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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