Table 3 Factor-loaded values and descriptions of breast Cancer Comprehensive Frailty Scale (n = 205)

Factor 1: Deterioration of body and mobility

0.82

(0.78, 0.85)

My ability to perform daily tasks has become poor

I have nutrition-related health problems (e.g., loss of appetite, nausea, vomiting)

I have sleep-related problems (e.g., difficulty falling asleep, restless sleep, or excessive sleep)

I feel tired or have no energy

I have more diseases or health problems than people of the same age (e.g., chronic illness, pain, hearing loss, or poor vision)

I go out less often than I did the year before

Factor 2: Negative emotions

0.92

(0.90, 0.94)

I feel nervous, anxious or on edge

I can’t stop or control worrying

I had little interest or pleasure in doing things

I feel down, depressed, or hopeless

I am a failure or have let yourself or your family down?

Factor 3: Cognitive impairment

0.87

(0.84, 0.89)

I can’t tell the date, name of a person or place

I have trouble concentrating on things, such as reading the newspaper or watching television

I have trouble adding or subtracting calculations

I often have trouble understanding what people are saying

I feel that my memory is not as good as it should be