Table 5.

Correlational Matrix of Key Variables (N = 151)

Variables	1	2	3	4	5	6	7	8	9	10	11	12
1. Age
2. Comorbidity	0.421^**
3. HD Vintage	0.031	−0.221^**
4. Treatment Control^a	0.156	0.000	0.086
5. Adherence to HD	0.297^**	0.123	0.005	−0.024
6. Adherence to Medications	0.227^**	0.066	0.133	−0.054	0.225^**
7. Adherence to Fluid	0.111	−0.014	−0.009	0.038	0.136	0.150
8. Adherence to Diet	−0.001	−0.023	−0.081	−0.171^*	0.162^*	0.207^*	0.303^**
9. IDWG for 4 Weeks	0.013	0.213^**	0.106	0.065	0.162^*	−0.044	−0.205^*	−0.141
10. Kt/V_urea, Single Pool	0.092	−0.142	0.257^**	0.095	0.169^*	0.154	−0.010	0.069	−0.246^**
11. Pre-HD Serum Phosphrus	−0.274^**	−0.096	−0.176^*	0.034	−0.154	−0.272^**	0.042	−0.055	0.178^*	−0.279^**
12. Pre-HD Serum Potassium	−0.224^**	−0.041	−0.023	−.064	−0.115	−0.020	−0.040	−0.051	0.221^**	−0.084	0.111
13. Post-HD SUN	−0.075	0.201^*	−0.249^**	0.077	−0.161^*	−0.120	−0.096	−0.106	0.416^**	−0.661^**	0.348^**	0.305^**

Treatment control = score of treatment control dimension among 7 dimensions of illness perception’s control dimension; co-morbidity = Charlson comorbidity scores were used; higher illness perception scores reflect stronger negative perceptions about illness; higher adherence scores reflect better adherence level.

Correlation is significant at the 0.05 level (2-tailed).

^**

Correlation is significant at the 0.01 level (2-tailed).