Skip to main content

Table 1 Patient characteristics

From: Factors influencing warm ischemia time in robot-assisted partial nephrectomy change depending on the surgeon’s experience

  

All cases

All cases by TH

1st period

2nd period

3rd period

  

N = 174

N = 114

N = 38

N = 38

N = 38

Age, years (median [IQR])

 

64 (56–70)

64 (58–70)

62.4 (58–68)

65.5 (59–70)

64 (55–70)

Sex (%)

Male

129 (74.1)

85 (74.6)

28 (73.7)

32 (84.2)

25 (65.8)

 

Female

45 (25.9)

29 (25.4)

10 (26.3)

6 (15.8)

13 (34.2)

BMI, kg/m2 (median [IQR])

 

24.5 (22.5–26.7)

24.4 (22.0–26.6)

24.2 (21.5–25.5)

24.6 (22.5–27.4)

24.6 (21.1–26.7)

Laterality (%)

Right

107 (61.5)

69 (60.5)

26 (68.4)

26 (68.4)

17 (44.7)

 

Left

67 (38.5)

45 (39.5)

12 (31.6)

12 (31.6)

21 (55.3)

Diameter, mm (median [IQR])

 

29 (22–35)

32 (25–41)

26 (20–30)

33.5 (27–42)

39.5 (30–47)

RENAL nephrometry score (median [IQR])

 

7 (5–8)

7 (5–8)

5 (4–7)

7 (6–8)

8 (7–9)

R (median [IQR])

 

1 (1–1)

1 (1–1)

1 (1–1)

1 (1–1)

1 (1–2)

E (median [IQR])

 

2 (1–2)

2 (1–2)

1 (1–2)

2 (1–2)

2 (1–2)

N (median [IQR])

 

2 (1–3)

3 (1–3)

1 (1–3)

3 (2–3)

3 (3–3)

L (median [IQR])

 

1 (1–3)

1 (1–3)

1 (1–2)

2 (1–3)

2 (1–3)

Preoperative eGFR, mL/min (median [IQR])

 

67.6 (55.8–75.5)

69.4 (58.7– 76.4)

75.2 (65.2–78.0)

64.7 (55.7–75.0)

68.2 (54.1–75.8)

POM 1 eGFR, mL/min (median [IQR])

 

63.4 (52.5–75.9)

63.9 (53.9–77.5)

67.9 (62.2–82.2)

64.9 (52.8–7.3)

55.4 (46.7–67.6)

Clinical T (%)

1a

147 (84.5)

87 (76.3)

37 (97.4)

30 (78.9)

20 (52.6)

 

1b

27 (15.5)

27 (23.7)

1 (2.6)

8 (21.1)

18 (47.4)

  1. IQR interquartile range; BMI body mass index; RENAL radius, exophytic/endophytic, nearness of tumor to collecting system, anterior/posterior, location relative to polar line; eGFR estimated glomerular filtration rate; POM postoperative month; T size of the primary tumor and whether it has invaded nearby tissue; TH high-volume surgeon in our hospital