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Table 1 Characteristics of Patients Undergoing Hepatobiliary Surgery from 2009 to 2015, by Year

From: In-hospital mortality and failure to rescue following hepatobiliary surgery in Germany - a nationwide analysis

   2009 2010 2011 2012 2013 2014 2015
Total Number of Patients N 4090 4283 4466 4654 4583 4606 4432
 Minor Resection N (%) 1833 (44.82) 1864 (43.52) 1915 (42.88) 2065 (44.37) 2045 (44.62) 2042 (44.33) 2077 (46.86)
 Major Resection N (%) 2257 (55.18) 2419 (56.48) 2551 (57.12) 2589 (55.63) 2538 (55.38) 2564 (55.67) 2355 (53.14)
Annual Number of Hospitalsa N 494 482 493 503 521 493 496
Demographics
 Age (Years) Mean ± STD 62.86 ± 12.38 62.85 ± 12.68 62.83 ± 12.65 63.24 ± 12.75 63.21 ± 12.84 63.25 ± 1 2.68 63.33 ± 12.93
 Age ≥ 65 Years N (%) 2183 (53.37) 2239 (52.28) 2281 (51.07) 2472 (53.12) 2390 (52.15) 2396 (52.02) 2325 (52.46)
 Female Sex N (%) 1827 (44.67) 1849 (43.17) 1914 (42.86) 2081 (44.71) 1972 (43.03) 1975 (42.88) 1907 (43.03)
Underlying disease
 Metastatic Disease N (%) 1916 (46.85) 2040 (47.63) 2023 (45.3) 2067 (44.41) 2022 (44.12) 2022 (43.9) 1919 (43.3)
 Malignant Hepatobiliary Neoplasm N (%) 1169 (28.58) 1317 (30.75) 1441 (32.27) 1505 (32.34) 1540 (33.6) 1568 (34.04) 1471 (33.19)
 Benign Hepatobiliary Disease N (%) 312 (7.63) 325 (7.59) 365 (8.17) 366 (7.86) 371 (8.1) 369 (8.01) 348 (7.85)
 Other Medical Indication N (%) 693 (16.94) 601 (14.03) 637 (14.26) 716 (15.38) 650 (14.18) 647 (14.05) 694 (15.66)
Type of Surgery
 Trisectionectomy N (%) 394 (9.63) 472 (11.02) 444 (9.94) 486 (10.44) 509 (11.11) 498 (10.81) 483 (10.9)
 Hemihepatectomy N (%) 1863 (45.55) 1947 (45.46) 2107 (47.18) 2103 (45.19) 2029 (44.27) 2066 (44.85) 1872 (42.24)
 Multiple Segmentectomy N (%) 1163 (28.44) 1206 (28.16) 1219 (27.3) 1275 (27.4) 1140 (24.87) 1150 (24.97) 1165 (26.29)
 Bisegmentectomy N (%) 670 (16.38) 658 (15.36) 696 (15.58) 790 (16.97) 905 (19.75) 892 (19.37) 912 (20.58)
Extent of Surgery
 Resection of Arteries/Veins N (%) 330 (8.07) 402 (9.39) 416 (9.31) 415 (8.92) 436 (9.51) 415 (9.01) 371 (8.37)
 Biliodigestive Anastomosis N (%) 117 (2.86) 136 (3.18) 211 (4.72) 195 (4.19) 173 (3.77) 184 (3.99) 180 (4.06)
 Resection of Other Organ N (%) 389 (9.51) 405 (9.46) 425 (9.52) 416 (8.94) 431 (9.4) 424 (9.21) 437 (9.86)
  1. STD Standard Deviation
  2. aThat Performed at Least one Hepatobiliary Resection