Table 2 Comparison of outcome parameters between patients younger than 75 years (younger group) and older than 75 years (elderly group)
Characteristics | All patients (n = 188) | Before matching | After matching | ||||
|---|---|---|---|---|---|---|---|
YG (n = 151) | EG (n = 37) | p | YG (n = 37) | EG (n = 37) | p | ||
Median number of lymph nodes removed (IQR) | 30 (23.8–38) | 30 (24–37) | 31 (19–38) | 0.649 | 32 (25–36.5) | 31 (19–38) | 0.511 |
Positive resection margins, n (%) | 15 (8) | 12 (8) | 3 (8) | 1 | 2 (5) | 3 (8) | 0.674 |
Type of resection, n (%) | 0.935 | 0.476 | |||||
MIE | 129 (69) | 104 (69) | 25 (68) | 23 (62) | 25 (68) | ||
Hybrid (abdominal) | 27 (14) | 21 (14) | 6 (16) | 4 (11) | 6 (16) | ||
Robotic | 32 (17) | 26 (17) | 6 (16) | 10 (27) | 6 (16) | ||
Overall morbidity, n (%) | 136 (73) | 108 (72) | 28 (78) | 0.483 | 25 (69) | 28 (78) | 0.422 |
Major postoperative morbidity, n (%) | 96 (51) | 75 (50) | 21 (57) | 0.440 | 13 (35) | 21 (57) | 0.062 |
Anastomotic leak, n (%) | 29 (15) | 22 (15) | 7 (19) | 0.512 | 7 (19) | 7 (19) | 1 |
Anastomotic stricture, n (%) | 11 (6) | 10 (7) | 1 (3) | 0.695 | 3 (8) | 1 (3) | 0.615 |
Pulmonary complications, n (%) | 94 (50) | 70 (46) | 24 (65) | 0.044 | 14 (38) | 24 (65) | 0.020 |
Postoperative pneumonia, n (%) | 67 (36) | 47 (31) | 20 (54) | 0.009 | 11 (30) | 20 (54) | 0.034 |
Median duration of hospital stay (IQR), days | 15 (12–30.8) | 15 (12–30) | 21 (14.5–33) | 0.025 | 14 (12–29.5) | 21 (14.5–33) | 0.050 |
In-hospital mortality, n (%) | 6 (3) | 4 (3) | 2 (5) | 0.337 | 1 (3) | 2 (5) | 1 |
30-day mortality, n (%) | 2 (1) | 1 (1) | 1 (3) | 0.357 | 0 (0) | 1 (3) | 1 |