Table 1 Description of PROMs included in the content analysis

EORTC CAT Core Fatigue item bank

Single scale (34)

Last week

Four-point scale ranging from ‘not at all’ to ‘very much’

Cancer

T-scores

EORTC QLQ-FA12

Physical (5)

Emotional (3)

Cognitive (2)

Interference (1)

Support (1)

Last week

Four-point scale ranging from ‘not at all’ to ‘very much’

Cancer

0 – 100 

(sum scores with linear transformation)

EORTC QLQ-C30

Fatigue scale

Single scale (3)

Last week

Four-point scale ranging from ‘not at all’ to ‘very much’

Cancer

0 – 100 

(sum scores with linear transformation)

PROMIS Cancer Fatigue item bank v1.0

Single scale (54)

Last week

Five-point scale ranging from ‘Never’ to ‘Always’, ‘Not at all’ to ‘Very much’, or ‘None’ to ‘Very’

Cancer

T-scores

FACIT Fatigue Scale v4

Single scale (13)

Last week

Five-point Likert scale ranging from ‘Not at all’ to ‘Very much’

Cancer

0 – 52 

(sum score)

Brief Fatigue Inventory (BFI)

Single scale (9)

various versions

11-point scale ranging from ‘No fatigue’ to ‘As bad as you can imagine’ or ‘Does not interfere’ to ‘Completely interferes’

Generic

0 – 10 

(mean score)

Multidimensional Fatigue Inventory (MFI-20)

General (4)

Physical (4)

Reduced motivation (4)

Reduced activity (4)

Mental fatigue (4)

“Lately”

Five-point scale ranging from ‘yes, that is true’ to ‘no, that is not true’

Generic

4 – 20

(sum score)

NCI PRO-CTCAE fatigue items

Severity (1)

Interference (1)

Last week

Five-point Likert scales ranging from ‘None’ to ‘Very severe’ or ‘Not at all’ to ‘Very much’

Cancer

0 – 4

(raw item scores, separately)

Piper Fatigue Scale (PFS-12)

Behavioural/severity (3)

Affective meaning (3)

Sensory (3)

Cognitive/mood (3)

Past four weeks

11-point Likert scale ranging from ‘no fatigue’ to ‘worst fatigue possible’

Cancer

0 – 10

(mean score)