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Table 1 Patient characteristics

From: Retrospective analyses of trends in pancreatic surgery: indications, operative techniques, and postoperative outcome of 1,120 pancreatic resections

  1994 to 2001 2001 to 2006 2007 to 2012 P value
Number of resections 363 305 452  
Gender Male 245 (67.5%) Male 158 (51.8%) Male 248 (54.9%) <0.001
Female 118 (32.5%) Female 147 (48.2%) Female 204 (45.1%)
Age 51 (15 to 77) 64 (9 to 84) 65 (17 to 89) <0.001
Body mass index 22.8 (14 to 35) 23.6 (15 to 36) 24.4 (15 to 41) <0.001
Nicotine Not determined Yes 56 (31.6%) Yes 121 (27.5%) Not significant
No 121 (68.4%) No 319 (72.5%)
Not determined 128 Not determined 12
ASA physical status Not determined I 13 (7.7%) I 30 (6.9%) Not significant
II 106 (62.7%) II 242 (55.8%)  
III 49 (29.0%) III 153 (35.3%)
IV 1 (0.6%) IV 9 (2.1%)
Not determined 136 Not determined 18
Dignity of disease Benign 226 (62.3%) Benign 109 (35.7%) Benign 163 (36.1%) <0.001
Malignant 137 (37.7%) Malignant 196 (64.3%) Malignant 289 (63.9%)
  1. Number (percentage) or median (95% CI). ASA, American Society of Anesthesiologists.