Table 1 Changes in clinicopathological characteristics of patients with non-metastatic RCC before and after propensity score matching

n

87

558

NA

78

190

NA

Sex

0.302

0.622

 Male

60(69.0)

353(63.3)

51(65.4)

128(67.4)

 Female

27(31.0)

205(36.7)

27(34.6)

62(32.6)

Age, years

<0.001^*

0.610

 ≤65

51(58.6)

434(77.8)

50(64.1)

136(71.6)

 >65

36(41.4)

124(22.2)

28(35.9)

54(28.4)

Hypertension

0.154

0.605

 Yes

41(47.1)

218(39.1)

37(47.4)

80(42.1)

 No

46(52.9)

340(60.9)

41(52.6)

110(57.9)

Diabetes

0.071

0.613

 Yes

19(21.8)

80(14.3)

16(20.5)

32(16.8)

 No

68(78.2)

478(85.7)

62(79.5)

158(83.2)

Smoke

0.563

0.557

 Yes

25(28.7)

144(25.8)

23(29.5)

52(27.4)

 No

62(71.3)

414(74.2)

55(70.5)

138(72.6)

BMI, kg/m2

25.3±5.0

25.1±3.2

0.594

25.4±5.1

24.6±3.2

0.562

Tumor sidedness

0.621

0.603

 Left

39(44.8)

266(47.7)

34(43.6)

90(47.4)

 Right

48(55.2)

292(52.3)

44(56.4)

100(52.6)

pT stage

0.072

0.616

 pT1-T2

82(94.3)

545(97.7)

75(96.2)

183(96.3)

 pT3-T4

5(5.7)

13(2.3)

3(3.8)

7(3.7)

Fuhrman grade

0.002^*

0.611

 I-II

55(63.2)

439(78.7)

54(69.2)

139(73.2)

 III-IV

32(36.8)

119(21.3)

24(30.8)

51(26.8)

Surgical method

0.160

0.609

 RN

64(73.6)

368(65.9)

56(71.8)

136(71.6)

 PN

23(26.4)

190(34.1)

22(28.2)

54(28.4)

Surgical approach

0.508

0.620

 Laparoscopic

72(82.8)

448(80.3)

64(82.1)

159(83.7)

 Open

10(11.5)

57(10.2)

9(11.5)

17(8.9)

 Robotic

5(5.7)

53(9.5)

5(6.4)

14(7.4)

Tumor size, cm

4.6±2.3

4.3±2.3

0.175

4.5±2.1

4.6±2.4

0.629

ALB, g/l

35.2±2.6

44.1±3.9

<0.001^*

35.3±2.7

44.3±4.1

<0.001^*

TC, mg/dl

148.4±31.7

179.2±37.9

<0.001^*

148.6±32.4

176.8±35.7

<0.001^*