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Table 3 ED visit characteristics and missing data

From: The growing impact of older patients in the emergency department: a 5-year retrospective analysis in Brazil

ED visit Variables

categories

N

(% ED visits)

% Valid

Mode of presentation

Spontaneous

316,153

(94.9)

94.9

Referred

16,875

(5.1)

5.1

Valid

333,028

(100.0)

100.0

Missing

0

  

Time of ED visit

Day shift (7 AM-7 PM)

246,520

(74.0)

74.0

Night shift (7 PM-7 AM)

86,508

(26.0)

26.0

Valid

333,028

(100.0)

100.0

Missing

0

  

Reason for attendance

Local symptoms

106,831

(32.1)

32.8

General symptoms

150,423

(45.2)

46.2

External causes

30,323

(9.1)

9.3

Evaluation

37,780

(11.3)

11.6

Valid

325,357

(97.7)

100.0

Missing (scheduled visits)

7671

(2.3)

 

ED outcome

Admission

52,592

(15.8)

15.8

Discharge

280,436

(84.2)

84.2

Valid

333,028

(100.0)

100.0

Missing

0

  

Admission Variables

 Type of hospitalization

Surgical

26,091

(7.8)

50.5

Clinical

25,537

(7.7)

49.5

Valid

51,628

(15.5)

100.0

Missing (other specialties)

964

(0.3)

 

Missing (discharged from ED)

280,436

(84.2)

 

 Main Procedure

Clinical

36,376

(10.9)

69.4

Surgical

14,564

(4.4)

27.8

Transplant-related

1493

(0.4)

2.8

Valid

52,433

(15.7)

100.0

Missing (diagnostic testing)

146

(0.0)

 

Missing (discharged from ED)

280,449

(84.2)

 

 Use of ICU

No

38,977

(11.7)

74.1

Yes

13,615

(4.1)

25.9

Valid

52,592

(15.8)

100.0

Missing (discharged from ED)

280,436

(84.2)

 

 Final admission outcome

Death

6674

(2.0)

12.7

Discharge

45,918

(13.8)

87.3

Valid

52,592

(15.8)

100.0

Missing (discharged from ED)

280,436

(84.2)

 

 Categorized LOS

0–1

11,252

(3.4)

21.4

2–2

6455

(1.9)

12.3

3–3

4612

(1.4)

8.8

4–7

11,158

(3.4)

21.2

8–20

13,462

(4.0)

25.6

21+

5640

(1.7)

10.7

Valid

52,579

(15.8)

100.0

Missing (discharged from ED)

280,449

(84.2)

 
  1. Missing data: 7671 (2.3%) due to ‘scheduled attendances’, 964 (0.3%) due to admissions to other specialties and 146 (0.0%) due to diagnostic testing. Valid percentages are out of the total number of eligible ED visits, or total number of admissions, after exclusions and without missing data