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Volume 9, Number 2—February 2003

Dispatch

Fluoroquinolone Resistance in Campylobacter jejuni Isolates in Travelers Returning to Finland: Association of Ciprofloxacin Resistance to Travel Destination

Antti Hakanen*†Comments to Author , Hannele Jousimies-Somer‡§1, Anja Siitonen‡, Pentti Huovinen*, and Pirkko Kotilainen†
Author affiliations: *National Public Health Institute, Turku, Finland; †Turku University Central Hospital, Turku, Finland; ‡National Public Health Institute, Helsinki, Finland; §Mehiläinen Hospital, Helsinki, Finland; 1Dr. Jousimies-Somer is deceased.

Main Article

Table 2

Rate ratios of travel-associated infections with ciprofloxacin-resistant Campylobacter jejuni isolatesa

Country Estimated no. of trips from Finland during the study monthsb No. of all isolates Speculative infection ratec Rate ratiod No. of ciprofloxacin-resistant isolates Speculative infection ratec by ciprofloxacin-resistant isolates Rate ratiod by ciprofloxacin-resistant isolates
Spain (incl. Canary Islands)
1,145,872
77
(0.1)
0.12 (0.08 to 0.17)
55
(0.05)
0.11 (0.07 to 0.16)d
Thailand
87,842
50
(0.6)
1
39
(0.44)
1e
India
27,591
23
(0.8)
1.46 (0.89 to 2.40)
11
(0.40)
0.90 (0.46 to 1.75)
China
25,073
12
(0.5)
0.84 (0.45 to 1.58)
8
(0.32)
0.72 (0.34 to 1.54)
Portugal 148,647 11 (0.1) 0.13 (0.07 to 0.25) 7 (0.05) 0.11 (0.05 to 0.24)e

aThe five most frequent countries of origin of ciprofloxacin-resistant C. jejuni isolates were included in this analysis.

bBased on the numbers of Finnish travelers to these countries; data collected from the reports of Statistics Finland.

cInfections per 1,000 trips. Since the total number of isolates from Finnish population was not studied, the rate is speculative but could be used to calculate comparable rate ratios.

dThailand as the reference country; 95% confidence intervals in parentheses.

eDifferences between Thailand and Spain, and Thailand and Portugal, are statistically significant (p<0.01).

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