Health and Quality of Life Outcomes

Table 3 Inter-item polychoric correlation analysis and item-total Spearman’s rho correlation (n = 1286)

From: Dimensionality and psychometric analysis of DLQI in a Brazilian population

	q1	q2	q3	q4	q5	q6	q7	q8	q9	q10
q1		0.55	0.64	0.53	0.59	0.35	0.45	0.36	0.38	0.51
q2			0.79	0.67	0.78	0.54	0.45	0.57	0.55	0.56
q3				0.74	0.87	0.63	0.61	0.62	0.61	0.65
q4					0.76	0.61	0.48	0.57	0.58	0.58
q5						0.71	0.58	0.66	0.62	0.67
q6							0.41	0.56	0.53	0.59
q7								0.47	0.49	0.52
q8									0.73	0.54
q9										0.61
DLQI-BRA	0.66	0.79	0.82	0.73	0.82	0.56	0.57	0.59	0.54	0.59

All correlations produced p-values < 0.01

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