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Pediatrics |

The Association of Exposure to Second Hand Smoke and Other Social Factors to Tuberculosis in Filipino Children

Mariannebelle Tablante; Milagros Bautista; Dulce Sy; Maria Encarnita Limpin
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Philippine Heart Center, Quezon City, Philippines


Chest. 2014;146(4_MeetingAbstracts):709A. doi:10.1378/chest.1993690
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Abstract

SESSION TITLE: Pediatric Medicine Posters

SESSION TYPE: Original Investigation Poster

PRESENTED ON: Wednesday, October 29, 2014 at 01:30 PM - 02:30 PM

PURPOSE: Exposure to second hand smoke is a major health concern worldwide. It predisposes the exposed child to a gamut of respiratory infections, including tuberculosis. This study aimed to determine the relationship of exposure to second hand smoke and other social factors to various manifestations and outcomes of tuberculosis in Filipino school children. It also aimed to determine the prevalence of second hand smoke exposure of the children in the study.

METHODS: This is a prospective cohort study done in three schools in the Philippines from October 2013-March 2014. Second hand smoke exposure, socioeconomic class and overcrowding in the household were asked. Tuberculin skin testing and chest xray were done on all subjects. They were classified based on the Philippine Pediatric Society TB consensus to have TB exposure, TB infection or TB disease.

RESULTS: A total of 130 students qualified for inclusion in the study. Fifty seven out of the 130 subjects (44%) reported exposure to second hand smoke. Males, middle socioeconomic class, overcrowding and public school students had more report of second hand smoke exposure. TB exposure and TB disease were seen with a higher prevalence among students exposed to second hand smoke. Belonging to the middle socioeconomic class was statistically significant (p=0.034) to predict TB infection. Overcrowding is a factor for all outcomes of tuberculosis.

CONCLUSIONS: There s a proportional percentage of Filipino children exposed to second hand smoke (44%) but this has decreased compared to aa previous local study; however, this does not diminish the risk of TB exposure and disease, noted to have increased prevalence with second hand smoke exposure. This is consistent with earlier findings linking exposure to secondhand smoke exposure and tuberculosis. Belonging to the middle socioeconomic class was considered significant (p= 0.034) in acuiring a TB infection. Overcrowding is a strong variable predisposing to all outcomes of tuberculosis.

CLINICAL IMPLICATIONS: There is a need to decrease second hand smoke exposure among children as it predisposes them to TB exposure and disease. Efforts should also be done to avoid overcrowding in the household to decrease transmission of tuberculosis.

DISCLOSURE: The following authors have nothing to disclose: Mariannebelle Tablante, Milagros Bautista, Dulce Sy, Maria Encarnita Limpin

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