Reliability of intra-atrial ECG method of insertion of central venous line through right internal jugular vein when compared to formula and radiological landmark method: a prospective randomized study

Ain-Shams Journal of Anesthesiology

Table 5 ECG Vs landmark (post hoc test)

CVC tip position			Group		Total	P
CVC tip position			ECG	Landmark	Total	P
	Within 2 cm above junction	Count	23	25	48	0.188
	Within 2 cm above junction	% within group	76.7%	83.3%	80.0%
	Junction-within 1 cm below junction	Count	7	3	10
	Junction-within 1 cm below junction	% within group	23.3%	10.0%	16.7%
	> 1 below junction	Count	0	2	2
	> 1 below junction	% within group	0.0%	6.7%	3.3%
Total		Count	30	30	60
Total		% within group	100.0%	100.0%	100.0%