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. 2026 Jul 30;13:1854599. doi: 10.3389/fmed.2026.1854599

Table 1.

Characteristics and outcomes of frail and non-frail patients with colorectal cancer.

Characteristics Total patients
(N = 4,936)
Non-Frail patients
(N = 3,877)
Frail patients
(N = 1,059)
P
Age 69.00 (64.00, 74.00) 68.00 (64.00, 74.00) 71.00 (66.00, 77.00) < 0.001
Sex 0.621
Male 2,969 (60.15) 2,339 (60.33) 630 (59.49)
Female 1,967 (39.85) 1,538 (39.67) 429 (40.51)
Emergency admission < 0.001
YES 686 (13.90) 474 (12.23) 212 (20.02)
NO 4,250 (86.10) 3,403 (87.77) 847 (79.98)
Admission severity < 0.001
Critical illness 744 (15.07) 516 (13.31) 228 (21.53)
Stable condition 4,192 (84.93) 3,361 (86.69) 831 (78.47)
Adjusted Inpatient costs (CNY) 78,582.56
(64,975.96, 99,318.49)
77,008.71
(64,036.12, 96,974.30)
83,967.47
(68,657.96, 107,931.20)
< 0.001
Length of stay 13.00 (10.00, 17.00) 13.00 (10.00, 16.00) 15.00 (11.00, 21.00) < 0.001
Comorbidity index 0.00 (0.00, 14.00) 0.00 (0.00, 14.00) 4.00 (0.00, 14.00) < 0.001
Unplanned return to the operating room < 0.001
Yes 81 (1.64) 47 (1.21) 34 (3.21)
NO 4,855 (98.36) 3,830 (98.79) 1,025 (96.79)
Adverse events < 0.001
YES 129 (2.61) 58 (1.50) 71 (6.70)
NO 4,807 (97.39) 3,819 (98.50) 988 (93.30)
Complications < 0.001
Yes 46 (0.93) 7 (0.18) 39 (3.68)
No 4,890 (99.07) 3,870 (99.82) 1,020 (96.32)
Tumor stage 0.586
Metastatic 1,213 (24.57) 946 (24.40) 267 (25.21)
Non-metastatic 3,723 (75.43) 2,931 (75.60) 792 (74.79)
Surgical approach 0.007
Minimally Invasive Surgery 3,660 (74.15) 2,909 (75.03) 751 (70.92)
Open Surgery 1,276 (25.85) 968 (24.97) 308 (29.08)

Continuous variables are presented as median (interquartile range) and were compared using the Mann–Whitney U test. Categorical variables are presented as n (%) and were compared using the chi-square test or Fisher’s exact test, as appropriate. Inpatient costs were adjusted to 2024 CNY.