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Table 1 Clinical characteristics

From: Analysis of bowel function, urogenital function, and long-term follow-up outcomes associated with robotic and laparoscopic sphincter-preserving surgical approaches to total mesorectal excision in low rectal cancer: a retrospective cohort study

Variables

RAS

LAS

P

Total clinical cases, n

200

486

 

Gender (male, %)

121 (60.5)

302 (62.1)

0.688

Average age (mean, SD)

58.4±11.8

59.8±11.5

0.149

Body mass index (mean, SD)

23.1±3.1

22.9±3.5

0.402

ASA classification

 I(%)

26 (13)

52 (10.7)

0.335

 II(%)

134 (67)

353 (72.6)

 III(%)

40 (20)

81 (16.7)

NRS2002 score (median, IQR)

2 (2,3)

2 (2,3)

0.408

Diabetes (yes, %)

26 (13)

54 (11.1)

0.484

Level of hemoglobin(g/L, mean, SD)

130.9±15.4

129.5±15.3

0.263

Level of plasma albumin(g/L, mean, SD)

43.2±7.1

42.7±3.6

0.163

Level of CEA (≥5 ng/ml, %)

49 (24.5)

154 (31.7)

0.061

Level of CA199 (≥36 u/ml, %)

18 (9)

58 (11.9)

0.266

Distance from anal edge (cm, mean, SD)

5.06±0.84

5.66±0.53

<0.0001

MRI cT stage, N (%)

 T1 (%)

26 (13)

59 (12.1)

0.738

 T2 (%)

117 (58.5)

274 (56.4)

 T3 (%)

57 (28.5)

153 (31.5)

MRI cN stage, N (%)

 N0 (%)

126 (63)

336 (69.1)

0.297

 N1 (%)

43 (21.5)

87 (17.9)

 N2 (%)

31 (15.5)

63 (13)

MRI cTNM stage, N (%)

0.464

 I(%)

99 (49.5)

250 (51.4)

 II(%)

39 (19.5)

107 (22)

 III(%)

62 (31)

129 (26.5)

Neoadjuvant chemoradiotherapy (%)

21 (10.5)

43 (8.8)

0.441

Total hospitalization costs (Â¥), mean (SD)

53,922±14290

48,522±17466

<0.0001

  1. RAS robotic-assisted surgery cohort, LAS laparoscopic-assisted surgery cohort, NRS nutritional risk screening, SD standard deviation, IQR interquartile range, MRI magnetic resonance imaging