Hamisu M Salihu1, Robyn Spittle. 1. Department of Maternal and Child Health, University of Alabama at Birmingham, Alabama, USA. hsalihu@uab.edu
Abstract
STUDY OBJECTIVE: To determine the temporal trend of tuberculosis disease among foreign-born children in the State of Florida. DESIGN AND SETTING: Descriptive population-based study on data obtained from the Tuberculosis Control and Surveillance Program in the State of Florida. We employed Poisson assumption to derive estimates for rates of tuberculosis among US-born and foreign-born children in the studied population. We also applied linear and non-linear regression equations to describe the best trajectories for observed temporal trends in incidence cases of the disease. PATIENTS: All cases of tuberculosis disease among children notified in the State of Florida between 1993 and 1999 inclusive. MAIN RESULTS: The incidence rate of TB over the study period was five times higher among foreign-born children (11.3 per 10(5); CI = 8.0-14.6 per 10(5)) as compared to US-born (1.7 per 10(5); CI = 0.8-4.2 per 10(5)). Whereas, new cases of TB among US-born children have continuously and significantly dropped throughout the period of study, our data indicated that the decline achieved from 1993 to 1996 among foreign-born children has ceased, and a resurgence of tuberculosis in this population was apparent. CONCLUSIONS: Our data tend to suggest a re-emergence of tuberculosis among foreign-born children in the State of Florida as from 1997 after several years of decline. There is a need for a more in-depth investigation to elucidate and address causes responsible for the resurgence if the current battle to eliminate tuberculosis from the State is to succeed.
STUDY OBJECTIVE: To determine the temporal trend of tuberculosis disease among foreign-born children in the State of Florida. DESIGN AND SETTING: Descriptive population-based study on data obtained from the Tuberculosis Control and Surveillance Program in the State of Florida. We employed Poisson assumption to derive estimates for rates of tuberculosis among US-born and foreign-born children in the studied population. We also applied linear and non-linear regression equations to describe the best trajectories for observed temporal trends in incidence cases of the disease. PATIENTS: All cases of tuberculosis disease among children notified in the State of Florida between 1993 and 1999 inclusive. MAIN RESULTS: The incidence rate of TB over the study period was five times higher among foreign-born children (11.3 per 10(5); CI = 8.0-14.6 per 10(5)) as compared to US-born (1.7 per 10(5); CI = 0.8-4.2 per 10(5)). Whereas, new cases of TB among US-born children have continuously and significantly dropped throughout the period of study, our data indicated that the decline achieved from 1993 to 1996 among foreign-born children has ceased, and a resurgence of tuberculosis in this population was apparent. CONCLUSIONS: Our data tend to suggest a re-emergence of tuberculosis among foreign-born children in the State of Florida as from 1997 after several years of decline. There is a need for a more in-depth investigation to elucidate and address causes responsible for the resurgence if the current battle to eliminate tuberculosis from the State is to succeed.
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