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Tuberculosis in Mexico and the USA, Comparison of Trends Over Time 1990-2010.

Hernández-Garduño E, Mendoza-Damián F, Garduño-Alanís A, Ayón-Garibaldo S - Tuberc Respir Dis (Seoul) (2015)

Bottom Line: In Mexico, no clear trend was found over time for cases.The incidence decreased 7.3% and 6.8%, respectively.The inverse association between number of contacts examined per state and incidence rates in Mexico underscore the importance of reinforcing and improving contact investigations with the likely translation of a decrease of TB incidence at a higher rate.

View Article: PubMed Central - PubMed

Affiliation: Unidad de Enseñanza e Investigación, Hospital Mónica Pretelini Sáenz, Instituto de Salud del Estado de México, Toluca, Estado de México, México.

ABSTRACT

Background: The aim was to compare tuberculosis trends in Mexico and United States and to evaluate Mexican diagnostic methods and contact investigation.

Methods: Retrospective comparative study of tuberculosis cases and incidence rates between both countries (1990-2010). Diagnostic methods and contact investigations were also evaluated for Mexico. Estimates were obtained from official websites.

Results: In Mexico, no clear trend was found over time for cases. Pulmonary (PTB) and all forms of tuberculosis (AFTB) incidence decreased 2.0% annually. There was a negative correlation between the mean contacts examined per case and AFTB incidence (r(2)=-0.44, p=0.01) with a 33% reduction in AFTB incidence. In United States, PTB and AFTB cases have been decreasing 6.0% and 5.6% annually, respectively. The incidence decreased 7.3% and 6.8%, respectively.

Conclusion: The incidence of tuberculosis in Mexico is decreasing slightly over time at 2% annually. In the United States, cases and incidence rates have been decreasing at a higher rate (5% to 7% annually). The inverse association between number of contacts examined per state and incidence rates in Mexico underscore the importance of reinforcing and improving contact investigations with the likely translation of a decrease of TB incidence at a higher rate.

No MeSH data available.


Related in: MedlinePlus

Incidence rates of pulmonary and all forms of tuberculosis (TB) in Mexico and the United States, 1990-2010. *Pulmonary cases for the United States were not available from 1990 to 1992.
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Figure 1: Incidence rates of pulmonary and all forms of tuberculosis (TB) in Mexico and the United States, 1990-2010. *Pulmonary cases for the United States were not available from 1990 to 1992.

Mentions: Compared to Mexican estimates, assessing changes over time shows a clear reduction in the number of cases and incidence rates in the United States (Table 1, Figure 1). The absolute percent change from 1990 to 2010 (APC-1990-2010) of the number of pulmonary TB cases (PTB) in Mexico increased 25.7% (12,242 cases in 1990 to 15,384 in 2010) with an annual mean increase of 1.5%; however, the change over time was not statistically significant (parameter estimated by GLM -0.0076, p=0.09).


Tuberculosis in Mexico and the USA, Comparison of Trends Over Time 1990-2010.

Hernández-Garduño E, Mendoza-Damián F, Garduño-Alanís A, Ayón-Garibaldo S - Tuberc Respir Dis (Seoul) (2015)

Incidence rates of pulmonary and all forms of tuberculosis (TB) in Mexico and the United States, 1990-2010. *Pulmonary cases for the United States were not available from 1990 to 1992.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4499593&req=5

Figure 1: Incidence rates of pulmonary and all forms of tuberculosis (TB) in Mexico and the United States, 1990-2010. *Pulmonary cases for the United States were not available from 1990 to 1992.
Mentions: Compared to Mexican estimates, assessing changes over time shows a clear reduction in the number of cases and incidence rates in the United States (Table 1, Figure 1). The absolute percent change from 1990 to 2010 (APC-1990-2010) of the number of pulmonary TB cases (PTB) in Mexico increased 25.7% (12,242 cases in 1990 to 15,384 in 2010) with an annual mean increase of 1.5%; however, the change over time was not statistically significant (parameter estimated by GLM -0.0076, p=0.09).

Bottom Line: In Mexico, no clear trend was found over time for cases.The incidence decreased 7.3% and 6.8%, respectively.The inverse association between number of contacts examined per state and incidence rates in Mexico underscore the importance of reinforcing and improving contact investigations with the likely translation of a decrease of TB incidence at a higher rate.

View Article: PubMed Central - PubMed

Affiliation: Unidad de Enseñanza e Investigación, Hospital Mónica Pretelini Sáenz, Instituto de Salud del Estado de México, Toluca, Estado de México, México.

ABSTRACT

Background: The aim was to compare tuberculosis trends in Mexico and United States and to evaluate Mexican diagnostic methods and contact investigation.

Methods: Retrospective comparative study of tuberculosis cases and incidence rates between both countries (1990-2010). Diagnostic methods and contact investigations were also evaluated for Mexico. Estimates were obtained from official websites.

Results: In Mexico, no clear trend was found over time for cases. Pulmonary (PTB) and all forms of tuberculosis (AFTB) incidence decreased 2.0% annually. There was a negative correlation between the mean contacts examined per case and AFTB incidence (r(2)=-0.44, p=0.01) with a 33% reduction in AFTB incidence. In United States, PTB and AFTB cases have been decreasing 6.0% and 5.6% annually, respectively. The incidence decreased 7.3% and 6.8%, respectively.

Conclusion: The incidence of tuberculosis in Mexico is decreasing slightly over time at 2% annually. In the United States, cases and incidence rates have been decreasing at a higher rate (5% to 7% annually). The inverse association between number of contacts examined per state and incidence rates in Mexico underscore the importance of reinforcing and improving contact investigations with the likely translation of a decrease of TB incidence at a higher rate.

No MeSH data available.


Related in: MedlinePlus