Perioperative characteristics and outcomes of colorectal cancer in elderly patients

Table 3 Postoperative and age group of the study participants, n (%)

Characteristics	65-69 years	70-74 years	75-79 years	80-84 years	85-89 years	χ2 (df)	P value
Gas						35.95 (20)	0.068
No	0 (0)	0 (0)	1 (100)	0 (0)	0 (0)
Day 1	21 (45.7)	13 (28.3)	7 (15.2)	3 (6.5)	2 (4.3)
Day 2	13 (40.6)	11 (34.4)	5 (15.6)	3 (9.4)	0 (0)
Day 3	4 (44.4)	3 (33.3)	1 (11.1)	0 (0)	1 (11.1)
Day 4	6 (66.7)	1 (11.1)	2 (22.2)	0 (0)	0 (0)
Day 5	0 (0)	0 (0)	0 (0)	0 (0)	1 (100)
Stool						34.23 (28)	0.194
No	0 (0)	1 (50.0)	1 (50.0)	0 (0)	0 (0)
Day 1	13 (39.4)	10 (30.3)	7 (21.2)	1 (3.0)	2 (6.1)
Day 2	12 (60.0)	7 (35.0)	1 (5.0)	0 (0)	0 (0)
Day 3	7 (46.7)	3 (20.0)	4 (26.7)	1 (6.7)	0 (0)
Day 4	4 (50.0)	2 (25.0)	0 (0)	2 (25.0)	0 (0)
Day 5	4 (40.0)	3 (30.0)	2 (20.0)	1 (10.0)	0 (0)
Day 6	2 (50.0)	1 (25.0)	1 (25.0)	0 (0)	0 (0)
Day 7	2 (33.3)	1 (16.7)	0 (0)	1 (16.7)	2 (33.3)
Oral feeding						23.27 (16)	0.217
No	0 (0)	0 (0)	1 (100)	0 (0)	0 (0)
Day 1	37 (44.6)	24 (28.9)	14 (16.9)	4 (4.8)	4 (4.8)
Day 2	6 (50.0)	4 (33.3)	1 (8.3)	1 (8.3)	0 (0)
Day 5	1 (100)	0 (0)	0 (0)	0 (0)	0 (0)
Day 6	0 (0)	0 (0)	0 (0)	1 (100)	0 (0)
Postop stay (day)	9.75 ± 11.26	9.14 ± 6.56	12.31 ± 21.93	6.17 ± 1.33	7.00 ± 2.45	-	0.828
Postop complication						16.88 (24)	0.775
Grade 1	31 (44.3)	20 (28.6)	11 (15.7)	6 (8.6)	2 (2.9)
Grade 2	4 (57.1)	2 (28.6)	0 (0)	0 (0)	1 (14.3)
Grade 3	1 (33.3)	1 (33.3)	1 (33.3)	0 (0)	0 (0)
Grade 3a	0 (0)	1 (100)	0 (0)	0 (0)	0 (0)
Grade 3b	4 (80.0)	1 (20.0)	0 (0)	0 (0)	0 (0)
Grade 4b	1 (100)	0 (0)	0 (0)	0 (0)	0 (0)
Grade 5	3 (27.3)	3 (27.3)	4 (36.4)	0 (0)	1 (9.1)
Reoperation						3.18 (4)	0.535
No	39 (42.9)	26 (28.6)	16 (17.6)	6 (6.6)	4 (4.4)
Yes	5 (71.4)	2 (28.6)	0 (0)	0 (0)	0 (0)
Adjuvant treatment						13.81 (4)	0.006
No	9 (29.0)	8 (25.8)	10 (32.3)	1 (3.2)	3 (9.7)
Yes	35 (52.2)	20 (29.9)	6 (9.0)	5 (7.5)	1 (1.5)
Recurrence						4.52 (4)	0.358
No	22 (40.0)	14 (25.5)	11 (20.0)	5 (9.1)	3 (5.5)
Yes	22 (51.2)	14 (32.6)	5 (11.6)	1 (2.3)	1 (2.3)
Follow-up						4.81 (4)	0.316
No	29 (43.9)	16 (24.2)	12 (18.2)	6 (9.1)	3 (4.5)
Survive	15 (46.9)	12 (37.5)	4 (12.5)	0 (0)	1 (3.1)