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. 1998 Sep;42(9):2240–2244. doi: 10.1128/aac.42.9.2240

TABLE 3.

Relative risk of resistance to foscarnet or cidofovir while undergoing treatment with foscarnet or cidofovir, respectively, versus risk of resistance to ganciclovir while on ganciclovir

Drug Isolate source Relative risk 95% CI
Foscarnet Blood 1.62 0.59–4.40
Urine 1.50 0.27–8.28
Blood or urine 1.87 0.73–4.78
Cidofovir Blood 3.44 0.88–13.41
Urine 1.09 0.13–8.88
Blood or urine 2.28 0.75–6.95