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Volume 14, Number 10—October 2008

Dispatch

Decreased Tuberculosis Incidence and Declining Clustered Case Rates, Madrid

Jesús Iñigo, Araceli Arce, Elia Palenque, Darío García de Viedma, and Fernando ChavesComments to Author 
Author affiliations: Consejería de Sanidad Comunidad de Madrid, Madrid, Spain (J. Iñigo, A. Arce); Hospital 12 de Octubre, Madrid (E. Palenque, F. Chaves); Hospital Gregorio Marañón, Madrid (D. Garcia de Viedma); Centro de Investigación Biomédica en Red Enfermedades Respiratorias, Madrid (D. Garcia de Viedma);

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Table 2

Overall and clustered tuberculosis case rates during 2 periods in 3 urban districts of Madrid, Spain*

Characteristic Case rate/100,000 persons†
Overall p value
Clustered p value
Nonclustered p value
All cases
Period 1 30.2 <0.001 7.0 <0.001 8.6 0.45
Period 2
25.7


4.4


9.3

Gender
Male
Period 1 43.5 0.01 9.4 0.08 11.9 0.91
Period 2 34.8 6.6 12.0
Female
Period 1 18.4 0.70 4.8 0.02 5.6 0.26
Period 2
17.4


2.4


6.9

Age, y
<35
Period 1 28.4 0.25 8.4 0.03 5.4 0.007
Period 2 24.9 5.2 9.4
35–64
Period 1 30.2 0.11 5.6 0.41 10.5 0.28
Period 2 24.8 4.3 8.2
>64 y
Period 1 32.4 0.52 4.6 0.16 12.5 0.81
Period 2
28.9


2.8


11.4

Nationality
Spanish-born
Period 1 29.9 <0.001 7.2 <0.001 8.6 0.04
Period 2 20.0 3.9 6.3
Foreign-born
Period 1 40.0 0.12 1.8 0.23 9.1 0.02
Period 2 58.7 7.3 26.6

*Period 1, 1997–1999; period 2, 2002–2004. All rates (overall, clustered, and nonclustered) refer to average incidence rates/100,000 persons during per the 3-year study period.
†Overall rates refer to all tuberculosis cases. Clustered and nonclustered case rates were calculated only in cases with restriction fragment length polymorphism analysis.

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