Cost-effectiveness-analysis of ultrasound guidance for central venous catheterization compared with landmark method: a decision-analytic model

Table 1 Clinical input data

Ultrasound guidance	Probabilities of events (95% CI)	Reference
Failure on the first attempt	0.164 [0.143, 0.183]	[3]
Failure on the second attempt	0.049 [0.031, 0.067]	[3]
Total complications on the first attempt	0.029 [0.019, 0.040]	[3]
Total complications on the second attempt	0.041 [0.029, 0.053]	[3, 9]
Total complications on the third attempt	0.047 [0.034, 0.059]	[3, 9]
Arterial puncture^a	0.015 [0.010, 0.021]	[3]
Landmark method
Failure on the first attempt	0.376 [0.356, 0.395]	[3]
Failure on the second attempt	0.166 [0.138, 0.193]	[3]
Total complications on the first attempt	0.114 [0.096, 0.132]	[3]
Total complications on the second attempt	0.156 [0.136, 0.176]	[3, 9]
Total complications on the third attempt	0.177 [0.156, 0.197]	[3, 9]
Arterial puncture^a	0.081 [0.069, 0.093]	[3]

ISSN: 1471-2253