Table 2 The prevalence of Medication error according to different variables among Iranian nurses

Type of medication error

wrong patient

14

17.4

12.2–22.6

87.5

0.00

0.00

wrong medicine

15

19.7

14.8–24.6

85.2

0.00

0.008

Wrong prescription

19

24.7

18.2–31.3

92.8

0.00

0.02

Wrong dose

18

26.4

20.1–32.8

91.0

0.00

0.01

wrong time

16

27.3

18.7–36

95.8

0.00

0.03

Cause of medication error

Fatigue

7

42.7

15.4–70.1

98.5

0.00

0.15

Crowded workplace

7

43

18.1–67.8

98.4

0.00

0.12

Lack of nurses

9

38.8

21.1–56.4

97

0.00

0.07

High workload

4

16.9

5-28.9

91.3

0.00

0.01

Time of medication error

Morning

3

18.5

5.7–31.2

82.5

0.00

0.01

Evening

3

25

11.6–38.3

78.6

0.00

0.01

Night

5

41.1

33.4–48.7

54.6

0.06

0.00

Number of error reports

Once

6

48.5

27.5–69.6

97.1

0.00

0.06

Twice or more

6

51.5

30-73.3

97.3

0.00

0.07

Sample size

< 100

13

60

44–76

98

0.0

0.08

100–200

12

64.2

50.7–77.8

98.1

0.0

0.05

200–300

5

53.4

33.2–73.6

98.4

0.0

0.05

300–400

5

24.5

15.8–33.3

95.3

0.0

0.009

> 400

1

17

13.7–20.3

-

0.0

0.000

Development of the research site

underprivileged

6

47.9

9.7–86.2

99.8

0.014

0.22

Medium development

17

55

41.3–70.5

98.6

0.0

0.09

Developed

13

56

40.6–69.8

98.6

0.0

0.07

Quality

Low

4

45.6

21.5–69.7

93.6

0.00

0.05

Medium

24

62.1

51.1–73.2

98.7

0.00

0.07

High

8

35.2

19.1–51.3

99.1

0.00

0.05

Tool

Researcher

20

52.6

36.2–68.9

99.4

0.00

0.13

Other

16

56.4

41.2–71.6

99.0

0.00

0.09

Language

Persian

23

53.7

40.1–67.2

99.2

0.0

0.1

English

13

55.4

38-72.7

99.1

0.0

0.1

N hospital

1

12

59.3

49.1–69.4

94.6

0.02

2–5

9

56.6

39-74.2

98.2

0.07

> 5

5

32.4

9.2–55.6

99.3

0.11