A feasibility study to assess the validity of administrative data sources and self-reported information of breast cancer survivors

Table 5 Reliability of SF-36 form self-reported data

SF-36 Health Form Subscales	Breast cancer sample population						Israeli Adult Population		T-test Sig.
	Standardized Alpha Cronbach	Number of items	Corrected^a item correlation with own subscale		Mean score	SD	Mean score	SD
	Standardized Alpha Cronbach	Number of items	Range	Sig.	Mean score	SD	Mean score	SD
Bodily pain	0.9	2	0.9	<.001	63.7	23.9	71.6	29.8	.01
General health	0.9	5	0.4–0.8	<.001	49.0	31.0	62.9	23.8	<.001
Mental health	0.9	5	0.5–0.7	<.001	54.5	28.7	67.1	21.7	<.001
Physical functioning	0.9	10	0.1–0.8	<.001–0.376	59.8	40.0	77.3	26.6	<.001
Role emotional	1.0	3	1.0	<.001	50.7	50.1	81.1	35.7	<.001
Role physical	1.0	4	0.8–1.0	<.001	49.3	50.1	71.3	40.8	<.001
Social functioning	0.9	2	0.8	<.001	59.5	27.2	81.8	26.8	<.001
Vitality	0.9	4	0.7–0.9	<.001	39.3	25.8	56.9	22.8	<.001

Abbreviations: SF-36, 36-item short form, Sig significance, SD standard deviation
^a Correction refers to recoding per a scoring key [12]

ISSN: 2045-4015