CI	Confidence interval
CIt	Cumulative incidence for interval t
CM	Cutaneous melanoma
CsA	Cyclosporine A
CNI	Calcineurin inhibitor
GS	Glucocorticosteroids
IFN-γ	Interferon gamma
IL-2	Interleukin 2
IL-4	Interleukin 4
IRt	Incidence rate for interval t
MPA	Mycophenolic acid (administered as mycophenolate mofetil [MMF] or mycophenolate sodium [MPS])
NF-AT	Nuclear factor of activated T cells
NMSC	Non-melanoma skin cancer
PNCR	Polish National Cancer Registry
PNHF	Polish National Health Fund
RD	Risk difference
RR	Relative risk
SIR	Standardized incidence ratio
TAC	Tacrolimus
TNF-α	Tumor necrosis factor alpha