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We investigated subjects' responses to a synthesized talking face displayed on a computer screen in the context of a questionnaire study. Compared to subjects who answered questions presented via text display on a screen, subjects who answered the same questions spoken by a talking face spent more time, made fewer mistakes, and wrote more comments, When we(More)
OBJECTIVE To identify risk factors associated with default, failure and death among tuberculosis patients treated in a newly implemented DOTS programme in South India. DESIGN Analysis of all patients registered from May 1999 through April 2000. A community survey for active tuberculosis was underway in the area; patients identified in the community survey(More)
SETTING Tiruvallur District, south India. OBJECTIVES To examine gender differences in tuberculosis among adults aged >14 years with respect to infection and disease prevalence, health care service access, care seeking behaviour, diagnostic delay, convenience of directly observed treatment (DOT), stigma and treatment adherence. METHODS Data were(More)
OBJECTIVE To identify risk factors associated with relapse among cured tuberculosis (TB) patients in a DOTS programme in South India. DESIGN Sputum samples collected from a cohort of TB patients registered between April 2000 and December 2001 were examined by fluorescence microscopy for acid-fast bacilli and by culture for Mycobacterium tuberculosis at 6,(More)
OBJECTIVE To quantify the association between biomass fuel usage and sputum-positive pulmonary tuberculosis. METHODOLOGY A tuberculosis prevalence survey was conducted in a random sample of 50 rural units (villages) and three urban units in the Tiruvallur district of Tamilnadu, India during the period 2001-2003. Additional data regarding exposure to(More)
OBJECTIVE To estimate survival probabilities and identify risk factors for death of tuberculosis (TB) patients during treatment period. METHODS TB patients registered during May 1999 to December 2004 from a rural TB unit (TU) with a population of 580,000 in Tiruvallur district, South India, formed study population. Life table and Cox's regression methods(More)
Sixty-five patients with angiodysplasia were studied: 42 (64.6%) had normal renal function and 23 (35.4%) had renal insufficiency, defined as serum creatinine consistently greater than 1.5 mg/dl. Comparison of results in the two groups showed that there were no significant differences in the mode of presentation or anatomic distribution of angiodysplasia.(More)
The protective efficacy of BCG was studied for over 15 years, from 1968, in South India. A secondary analysis of data was performed to investigate the relationship between Bacille Calmette-Guérin (BCG) and tuberculosis (TB) disease and between BCG and positive tuberculin skin test for different time periods among children aged less than 10 years. A(More)
Twenty-seven patients with Crohn's disease were studied for the presence and location of activity by both early (4 h) and delayed (18-24 h) indium 111 leukocyte imaging. The results were compared with other parameters of disease activity including Crohn's disease activity index, barium studies, and endoscopy. There was a correlation between early images and(More)
OBJECTIVE To determine the baseline prevalence of culture-positive and smear-positive tuberculosis and the annual risk of tuberculous infection (ARTI) in a community in south India where DOTS is being implemented. METHODS Using cluster sampling, 50 rural panchayats (villages) and three urban units in Tiruvallur district were selected randomly. All adults(More)