Cognitive impairment in different hemodialysis techniques

Middle East Current Psychiatry

Table 6 Linear regression for prediction of BDI-II change

	β	T	p-value
Constant	11.228	3.636	.001
Groups	−6.498	−3.198	.003
Change in Beck score	−.804	−.954	.346
HB change	−.005	−1.177	.247
Ferritin change	−.051	−.554	.583
Tsat change	−4.179	−3.265	.002
Ca change	−.188	−.253	.802
PO4 change	.001	.374	.710
PTH. change	4.750	1.324	.194
R²=0.366
BDI-II change = 11.23−6.49Groups − 4.18Ca change

Cooling group coded (1), exercise group (2), education level coded (0 = illiterate and primary education, 1 = secondary education, 2 = university education or higher)