Transient ischemic attack incidence in joinville, Brazil, 2010: a population-based study.
OBJECTIVE
There are scarce data on transient ischemic attack incidence in low- and middle-income countries. We aimed to measure transient ischemic attack incidence and the distribution of the ABCD2 risk score in Joinville, Brazil.


METHODS
In 2009 to 2010, using a multiple overlapping sources, we ascertained all first ever probable and definite transient ischemic attacks.


RESULTS
We recorded 74 definite and probable transient ischemic attacks. The crude incidence was 15 (12-18) per 100 000 population. Age adjusted to European population the incidence was 28 (22-35). One fourth was in the higher risk of stroke by the ABCD2 scale.


CONCLUSIONS
The transient ischemic attack incidence in Joinville, Brazil, is lower than other well-designed studies. New studies could clarify whether the measured rates were due to underascertainment or reflect a truly low incidence.
Placido O. Oliveira, 1244, CEP 89201700, Joinville, SC, Brazil.
Patricia G
PG
Fonseca
Pedro A K
PA
Weiss
Rodrigo
R
Harger
Carla H C
CH
Moro
Alexander L
AL
Longo
Anderson R R
AR
Gonçalves
William N
WN
Whiteley
Norberto L
NL
Cabral
D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002545:Brain Ischemia / Q000453:epidemiology*; D001938:Brazil / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D020521:Stroke / Q000453:epidemiology*