Table. 1.

Demographics of the study population

Variable Non-responder (n = 255) Responder (n = 258) P value
Age (yr) 58.0 (51.0-66.0) 60.0 (51.0-67.0) 0.163
Sex (M/F) 165 (64.7)/90 (35.3) 168 (65.1)/90 (34.9) 0.927
BMI (kg/m2) 20.7 (18.6-22.5) 20.3 (18.9-22.3) 0.926
Hypertension 67 (26.3) 60 (23.3) 0.428
Diabetes 73 (28.6) 54 (20.9) 0.043
History of upper abdominal surgery 137 (53.7) 112 (43.4) 0.019
Origin (biliary/pancreas/liver/stomach/other) 54 (21.2)/143 (56.1)/9 (3.5)/16 (6.3)/33 (12.9) 63 (24.4)/141 (54.7)/18 (7.0)/7 (2.7)/29 (11.2) 0.113
Metastasis 234 (91.8) 233 (90.3) 0.564
Tumor invasion and metastasis in upper abdomen 233 (91.4) 238 (92.6) 0.713
Celiac metastasis 69 (27.1) 92 (35.7) 0.036
Pain location (abdominal/back/both) 86 (33.7)/121 (47.5)/48 (18.8) 103 (39.9)/114 (44.2)/41 (15.9) 0.321
Pain duration (mo) 4.0 (1.0-9.0) 4.0 (2.0-9.0) 0.674
Basal pain intensity (NRS score) 6.0 (4.0-7.0) 6.0 (4.0-8.0) 0.094
Daily oral morphine equivalent dose (mg) 226.0 (75.0-381.0) 224.0 (73.5-397.5) 0.850

Values are presented as median (interquartile range) or numbers (%).

M: male, F: female, BMI: body mass index, NRS: numerical rating scale.

Korean J Pain 2021;34:479~486 https://doi.org/10.3344/kjp.2021.34.4.479
© Korean J Pain