 10mm had a higher sensitivity than 15mm as the cut-off point in diagnosing TB infection. Considering all possible confounding factors like ethnicity, prior BCG vaccination and TB burden in the population, severity of co-morbidity remains strongly predictive of a negative TST. Caution should be exercised in interpreting TST in these patients.
    Study site: Chest clinic, Hospital Seremban, Hospital Kuala Pilah, Negeri Sembilan, Malaysia
    Matched MeSH terms: Tuberculin Test*
  17. Fulltext Case series of ocular tuberculosis; the great masquerader
    Loh, Ui Lyn, Nadras, Indira, Yeong, Choo Mee, Nadarajah, Gaayathri, Fazilawati Qamarruddin, Shelina Oli Mohamed, et al.
    Journal of Biomedical and Clinical Sciences, 2018;3(2):1-5.
    MyJurnal
    Tuberculosis, an ancient disease, still thrives today as the leading infection caused by Mycobacterium tuberculosis. Diagnosis of ocular tuberculosis poses a great challenge due to the varied clinical presentations. We report 3 cases of primary ocular tuberculosis with varied presentations: conjunctival abscess, sclera-uveitis and occlusive vasculitis. There were no symptoms suggestive of pulmonary tuberculosis in all cases. All patients presented with acute, unilateral painful red eye. The first case had good visual acuity (VA) OD (6/9) with a swollen upper lid, localized perilimbal-hemorrhagic conjunctival swelling superiorly, keratic precipitates and mild anterior chamber reaction. The posterior segment was normal. The second case had a VA of 6/60 OD. There was presence of conjunctival injection, keratic precipitates, posterior synechiae and anterior chamber reaction of 1+. A few days later, there was a progression to vitritis OU and hyperemic optic disc OD with choroidal folds, cystoid macula edema and a positive T sign on B scan ultrasonography. The third case had VA of 6/6 OU, AC reaction of 2+ OD. There was multiple peripheral choroiditis with peripheral vasculitis seen in the posterior segment OU. Fundus fluorescein angiography (FFA) showed peripheral periphlebitis in all 4 quadrants OU. All 3 cases had positive Tuberculin Skin Test (Mantoux test) results which were more than 20mm. Anti-tuberculous treatment was promptly started and all patients showed significant clinical improvement. This case series highlights the diverse clinical presentations of ocular tuberculosis. A high clinical index of suspicion led to prompt initiation of anti-tuberculous therapy which resulted in good clinical outcomes for all cases.
    Matched MeSH terms: Tuberculin Test
  18. Fulltext Ocular Tuberculosis Initially Presenting as Central Retinal Vein Occlusion
    Mahyudin M, Choo MM, Ramli NM, Omar SS
    Case Rep Ophthalmol, 2010 Aug 02;1(1):30-35.
    PMID: 21116342
    A 23-year-old man presented with central retinal vein occlusion. The retinal haemorrhages worsened and signs of retinal vasculitis appeared later as vision dropped from 6/60 to Counting Fingers. No signs of systemic disease were observed. Routine Mantoux test and chest radiograph were negative for tuberculosis. Fundus flourescein angiogram confirmed presence of retinal vasculitis. Both systemic and topical corticosteroid therapy were ineffective. Polymerase chain reaction analysis of vitreous fluid showed presence of Mycobacterium tuberculosis. A full 6-month course of antituberculosis therapy was given and inflammation subsided. Vision improved to 3/60. This is a rare case of ocular tuberculosis without evidence of systemic infection, presenting first as a central retinal vein occlusion.
    Matched MeSH terms: Tuberculin Test
  19. Fulltext Prevalence of tuberculosis symptoms and latent tuberculous infection among prisoners in northeastern Malaysia
    Margolis B, Al-Darraji HA, Wickersham JA, Kamarulzaman A, Altice FL
    Int J Tuberc Lung Dis, 2013 Dec;17(12):1538-44.
    PMID: 24200265 DOI: 10.5588/ijtld.13.0193
    There are currently no routine screening procedures for active tuberculosis (TB) or latent tuberculous infection (LTBI) in Malaysian prisons.
    Matched MeSH terms: Tuberculin Test
  20. Fulltext Latent tuberculosis infection screening in foreign-born populations: a successful mobile clinic outreach model
    Morano JP, Zelenev A, Walton MR, Bruce RD, Altice FL
    Am J Public Health, 2014 Aug;104(8):1508-15.
    PMID: 24922157 DOI: 10.2105/AJPH.2014.301897
    OBJECTIVES: We evaluated the efficacy of a mobile medical clinic (MMC) screening program for detecting latent tuberculosis infection (LTBI) and active tuberculosis.
    METHODS: A LTBI screening program in a MMC in New Haven, Connecticut, used medical surveys to examine risk factors and tuberculin skin test (TST) screening eligibility. We assessed clinically relevant correlates of total (prevalent; n = 4650) and newly diagnosed (incident; n = 4159) LTBI from 2003 to 2011.
    RESULTS: Among 8322 individuals, 4159 (55.6%) met TST screening eligibility criteria, of which 1325 (31.9%) had TST assessed. Similar to LTBI prevalence (16.8%; 779 of 4650), newly diagnosed LTBI (25.6%; 339 of 1325) was independently correlated with being foreign-born (adjusted odds ratio [AOR] = 8.49; 95% confidence interval [CI] = 5.54, 13.02), Hispanic (AOR = 3.12; 95% CI = 1.88, 5.20), Black (AOR = 2.16; 95% CI = 1.31, 3.55), employed (AOR = 1.61; 95% CI = 1.14, 2.28), and of increased age (AOR = 1.04; 95% CI = 1.02, 1.05). Unstable housing (AOR = 4.95; 95% CI = 3.43, 7.14) and marijuana use (AOR = 1.57; 95% CI = 1.05, 2.37) were significantly correlated with incident LTBI, and being male, heroin use, interpersonal violence, employment, not having health insurance, and not completing high school were significantly correlated with prevalent LTBI.
    CONCLUSIONS: Screening for TST in MMCs successfully identifies high-risk foreign-born, Hispanic, working, and uninsured populations and innovatively identifies LTBI in urban settings.
    Study site: Mobile clinic, New Haven, Connecticut, United States
    Matched MeSH terms: Tuberculin Test/methods
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