Table 3.

Reliability, Central Tendency, and Variability of Scales of SF-36 Quality-of-Life Questionnaire of Breast Cancer Patients (Cronbach’s Alpha=0.84; N=169)

	Items	Alpha	Mean±SD
Physical functioning (PF)	10	0.887	51.57±29.01
Role limitations due to physical health (RF)	4	0.967	32.29±44.73
Role limitations due to emotional problems (RE)	3	0.982	36.29±47.40
Energy/fatigue (Vitality VT)	4	0.732	43.52±22.79
Emotional well-being (Mental Health MH)	5	0.680	60.83±20.03
Social functioning (SF)	2	0.777	62.06±32.27
Pain (Bodily Pain BP)	2	0.805	53.43±30.02
General health (GH)	5	0.433	54.66±17.89
Health change	1	—	43.79±29.22