Table 4. Correlational analysis of clinical parameters and adherence scores using Pearson's and Spearman's correlation.

IDW: interdialytic body weight; HD: hemodialysis

Variables	Gender	Pre-dialysis phosphate levels	Pre-dialysis potassium levels	Interdialytic weight	HD adherence score	Medication adherence score	Fluid adherence score	Diet adherence score	Overall adherence score
Age	r :  0.043	r :  0.023	r :  -0.071	r :  0.060	r :  0.114	r :  0.007	r :  0.182*	r :  0.034	r :  0.140
	p :  0.641	p :  0.805	p :  0.444	p :  0.518	p :  0.217	p :  0.940	p :  0.048*	p :  0.717	p : 0.129
Gender	-	r :  0.045	r :  -0.154	r :  0.084	r :  -0.026	r :  0.032	r :  -0.068	r :  -0.075	r :  -0.162
	-	p :  0.63	p :  0.094	p :  0.363	p :  0.775	p :  0.734	p :  -0.461	p :  0.419	p :  0.079
Pre-dialysis phosphate levels	-	-	r :  0.093	r :  0.175	r :  0.122	r :  0.023	r :  0.134	r :  0.055	r :  0.104
	-	-	p :  0.316	p :  0.057	p :  0.186	p :  0.801	p :  0.146	p :  0.555	p :  0.259
Pre-dialysis potassium levels	-	-	-	r :  0.162	r :  -0.139	r :  -0.096	r :  -0.058	r :  -0.029	r :  -0.034
	-	-	-	p :  0.079	p :  0.133	p :  0.301	p :  0.533	p :  0.755	p :  0.716
IDW	-	-	-	-	r :  -0.311*	r :  -0.093	r :  -0.140	r :  -0.095	r :  -0.0270*
	-	-	-	-	p :  0.001*	p :  0.315	p :  0.130	p :  0.302	p :  0.003*
HD adherence score	-	-	-	-	-	r :  0.295*	r :  0.119	r :  0.338*	r :  0.671*
	-	-	-	-	-	p :  0.001*	p :  0.199	p :  0.000*	p :  0.000*
Medication adherence score	-	-	-	-	-	-	r :  0.208*	r :  0.207*	r :  0.507*
	-	-	-	-	-	-	p :  0.023*	p :  0.024*	p :  0.000*
Fluid adherence score	-	-	-	-	-	-	-	r :  0.324*	r :  0.438*
	-	-	-	-	-	-	-	p :  0.000*	p :  0.000*
Diet adherence score	-	-	-	-	-	-	-	-	r :  0.521*
	-	-	-		-	-	-	-	p :  0.000*