Effective Method Using a Stool in Cardiopulmonary Resuscitation (CPR) on Dialysis Chair

Table 4

The vertical displacements of the backrest with and without a stool for all dialysis chairs.

	Free		Fix		value	Decrease rate (%)
	Mean	SD	Mean	SD
Model 1	20.8	8.1	6.1	1.1	<0.01	70.9
Model 2	18.7	5.5	7.5	2.2	<0.01	59.8
Model 3	12.8	1.8	1.0	0	<0.01	92.2

Free: without a stool; fix: with a stool.