  An effective model reproducing the equation of state of hadronic matter as
obtained in recent lattice QCD simulations and from hadron resonance gas data
is presented. The hadronic phase is described by means of an extended
Mott-Hagedorn resonance gas while the QGP phase is described by the extended
PNJL model. The dissociation of hadrons is obtained by including the state
dependent hadron resonance width. The model gives a quantitative estimate for
partial fractions of hadronic and partonic degrees of freedom above $T_c$.
