Authors: Suggaravetsiri, P.¹; Yanai, H.²; Chongsuvivatwong, V.³; Naimpasan, O.⁴; Akarasewi, P.⁵

Source: The International Journal of Tuberculosis and Lung Disease, Volume 7, Supplement 3, December 2003 , pp. S424-S431(8)

Publisher: International Union Against Tuberculosis and Lung Disease

Abstract:

SETTING: Combined hospital-based and home visit, Chiang Rai, Thailand.

OBJECTIVE: To describe the results of screening of tuberculosis (TB) and HIV infection among household contacts of TB patients in an area endemic for HIV.

DESIGN: Consecutive new smear-positive TB patients were interviewed and their household contacts were screened for TB including tuberculin skin test (TST), chest radiography, and sputum examination. Voluntary HIV testing and counseling was also performed.

RESULTS: Of 499 pulmonary TB index cases, 197 (39.5%) were HIV-positive; 1200 household contacts were screened for TB and 890 (74.2%) agreed to HIV testing. The prevalence of TST induration ≥10 mm and active TB among household contacts of HIV-positive pulmonary TB cases were 46.2% (225/487) and 2.9% (14/490), and among household contacts of HIV-negative TB cases were 62.1% (438/705) and 4.4% (31/710), respectively. Higher HIV prevalence was found among contacts of HIV-positive TB patients than among household contacts of HIV-negative TB index cases (52/376, 13.8% vs. 13/514, 2.5%) (P < 0.001). Spouses of HIV-positive TB cases had the highest HIV prevalence (36/74, 48.6%). Among the household contacts who were HIV-positive, 9.5% (7/74) had active TB.

CONCLUSION: Integrated counseling and screening for TB and HIV should be provided for household contacts of TB patients in an HIV endemic area.

Keywords: tuberculosis; household contact; screening; HIV; Thailand

Document Type: Regular paper

Affiliations: 1: TB/HIV Research Project, Research Institute of Tuberculosis (RIT), Chiang Rai, Thailand; Faculty of Public Health, Khon Kaen University, Khon Kaen, Thailand; and the Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, Hat Jai, T 2: TB/HIV Research Project, Research Institute of Tuberculosis (RIT), Chiang Rai, Thailand; and the Research Institute of Tuberculosis (RIT), Tokyo, Japan 3: Epidemiology Unit, Faculty of Medicine, Prince of Songkla University, Hat Jai, Thailand 4: TB/HIV Research Project, Research Institute of Tuberculosis (RIT), Chiang Rai, Thailand 5: Tuberculosis Division, Ministry of Public Health, Bangkok, Thailand

Publication date: 2003-12-01

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