Table 4.

Mean annual expenses for social insurance funds and out-of-pocket payments per patient according to disease stages (I–IV) (€)

GOLD stage	Total mean cost per patient	Social insurance funds’ expenses	Out-of-pocket payments per patient
Stage I	408.23 (503.19)	313.46 (405.66)	94.77 (119.28)
Stage II	705.23 (596.79)	532.93 (482.02)	172.30 (131.69)
Stage III	1,408.59 (742.00)	1,118.02 (649.84)	290.57 (143.44)
Stage IV	2,041.89 (858.19)	1,659.11 (730.56)	382.78 (174.86)

Note: Data are presented as mean (SD).

Abbreviation: SD, standard deviation.