Table 1 Characters of the study sample according to employment sector. Electronic health record (EHR) usability factors include reliability, user-friendliness, impact on quality of service and support for cooperation. Registered nurses informatics competence factors enclose classification (of Finnish Care Classification system), and electronic care, documentation and ethics

 Intermediate school

1200 (34.9)

647 (35.0)

284 (34.7)

78 (39.6)

170 (35.1)

21 (23.6)

< 0.001

 University of applied sciences

1806 (52.5)

934 (50.6)

470 (57.4)

90 (45.7)

265 (54.6)

47 (52.8)

 Additional education at a university of applied sciences or a university

431 (12.5)

266 (14.4)

65 (7.9)

29 (14.7)

50 (10.3)

21 (23.6)

 Women

3233 (94.9)

1724 (94.1)

784 (97.0)

188 (94.5)

461 (96.0)

76 (86.4)

< 0.001

 Men

174 (5.1)

108 (5.9)

24 (3.0)

11 (5.5)

19 (4.0)

12 (13.6)

 Age

46.2 (10.99)

45.7 (11.23)

47.0 (10.71)

47.5 (9.97)

46.6 (10.71)

45.8 (11.93)

 Time pressure^a

3.79 (0.99)

3.80 (0.98)

3.87 (0.98)

3.55 (0.96)

3.81 (0.98)

3.29 (1.17)

 Psychological distress ^b

2.02 (0.71)

2.00 (0.71)

2.00 (0.73)

2.07 (0.75)

2.09 (0.72)

1.92 (0.75)

 Reliability

2.85 (0.92)

2.76 (0.90)

2.80 (0.91)

3.14 (0.90)

3.17 (0.93)

2.92 (0.95)

 User-friendliness

3.03 (0.71)

2.97 (0.69)

3.05 (0.70)

3.15 (0.76)

3.20 (0.73)

2.93 (0.76)

 Impact on quality of service

3.20 (0.78)

3.18 (0.77)

3.16 (0.79)

3.27 (0.82)

3.34 (0.75)

3.31 (0.85)

 Support for cooperation

3.06 (0.75)

3.04 (0.72)

3.10 (0.76)

3.01 (0.99)

3.07 (0.80)

3.19 (0.73)

 Classification

3.94 (0.96)

3.93 (0.97)

3.96 (0.92)

3.76 (0.99)

3.99 (0.96)

3.66 (1.24)

 e-Care

3.61 (0.89)

3.52 (0.89)

3.68 (0.86)

3.67 (0.90)

3.76 (0.90)

4.00 (0.70)

 e-Documentation

4.19 (0.70)

4.21 (0.68)

4.15 (0.71)

4.17 (0.73)

4.22 (0.72)

4.09 (0.77)

 e-Ethics

4.39 (0.64)

4.38 (0.65)

4.39 (0.61)

4.36 (0.65)

4.42 (0.64)

4.57 (0.53)