title: Tuberculosis among foreign-born children in the state of Florida, 1993-1999: a re-emergence phase after a sustained decline?
abstract: OBJECTIVE
  To determine the temporal trend of tuberculosis disease among foreign-born children in the State of Florida.
  
  
  METHODS
  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.
  
  
  METHODS
  All cases of tuberculosis disease among children notified in the State of Florida between 1993 and 1999 inclusive.
  
  
  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.
authors: Department of Maternal and Child Health, University of Alabama at Birmingham, Alabama, USA. hsalihu@uab.edu
authors: Hamisu M
authors: HM
authors: Salihu
authors: Robyn
authors: R
authors: Spittle
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D004641:Emigration and Immigration; D005431:Florida / Q000453:epidemiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D016012:Poisson Distribution; D012044:Regression Analysis; D012307:Risk Factors; D014376:Tuberculosis / Q000453:epidemiology*