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# Table 4 Clinical features of clear cell tumors compared to Type I tumors, Type II tumors and Type I and II tumors in one group

N (%) N (%) N (%) N (%) N (%) N (%)
16 (29) 40 (61) 16 (18) 75 (82) 16 (12) 115 (88)
Clear cell Type I Clear cell Type II Clear cell Other (Type I+II)
Tumors Tumors Tumors Tumors Tumors Tumors
Age 54.7 57.2 54.7 60.2 54.7 59.1
p = 0.388   p = 0.046   p = 0.100 (t-test)
BMI ≤ 25 11 (73) 11 (36) 11 (73) 44 (61) 11 (73) 58 (52)
BMI > 25 4 (27) 25 (64) 4 (27) 28 (39) 4 (27) 53 (48)
p = 0.013   p = 0.372   p = 0.123 (chi-2)
STAGE
IA-B 3 (19) 20 (50) 3 (19) 22 (29) 3 (19) 42 (19)
IC 10 (62) 16 (40) 10 (62) 40 (54) 10 (62) 56 (49)
II 3 (19) 4 (10) 3 (19) 13 (17) 3 (19) 17 (15)
p = 0.097   p = 0.669   p = 0.341 (chi-2)
Capsule
Rupture*
Yes 10 (63) 13 (33) 10 (63) 39(34) 10 (63) 26 (35)
No 6 (37) 27 (67) 6 (37) 76 (66) 6 (37) 49 (65)
p = 0.039   p = 0.027   p = 0.039 (chi-2)
Recurrence
Without 12 (75) 31 (77) 12 (75) 54 (69) 12 (75) 85 (74)
With 4 (25) 9 (23) 4 (25) 21 (31) 4 (25) 30 (26)
p = 0.841   p = 0.807   p = 0.926 (chi-2)
1. * Capsule of the tumor is perforated before or at primary surgery.