Table 8 Linear regression analyses between Demographic variables and Use sub-score

Gender (ref: female)

0.16

0.06, 0.27

0.003*

Age

20–39 years

Ref

40–59 years

0.12

-0.08, 0.32

0.226

60 + years

0.48

0.15, 0.81

0.004*

Years in practice

0–5 years

Ref

6–10 years

-0.08

-0.24, 0.08

0.347

11–15 years

-0.33

-0.52, -0.13

0.001*

16 + years

-0.50

-0.75, -0.25

0.000*

Research hours spent per week (ref: none)

0.17

0.03, 0.32

0.020*

Education

England

Ref

Denmark

-0.11

-0.26, 0.04

0.162

USA

-0.14

-0.32, 0.05

0.141

Australia

0.12

-0.07, 0.31

0.213