Table 4 Univariate linear regression analyses for the independent variables and the Geriatric Delirium Competence Questionnaire score

gender (female = 1)

−0.64

1.16

−0.05

0.58

work experience (years)

0.02

0.04

0.05

0.58

frequent care of delirious patients in daily routine

2.67

0.88

0.28

< 0.01^**

delirium training within the previous 12 months

2.3

0.95

0.23

0.02^*

accumulated delirium training (total hours)

0.08

0.04

0.22

0.03^*

subjective self-assessment before survey

1.45

0.4

0.33

< 0.001^***

subjective self-assessment after survey

2.7

0.44

0.50

< 0.001^***