Retrospective Cohort Study
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©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.
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) ≥ 37 336 (75.3%) < 37 102 (22.9%) Unknow 8 (1.8%) sCA125 (U/mL) ≥ 35 83 (18.6%) < 35 341 (76.5%) Unknow 22 (4.9%) Tumor features Location Head 217 (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 Ⅰ 198 (44.4%) Ⅱ 139 (31.2%) Ⅲ 58 (13.0%) Ⅳ 51 (11.4%) Surgical information Main surgical procedure Pancreaticoduodenectomy 230 (51.6%) Pancreaticocaudectomy 191 (42.8%) Others 25 (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 AGR 1.42 (1.27-1.59) PNI 47.75 (43.89-51.11) SII 563.12 (367.88-894.94) NLR 2.74 (2.13-3.97) PLR 146.88 (107.55-195.98) NRI 104.02 (97.85-109.90) GNRI 102.86 (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 valueDemographics Age (years) 64.01 ± 8.57 66.58 ± 9.23 0.003b Gender (male/female) 147/112 99/88 0.424 BMI (kg/m2 ) 22.76 ± 3.12 22.54 ± 2.81 0.453 Smoke (yes/no) 103/156 63/124 0.190 Hypertension (yes/no) 108/151 101/86 0.010a Diabetes (yes/no) 67/192 63/124 0.073 Tumor features Location < 0.001c Head 90 127 Neck 23 6 Body 53 16 Tail 45 13 Both body and tail 35 15 Others 13 10 Degree of differentiation 0.320 Poor 85 57 Moderate 132 107 Well 30 13 Unknow 12 10 TNM stage 0.942 Ⅰ 116 82 Ⅱ 80 59 Ⅲ 32 26 Ⅳ 31 20 Surgical information Main surgical procedure < 0.001c Pancreaticoduodenectomy 98 132 Pancreaticocaudectomy 143 48 Others 18 7 Method of surgery < 0.001c Laparoscope 113 49 Open 146 138 Time of surgery (min) 282.61 ± 116.72 354.89 ± 124.67 < 0.001c Bleeding (mL) 198.38 ± 168.88 218.29 ± 150.36 0.199 Inflammatory-nutritional markers AGR 1.42 ± 0.24 1.44 ± 0.25 0.337 PNI 47.84 ± 5.72 46.43 ± 5.41 0.008b SII 643.27 ± 476.16 815.72 ± 660.21 0.003b NLR 3.13 ± 1.96 3.67 ± 2.20 0.007b PLR 149.93 ± 70.93 174.77 ± 79.25 < 0.001c NRI 103.90 ± 9.50 102.44 ± 8.93 0.102 GNRI 102.69 ± 9.40 101.26 ± 8.82 0.103
Table 3 Multivariable logistic regression analysis between clinical characteristics and recovery
Characteristics OR (95%CI) P valueAge (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
Characteristics Univariable analysis Multivariable analysis HR P valueHR P valueDemographics 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 < 37 1.164 (0.821-1.652) 0.394 sCA125 (U/mL) ≥ 35 vs < 35 1.277 (0.892-1.828) 0.181 Tumor features Location (body/tail vs head/neck) 0.854 (0.636-1.146) 0.293 Degree of differentiation 0.014a Poor 2.455 (1.321-4.565) 0.005e Moderate 1.908 (1.048-3.474) 0.035d Well Reference Tumor stage (TNM) < 0.001c < 0.001c Early stage (Ⅰ) 0.397 (0.253-0.621) < 0.001f 0.384 (0.241-0.612) < 0.001f Middle stage (Ⅱ/Ⅲ) 0.640 (0.413-0.993) 0.046d 0.613 (0.388-0.967) 0.035d Advanced stage (Ⅳ) Reference Inflammatory-nutritional markers AGR 0.887 (0.488-1.611) 0.694 Ln (PNI) 0.203 (0.062-0.665) 0.008b 0.256 (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 valueHR P valueDemographics Age (years) 1.027 (1.009-1.046) 0.004b 1.021 (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 < 37 1.283 (0.880-1.871) 0.195 sCA125 (U/mL) ≥ 35 vs < 35 1.413 (0.974-2.049) 0.068 Tumor features Location (body/tail vs head/neck) 0.663 (0.482-0.911) 0.011a Degree of differentiation 0.003b 0.012a Poor 2.804 (1.433-5.487) 0.003e 2.369 (1.200-4.675) 0.013d Moderate 1.899 (0.985-3.661) 0.056 1.592 (0.822-3.084) 0.168 Well Reference Tumor stage (TNM) < 0.001c 0.001c Early stage (Ⅰ) 0.405 (0.260-0.632) < 0.001f 0.448 (0.281-0.715) < 0.001f Middle stage (Ⅱ/Ⅲ) 0.725 (0.474-1.109) 0.138 0.737 (0.473-1.149) 0.178 Advanced stage (Ⅳ) Reference Inflammatory-nutritional markers AGR 0.415 (0.212-0.813) 0.010a Ln (PNI) 0.025 (0.008-0.079) < 0.001c 0.048 (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