Retrospective Cohort Study
Copyright ©The Author(s) 2024.
World J Clin Oncol. Aug 24, 2024; 15(8): 1021-1032
Published online Aug 24, 2024. doi: 10.5306/wjco.v15.i8.1021
Table 1 Characteristics of the total cohort
Characteristics
Total cohort (n = 446)
Demographics
Age (years) 65.09 ± 8.93
Male 246 (55.2%)
Female 200 (44.8%)
BMI (kg/m2) 22.67 ± 3.00
Smoke 166 (37.2%)
Hypertension 209 (46.9%)
Diabetes 130 (29.1%)
Tumor biomarkers
    sCA19-9 (U/mL)
        ≥ 37336 (75.3%)
        < 37102 (22.9%)
        Unknow8 (1.8%)
    sCA125 (U/mL)
        ≥ 3583 (18.6%)
        < 35341 (76.5%)
        Unknow22 (4.9%)
Tumor features
    Location
        Head217 (48.7%)
        Neck 29 (6.5%)
        Body 69 (15.5%)
        Tail 58 (13.0%)
        Both body and tail 50 (11.2%)
        Others 23 (5.2%)
    Degree of differentiation
        Poor 142 (31.8%)
        Moderate 239 (53.6%)
        Well 43 (9.6%)
        Unknow 22 (4.9%)
    TNM stage
        Ⅰ198 (44.4%)
        Ⅱ139 (31.2%)
        Ⅲ58 (13.0%)
        Ⅳ51 (11.4%)
Surgical information
    Main surgical procedure
        Pancreaticoduodenectomy 230 (51.6%)
        Pancreaticocaudectomy 191 (42.8%)
        Others25 (5.6%)
    Method of surgery
        Laparoscope 162 (36.3%)
        Open 284 (63.7%)
    Time of surgery (min) 295 (225-395)
    Bleeding (mL) 200 (100-300)
Inflammatory-nutritional markers
    AGR1.42 (1.27-1.59)
    PNI47.75 (43.89-51.11)
    SII563.12 (367.88-894.94)
    NLR2.74 (2.13-3.97)
    PLR146.88 (107.55-195.98)
    NRI104.02 (97.85-109.90)
    GNRI102.86 (96.74-108.59)
Hospital stays (days) 17.68 ± 12.72
Table 2 Difference between early and delayed discharge cohort with a cut-off of 15-day postoperative discharge
Characteristics
Early discharge cohort (n = 259)
Delayed discharge cohort (n = 187)
P value
Demographics
    Age (years)64.01 ± 8.5766.58 ± 9.230.003b
    Gender (male/female)147/11299/880.424
    BMI (kg/m2)22.76 ± 3.1222.54 ± 2.810.453
    Smoke (yes/no)103/15663/1240.190
    Hypertension (yes/no)108/151101/860.010a
    Diabetes (yes/no)67/19263/1240.073
Tumor features
    Location< 0.001c
    Head90127
    Neck236
    Body5316
    Tail4513
    Both body and tail3515
    Others1310
Degree of differentiation0.320
    Poor8557
    Moderate132107
    Well 3013
    Unknow1210
TNM stage0.942
    Ⅰ11682
    Ⅱ8059
    Ⅲ3226
    Ⅳ3120
Surgical information
    Main surgical procedure< 0.001c
    Pancreaticoduodenectomy98132
    Pancreaticocaudectomy14348
    Others187
Method of surgery< 0.001c
    Laparoscope11349
    Open146138
Time of surgery (min)282.61 ± 116.72354.89 ± 124.67< 0.001c
Bleeding (mL)198.38 ± 168.88218.29 ± 150.360.199
Inflammatory-nutritional markers
    AGR1.42 ± 0.241.44 ± 0.250.337
    PNI47.84 ± 5.7246.43 ± 5.410.008b
    SII643.27 ± 476.16815.72 ± 660.210.003b
    NLR3.13 ± 1.963.67 ± 2.200.007b
    PLR149.93 ± 70.93174.77 ± 79.25< 0.001c
    NRI103.90 ± 9.50102.44 ± 8.930.102
    GNRI102.69 ± 9.40101.26 ± 8.820.103
Table 3 Multivariable logistic regression analysis between clinical characteristics and recovery
