Table 1:Mortality of the two leading death cause in Greece during 1999-2012 in extreme cold days (and following seven consecutive days) in comparison with warm days (temperatures ranging between 15-20 °C).

Death cause Cold days (< 3 °C) Warm days (15-20 °C) P
Diseases of the nervous system and sense organs 292,811 212,345 < 0.001
Diseases of the respiratory system 150,089 110,648 0.001