D-R generated Ceftazidime-resistance rates beginning with years 1999, 2001, 2005, and 2009.

At = actual drug resistance rate; 1999 Ft(R%) = predicted infection rates between 1999–2012 based on the actual data from 1996–1998; 2001Ft(R%) = predicted infection rates between 2001–2012 based on the actual data from 1996–2000; 2005Ft(R%) = predicted infection rates between 2005–2012 based on the actual data from 1996–2004; 2009Ft(R%) = predicted infection rates between 2009–2012 based on the actual data from 1996–2008. The numbers above the underlined values were calculated and fitted to the model; the numbers below the underlined values were predicted based upon each fitted curve.