Skip to main content

Table 3 Distribution of predefined variables between male and female operators

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

Predefined variables

Male operator, n = 5 149a

Female operator, n = 3 053a

P-value

Patient BMI, mean (SD)

27 (6.0)

27 (5.8)

.46

BMI < 20, n (%)

399 (7.8)

227 (7.5)

.61

Patient age, mean (SD)

66 (15)

66 (16)

.06

Coagulopathyb, n (%)

727 (14)

418 (14)

.59

Positive pressure ventilation, n (%)

2931 (57)

1861 (61)

 < .001

Limited operator experiencec, n (%)

866 (17)

873 (29)

 < .001

 > 1 skin puncture, n (%)

753 (15)

479 (16)

.19

Ultrasound-guided, n (%)

4909 (95)

2999 (98)

 < .001

Insertion at nightd, n (%)

637 (12)

398 (13)

.38

Catheter bore size ≥ 9 Fr, n (%)

914 (18)

439 (14)

 < .001

Internal jugular vein, n (%)

4158 (81)

2743 (90)

 < .001

Subclavian vein, n (%)

864 (17)

258 (8.5)

 < .001

Femoral vein, n (%)

68 (1.3)

37 (1.2)

.67

  1. aMissing data for operator gender, n = 384 (4.5%)
  2. bProthrombin time international normalised ratio > 1.8, activated partial thromboplastin time > 1.3 × normal value (> 43 s), or platelet count < 50 × 109/L
  3. c< 100 or ≥ 100 individual central line insertions in the chosen vein
  4. dCatheter insertion between 21:00 and 07:00
Back to article page

BMC Anesthesiology

ISSN: 1471-2253

Contact us