Table 1 Participant characteristics.

From: Augmented reality guidance improves accuracy of orthopedic drilling procedures

 

Student

Trainee

Surgeon

P-value

Mean age in years

(SD, Min–Max)

24.3

(1.03, 23–26)

29.5

(2.17, 26–32)

43.7

(8.04, 32–53)

p < 0.001

Sex

Male

5

4

2

χ2 (2, n = 18) = 3.27

p = 0.19

Female

1

2

4

Experience in bone drilling

None

4

0

0

χ2 (6, n = 18) = 16.67

p = 0.011

Some

2

2

0

Considerable

0

4

5

Very experienced

0

0

1

Use of HoloLens before

Yes

1

3

1

χ2 (2, n = 18) = 2.22

p = 0.33

No

5

3

5