Table 2.

The rank frequency of fatigue severity as assessed by FIS (Fatigue Impact Scale).

FIS Rank	FIS descriptive	FIS scoring	Results (n=)
0	No fatigue	0–10	16
1	Mild	10–37	31
2	Moderate	38–79	43
3	Severe	80–119	38
4	Very severe	129–160	4