Table 2: General graph of factors.

Factors

Group 1.

Conversion from

laparoscopic

to open

cholecystectomy

(N = 35)

n (%)

Group 2.

Laparoscopic

cholecystectomy

(N = 327)

n (%)

p

Age (mean) [years]

47.40

38.40

0.324

Age > 65 years

8 (22.80)

72 (22.02)

0.003

Female

28 (80)

255 (77.98)

0.008

Male

7 (20)

72 (22.02)

0.168

Nutritional status

Malnutrition

0

0

0

Normal

13 (37.14)

141 (43.12)

0.06

Overweight

14 (40)

137(41.90)

0.005

Obesity grade I

4 (11.40)

31 (9.40)

0.135

Obesity grade II

3(8.50)

15 (4.50)

0.139

Obesity grade III

0

1 (0.41)

0.864

Wall thickness

> 4 mm per USG

11 (31.40)

81 (24.80)

0.389

The image on

the double rail by USG

9 (25.70)

58 (17.70)

0.2433

CRP > 10 mg/dl

23 (65.70)

39 (11.90)

0.0001

Leukocytes > 10,000/mm3

25 (71.40)

43 (13.10)

0.0001

Bilirubin > 2 mg/dl

4 (11.40)

10 (2.50)

0.0146

History of ERCP

5 (14.29)

23 (7.03)

0.1269

Transoperative risk factors

Surgeon in training

23 (65.70)

245 (74.90)

0.001

Degree of training

Attending physician

12 (34.29)

85 (25.99)

0.292

R2

2 (5.71)

36 (11.01)

0.331

R3

7 (20)

146 (44.65)

0.005

R4

14 (40)

60 (18.35)

0.002

Shift time

Morning

26 (74.29)

191 (58.41)

0.068

Evening

8 (22.86)

118 (36.09)

0.118

Night

1 (2.86)

11 (3.36)

0.863

Weekend

0

7 (2.14)

0

Anatomical variant

16 (45.71)

127 (38.83)

0.154

Hemorrhage > 200 ml

16 (45.70)

25 (7.60)

0.4788

Bile duct injury

2 (5.70)

1(0.30)

0.0008

Post-surgical complications

Wound infection

3 (8.70)

8 (2.40)

0.0448

Jaundice

2 (5.70)

6 (1.50)

0.1379

Days of hospital stay

in-hospital, mean

3.9

3.12

0.222