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Table 2 Summary of patients with abdominal manifestations diagnosed as other than COVID-19

From: A descriptive study of abdominal complications in patients with mild COVID-19 presenting to the emergency department: a single-center experience in Japan during the omicron variant phase

No

Diagnosis

Sex

Age

BMI

Abdominal clinical presentation

Comorbidities

Vaccination frequency

D-dimer (μg/mL)

CRP (mg/dL)

Anti-S antibody (U/mL)

CT scan

Pneumonia

Onset to presentation (days)

Origin

ED/hospitalization

Treatment

1

Acute hemorrhagic colitis (descending)

M

23

24

Abdominal pain

Gastrointestinal bleeding

Pneumonitis

2

1.7

1.3

559

Chest

Abdominal

No

3

Clinic

Hospitalization

Conservation

2

Acute hemorrhagic colitis (sigmoid)

M

23

24

Abdominal pain Gastrointestinal bleeding

Nausea

None

2

 < 0.2

2.5

515

Chest

Abdominal

No

5

PHC

ED

Conservation

3

Acute hemorrhagic colitis (splenic flexure to sigmoid)

M

23

17

Abdominal pain

Gastrointestinal bleeding

Diarrhea, Vomiting

None

0

1.3

0.8

 < 0.4

Chest

Abdominal

No

5

None

ED

Conservation

4

Acute hemorrhagic colitis (sigmoid)

M

27

24

Gastrointestinal bleeding

None

2

 < 0.2

0.5

880

Chest

Abdominal

No

5

PHC

ED

Conservation

5

Acute hemorrhagic colitis (descending)

M

30

24

Abdominal pain

Gastrointestinal bleeding

None

2

0.4

0.7

1243

Chest

Abdominal

No

7

None

ED

Conservation

6

Acute hemorrhagic colitis (descending to sigmoid)

F

34

19

Abdominal pain

Gastrointestinal bleeding

None

2

0.3

0.4

6685

Chest

Abdominal

No

6

None

ED

Conservation

7

Acute hemorrhagic colitis (splenic flexure to descending)

M

39

25

Gastrointestinal bleeding

None

0

0.6

4.3

 < 0.4

Chest

Abdominal

No

1

None

ED

Conservation

8

Acute hemorrhagic colitis (descending)

F

42

23

Abdominal pain

Gastrointestinal bleeding

Diarrhea

None

2

0.4

0.9

 < 0.4

Chest

Abdominal

No

3

None

ED

Conservation

9

Acute hemorrhagic colitis (descending)

F

42

Missing

Abdominal pain

Gastrointestinal bleeding

Kikuchi disease

3

 < 0.2

3.7

18,981

Chest

Abdominal

No

2

None

ED

Conservation

10

Acute hemorrhagic colitis (descending to sigmoid)

F

44

29

Abdominal pain

Gastrointestinal bleeding

HT

Diverticulum hemorrhage

2

0.9

0.1

1109

Chest

Abdominal

No

3

Clinic

ED

Conservation

11

Acute hemorrhagic colitis (descending to sigmoid)

F

45

22

Abdominal pain

Gastrointestinal bleeding

Arrhythmia

0

0.9

0.1

 < 0.4

Chest

Abdominal

No

3

None

Hospitalization

Conservation

12

Acute hemorrhagic colitis (splenic flexure to sigmoid)

F

52

18

Abdominal pain

Gastrointestinal bleeding

Ischemic colitis

Uterine fibroid

3

3.8

0.3

52,443

Chest

Abdominal

No

7

None

ED

Conservation

13

Acute hemorrhagic colitis (descending)

F

59

24

Abdominal pain

Gastrointestinal bleeding

Uterine fibroid

0

0.5

1.7

 < 0.4

Chest

Abdominal

No

3

None

ED

Conservation

14

Acute hemorrhagic colitis

(splenic flexure to descending)

F

61

20

Abdominal pain

Gastrointestinal bleeding

None

4

0.4

0.1

96,338

Chest

Abdominal

No

4

None

ED

Conservation

15

Acute hemorrhagic colitis (descending)

F

65

23

Abdominal pain

Gastrointestinal bleeding

Rheumatoid arthritis

3

 < 0.2

0.1

1448

Chest

Abdominal

No

2

PHC

Hospitalization

Conservation

16

Acute hemorrhagic colitis (splenic flexure to sigmoid)

F

66

24

Abdominal pain

Gastrointestinal bleeding

Pulmonary tuberculosis

3

1.2

6.1

5524

Chest

Abdominal

No

8

PHC

Hospitalization

Conservation

17

Acute hemorrhagic colitis (descending)

