Table 1 Comparison of general data between the two groups of cases

Age (years)

61.31 ± 11.19

62.86 ± 11.49

0.509

0.613

Sex (cases)

Male

21

16

1.410

0.235

Female

15

6

Location (cases)

Left kidney

15

9

0.021

0.885

Right kidney

21

13

Maximum diameter (cm)

7.60 ± 3.39

7.93 ± 2.98

0.370

0.706

Grouping by maximum diameter (cases)

≤ 4 cm

4

1

0.640

> 4 cm

32

21