Table 4 Comparison of Symptom Clusters Between the Younger and Older Age Groups^a

Physical and cognitive fatigue symptom cluster

Lack of energy

0.880

0.743

Feeling drowsy

0.621

0.463

Nausea

0.430

−

Difficulty concentrating

0.401

0.541

Total number of symptoms in this cluster

4

3

Consistency^b

2/3

Respiratory symptom cluster

Difficulty breathing

1.049

0.965

Shortness of breath

0.824

0.878

Chest tightness

0.611

0.676

Cough

−

0.403

Problems with urination

−

0.402

Total number of symptoms in this cluster

3

5

Consistency^b

3/3

Psychological

symptom cluster

Worrying

0.792

0.812

Feeling sad

0.755

0.866

Feeling nervous

0.623

0.678

“I don’t look like myself”

0.520

−

Feeling irritable

0.512

0.628

Difficulty concentrating

0.436

0.437

Total number of symptoms in this cluster

6

5

Consistency^b

3/3

Hormonal

symptom cluster

Hot flashes

0.807

0.728

Sweats

0.788

0.783

Total number of symptoms in this cluster

2/2

2/2

Consistency^b

2/2

Chemotherapy-related toxicity symptom cluster

Problems with urination

0.621

0.418

Abdominal cramps

0.481

0.489

Numbness/tingling in hands/feet

0.466

−

Mouth sores

−

0.476

Total number of symptoms in this cluster

3

3

Consistency^b

1/2

Weight gain symptom cluster

Weight gain

0.942

0.902

Increased appetite

0.840

0.802

Total number of symptoms in this cluster

2

2

Consistency^b

2/2

Gastrointestinal

symptom cluster

Nausea

−

0.704

Weight loss

0.548

−

Lack of appetite

0.537

0.478

Vomiting

0.526

0.926

Total number of symptoms in this cluster

3

3

Consistency^b

0/2

Epithelial symptom cluster

Change in the way food tastes

0.709

0.612

Skin changes

0.494

0.679

Hair loss

0.468

0.540

“I don’t look like myself”

−

0.522

Difficulty swallowing

0.464

0.494

Mouth sores

0.437

−

Dizziness

−

0.479

Total number of symptoms in this cluster

5

6

Consistency^b

3/3