. 2014 May 19;10:887–895. doi: 10.2147/NDT.S55220

Table 2.

SDS inter-item correlations

SDS item/subscale	Baseline				Week 9
SDS item/subscale	Item 1	Item 2	Item 3	Item 4	Item 1	Item 2	Item 3	Item 4
Item 1: work/school
Item 2: social life	0.53^*				0.79^*
Item 3: family life/home responsibilities	0.54^*	0.62^*			0.76^*	0.77^*
Item 4: days lost	0.31^*	0.31^*	0.32^*		0.43^*	0.38^*	0.40^*
Item 5: days underproductive	0.38^*	0.23^*	0.31^*	0.35^*	0.61^*	0.50^*	0.54^*	0.48^*

Notes: Correlation coefficients involving items 4 or 5 are Spearman coefficients, and the remaining correlations are Pearson coefficients.

P<0.01.

Abbreviation: SDS, Sheehan Disability Scale.