F

84

20

Abdominal pain

Gastrointestinal bleeding

GERD

Endometriosis

2

0.9

4.5

38,839

Chest

Abdominal

Yes

6

None

Hospitalization

Conservation

18

Drug-induced adverse event (Casirivimab and imdevimab)

M

47

34

Nausea

HT, HL, angina pectoris

2

0.8

0.3

633

Chest

Abdominal

No

5

None

Hospitalization

Conservation

19

Drug-induced adverse event (nirmatrelvir/ritonavir)

F

49

19

Abdominal pain

Nausea

None

3

0.2

1

2809

Chest

Yes

10

None

ED

Conservation

20

Drug-induced adverse event (molnupiravir)

F

66

28

Abdominal pain

BA, DM, HT, Arrhythmia

3

0.8

0.2

498

Chest

Yes

5

None

ED

Conservation

21

Drug-induced adverse event (nirmatrelvir/ritonavir)

M

67

Missing

Nausea and vomiting

None

3

0.4

1.4

5641

Chest

Abdominal

No

5

None

ED

Conservation

22

Drug-induced adverse event (molnupiravir)

F

71

Missing

Diarrhea

Auto immune hepatitis

0

1.1

1.1

 < 0.4

Chest

Yes

3

None

ED

Conservation

23

Retroperitoneal hemorrhage

M

41

28

Abdominal and back pain

HL

HU

3

1.1

6.2

6790

Chest

Abdominal

No

5

None

Hospitalization

Embolization

24

Retroperitoneal hemorrhage

M

56

22

Abdominal pain

None

3

1.3

2.1

10,553

Chest

Abdominal

No

1

None

Hospitalization

Embolization

25

Appendicitis

F

53

20

Abdominal pain

Diarrhea

None

3

0.5

16.9

5466

Chest

Abdominal

No

5

None

Hospitalization

Surgery

26

Appendicitis

M

75

22

Abdominal pain

Duodenal ulcer

3

2.3

14

3693

Chest

Abdominal

No

3

PHC

Hospitalization

Conservation

27

Choledocholithiasis

F

24

40

Abdominal pain

None

2

9.9

0.4

9577

Chest

Abdominal

No

8

None

Hospitalization

Endoscopy

28

Choledocholithiasis

F

31

25

Abdominal pain

None

3

1.8

0.5

N/A

Chest

Abdominal

No

9

None

Hospitalization

Endoscopy

29

Constipation

F

42

23

Abdominal pain

None

3

N/A

N/A

N/A

Chest

Abdominal

No

8

None

ED

Conservation

30

Constipation

F

81

Missing

Constipation

COPD

Dyslipidemia

3

1.1

0.9

18,461

Chest

No

4

PHC

ED

Conservation

31

Anuresis

M

74

21

Anuresis

Appendicitis

Prostatitis

4

N/A

N/A

N/A

Chest

Abdominal

No

7

None

ED

Conservation

32

Anuresis

F

90

18

Abdominal pain

HT, gastric ulcer

Pneumonitis, pyelonephritis

2

2.5

0.3

97.5

Chest

Abdominal

Yes

4

None

ED

Conservation

33

Cholecystitis

M

55

26

Abdominal pain

HT

3

2.0

28.1

15,422

Chest

Abdominal

No

6

None

Hospitalization

Surgery

34

Cholelithiasis

F

44

24

Abdominal pain

None

3

0.4

2.5

54,505

Chest

Abdominal

No

2

None

ED

Conservation

35

Ruptured esophageal varices

M

74

22

Gastrointestinal bleeding

DM, HT, LC

0

1.1

1.5

 < 0.4

Chest

Abdominal

Yes

4

PHC

Hospitalization

Endoscopy

36

Spermatic cord torsion

M

21

21

Abdominal pain

Orchialgia

None

0

 < 0.2

0.7

 < 0.4

None

N/A

8

PHC

Hospitalization

Surgery

37

Hemorrhagic ovarian cyst

F

22

21

Abdominal pain

None

3

 < 0.2

0.1

99,004

Chest

Abdominal

No

1

Clinic

ED

Conservation

  1. BMI Body mass index, CRP C-reactive protein, CT Computed tomography, ED Emergency department, PHC Public health center, HT Hypertension, HL Hyperlipidemia, GERD Gastroesophageal reflux disease, BA Bronchial asthma, DM Diabetes mellitus, HU Hyperuricemia, COPD Chronic obstructive pulmonary disease, LC Liver cirrhosis