Operator gender differences in major mechanical complications after central line insertions: a subgroup analysis of a prospective multicentre cohort study

Table 2 Distribution of major mechanical complications between male and female operators

Major mechanical complications	Male operator, n = 5 149^a	Female operator, n = 3 053^a	P-value
Bleeding grade 3–4^b, n (%)	7 (0.14)	2 (0.07)	.56
Cardiac arrhythmia grade 3–4^c, n (%)	8 (0.16)	1 (0.03)	.20
Arterial catheterisation, n (%)	10 (0.19)	5 (0.16)	.96
Pneumothorax, n (%)	15 (0.29)	2 (0.07)	.06
Persistent nerve injury^d, n (%)	0 (0)	1 (0.03)	.79
Total, n (%)	40 (0.78)	11 (0.36)	.02

^aMissing data for operator gender, n = 384 (4.5%). No insertion with a major mechanical complication had missing data on operator gender
^bBleeding/haemothorax requiring invasive intervention or blood transfusion and bleeding with life-threatening consequences
^cSymptomatic arrhythmia requiring urgent medical intervention and arrhythmia with life-threatening consequences
^dNerve injury with clinical signs persisting > 72 h

ISSN: 1471-2253