Table 1 Summary of data per time period

Number

7

11

7

Age (years)

39.43 ± 12.78

35.91 ± 15.42

40.71 ± 15.55

0.775

Gender (F:M)

7:0

9:2

6:1

0.500

BMI (kg/m²)

21.71 ± 2.87

22.82 ± 2.36

22.43 ± 2.88

0.694

Symptomatic (yes/no)

2/5

5/6

2/5

0.997

Operation type (MI/open)

2/5

5/6

5/2

0.269

Operation (PPPD/CP)

3/4

8/3

5/2

0.389

Tumor size (cm)

3.63 ± 1.91

4.12 ± 1.82

2.44 ± 0.78*

0.126

Stage

0.833

 Ia

2 (28%)

2

2 (28%)

 Ib

5 (72%)

9

5 (72%)