Table 3 Clinical and CT characteristics of surgical and conservative groups

Gender ratio (male/female)

2:1

1.47:1

.76

Age, years

 Mean

50.4 ± 17.5

51.2 ± 18.0

.89

 Range

26–73

18–84

Symptoms

 Abdominal pain

11 (91.7)

63 (79.7)

.45

 Bloating

7 (58.3)

19 (24.1)

 Vomiting

3 (25.0)

14 (17.7)

 Nausea

3 (25.0)

3 (3.8)

 Diarrhea

–

5 (6.3)

 Constipation

–

2 (2.5)

Intestinal obstruction (n = 19)

7 (58.3)

12 (15.2)

.002

 Complication: volvulus (n = 7)

3 (25.0)

4 (5.1)

.046

Duration of symptoms

.36

 Hours/days

6 (50.0)

19 (24.1)

 Weeks

2 (16.7)

14 (17.7)

 Months

2 (16.7)

22 (27.8)

 Years

2 (16.7)

24 (30.4)

CT classification^‡

.016

Duodenal partial rotation

.33

 D_YJ_RC_R

3 (25.0)

51 (64.5)

.013

 D_YJ_RC_L

1 (8.3)

1 (1.3)

 D_YJ_RC_M

1 (8.3)

1 (1.3)

 D_YJ_RC_P

1 (8.3)

–

Duodenal nonrotation

.52

 D_NJ_RC_R

5 (41.7)

20 (25.3)

 D_NJ_RC_L

–

2 (2.5)

 D_NJ_RC_P

–

1 (1.3)

Duodenal rotation

.44

 D_YJ_LC_R

1 (8.3)

1 (1.3)

 D_YJ_LC_L

–

2 (2.5)

Position of SMA relative to SMV

.75

 Left rear

7

34

 Left

3

27

 Left front

2

12

 Right rear

0

6

Whirlpool sign

2

4