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Table 7 MCA level of missingness analyses

From: Data missingness in the Michigan NEMSIS (MI-EMSIS) dataset: a mixed-methods study

 

MCA level of missingness N (%)

Level of missingness across all MCAs (%)

 

0–5%

5–10%

10–15%

15–20%

20–25%

25–30%

> 30%

Mean

Median

Standard

deviation

Range

Age

13 (21)

24 (39)

7 (11)

5 (8)

4 (7)

0 (0)

8 (13)

13.9

8.4

16.6

0–100

Gender

15 (25)

24 (39)

6 (10)

5 (5)

3 (5)

2 (3)

6 (10)

13.7

8

16.5

0–100

Race

0 (0)

1 (2)

2 (3)

4 (7)

8 (13)

5 (8)

42 (69)

43.3

39.3

23.4

9–100

Patient Home Zip

11 (18)

22 (36)

9 (15)

6 (10)

5 (8)

1 (2)

10 (16)

16.9

9.9

17.8

0–98

Incident Zip

58 (95)

1 (2)

1 (2)

0 (0)

0 (0)

0 (0)

1 (2)

1.6

0.1

8.7

0–67

Destination Name

20 (33)

13 (21)

9 (15)

11 (18)

5 (8)

1 (2)

3 (5)

11.2

9.5

9.2

0–100

Destination Code

24 (39)

12 (20)

6 (10)

11 (18)

3 (5)

1 (2)

6 (10)

12.6

6.4

15.1

0–100

Chief Complaint Narrative

24 (39)

24 (39)

4 (7)

3 (5)

2 (3)

2 (3)

2 (3)

8.7

7.2

8.4

0–41

Provider Primary Impression

51 (84)

4 (7)

4 (7)

2 (3)

0 (0)

0 (0)

0 (0)

3.1

1.3

4.7

0–20

Medication Allergies

2 (3)

3(5)

9 (15)

6 (10)

9 (15)

8 (13)

24 (39)

30.6

27.3

20.3

0–100

Medical Surgical History

11 (18)

5 (8)

6 (10)

3 (5)

6 (10)

1 (2)

29 (48)

37.6

24.7

31.3

0–100

Current Medication Name

0 (0)

0 (0)

3 (5)

6 (10)

1 (2)

7 (11)

44 (72)

51.7

46.2

27.2

11–100

Systolic Blood Pressure

1 (2)

1 (2)

4 (7)

18 (30)

8 (13)

4 (7)

26 (43)

32.5

24.5

21.7

3–100

Diastolic Blood Pressure

0 (0)

2 (3)

2 (3)

15 (3)

9 (15)

5 (8)

28 (46)

34.1

25.8

21.4

7–100

Pulse Rate

1 (2)

1 (2)

10 (16)

12 (20)

7 (11)

6 (10)

24 (40)

31.2

24.3

21.7

2–100

Pulse Oximetry

1 (2)

0 (0)

2 (3)

4 (7)

8 (13)

7 (11)

39 (64)

40.7

35.7

20.8

4–100

Respiratory Rate

1 (2)

2 (3)

8 (13)

14 (23)

6 (10)

4 (7)

26 (43)

32.3

24.6

23.1

0–100

Body Temperature

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

61 (100)

90.8

95.4

11.6

44–100