BMC Nephrology

Table 5 Spearman’s rank correlation coefficient (original questions vs. three SF-36 scores, and original questions vs. TLKV)

From: Quality of life of patients with ADPKD—Toranomon PKD QOL study: cross-sectional study

	PCS		MCS		RCS		TLKV
Question	r_s	p	r_s	P	r_s	P	r_s	P
Q1	0.313	<0.001	0.127	NS	0.198	<0.005	−0.189	<0.05
Q2	0.366	<0.001	0.090	NS	0.337	<0.001	−0.148	NS
Q3	0.450	<0.001	0.357	<0.001	0.306	<0.001	−0.328	<0.001
Q4	0.235	0.001	0.388	<0.001	0.210	<0.005	0.044	NS
Q5	0.274	<0.001	0.379	<0.001	0.133	NS	−0.092	NS
Q6	0.189	<0.05	0.135	NS	0.179	<0.05	0.066	NS
Q7	0.290	<0.001	0.267	<0.001	0.126	NS	−0.072	NS
Q8	−0.009	NS	0.084	NS	−0.009	NS	0.077	NS
Q9	0.116	NS	0.037	NS	0.003	NS	−0.148	NS
Q10	0.007	NS	0.010	NS	0.004	NS	0.117	NS
Q11	0.162	<0.05	0.095	NS	0.163	<0.05	−0.030	NS
Q12	0.266	<0.001	0.163	<0.05	0.017	NS	−0.077	NS
Pain	−0.582	<0.001	−0.437	<0.001	−0.193	<0.005	−0.083	NS

r_s: Spearman’s rank correlation coefficient, NS: not significant.

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