Characteristics
OR (95%CI)
P value
Age (years)1.037 (1.013-1.063)0.003b
Main surgical procedure
(Pancreaticocaudectomy vs Pancreaticoduodenectomy)
0.366 (0.217-0.618)< 0.001c
Time of surgery (h)1.172 (1.032-1.332)0.015a
Ln (SII)1.407 (1.006-1.969)0.046a
Table 4 Univariable and multivariable Cox regression analysis of recurrence-free survival
CharacteristicsUnivariable analysis
Multivariable analysis
HR
P value
HR
P value
Demographics
    Age (years)1.001 (0.985-1.018)0.862
    Gender (male/female)1.071 (0.804-1.425)0.641
    BMI (kg/m2)0.973 (0.929-1.018)0.232
    Smoke (yes/no)1.007 (0.748-1.356)0.963
    Hypertension (yes/no)0.829 (0.623-1.104)0.199
    Type 2 diabetes (yes/no)0.923 (0.678-1.257)0.610
Tumor biomarkers
    sCA19-9 (U/mL) ≥ 37 vs < 371.164 (0.821-1.652)0.394
    sCA125 (U/mL) ≥ 35 vs < 351.277 (0.892-1.828)0.181
Tumor features
    Location (body/tail vs head/neck)0.854 (0.636-1.146)0.293
Degree of differentiation0.014a
    Poor2.455 (1.321-4.565)0.005e
    Moderate1.908 (1.048-3.474)0.035d
    WellReference
Tumor stage (TNM)< 0.001c< 0.001c
    Early stage (Ⅰ) 0.397 (0.253-0.621)< 0.001f0.384 (0.241-0.612)< 0.001f
    Middle stage (Ⅱ/Ⅲ)0.640 (0.413-0.993)0.046d0.613 (0.388-0.967)0.035d
    Advanced stage (Ⅳ)Reference
Inflammatory-nutritional markers
    AGR0.887 (0.488-1.611)0.694
    Ln (PNI)0.203 (0.062-0.665)0.008b0.256 (0.076-0.863)0.028a
    Ln (SII)1.276 (1.019-1.597)0.034a
    Ln (NLR)1.439 (1.102-1.880)0.008b
    Ln (PLR)1.443 (1.033-2.016)0.031a
    Ln (NRI)0.299 (0.066-1.352)0.117
    Ln (GNRI)0.299 (0.066-1.353)0.117
Table 5 Univariable and multivariable Cox regression analysis of overall survival
Characteristics
Univariable analysis
Multivariable analysis
HR
P value
HR
P value
Demographics
    Age (years)1.027 (1.009-1.046)0.004b1.021 (1.000-1.041)0.046a
    Gender (male/female)1.148 (0.845-1.561)0.377
    BMI (kg/m2)0.932 (0.886-0.980)0.006b
    Smoke (yes/no)1.280 (0.941-1.740)0.115
    Hypertension (yes/no)0.843 (0.621-1.145)0.275
    Type 2 diabetes (yes/no)0.996 (0.718-1.382)0.982
Tumor biomarkers
    sCA19-9 (U/mL) ≥ 37 vs < 371.283 (0.880-1.871)0.195
    sCA125 (U/mL) ≥ 35 vs < 351.413 (0.974-2.049)0.068
Tumor features
    Location (body/tail vs head/neck)0.663 (0.482-0.911)0.011a
Degree of differentiation0.003b0.012a
    Poor2.804 (1.433-5.487)0.003e2.369 (1.200-4.675)0.013d
    Moderate1.899 (0.985-3.661)0.0561.592 (0.822-3.084)0.168
    WellReference
Tumor stage (TNM)< 0.001c0.001c
    Early stage (Ⅰ) 0.405 (0.260-0.632)< 0.001f0.448 (0.281-0.715)< 0.001f
    Middle stage (Ⅱ/Ⅲ)0.725 (0.474-1.109)0.1380.737 (0.473-1.149)0.178
    Advanced stage (Ⅳ)Reference
Inflammatory-nutritional markers
    AGR0.415 (0.212-0.813)0.010a
    Ln (PNI)0.025 (0.008-0.079)< 0.001c0.048 (0.015-0.155)< 0.001c
    Ln (SII)1.432 (1.122-1.829)0.004b
    Ln (NLR)1.788 (1.344-2.378)< 0.001c
    Ln (PLR)1.839 (1.277-2.647)0.001b
    Ln (NRI)0.018 (0.004-0.078)< 0.001c
    Ln (GNRI)0.018 (0.004-0.079)< 0.001c