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Table 1 Characteristics and demographics of patients with rectal adenocarcinoma undergoing surgery

From: Nomogram to predict cause-specific mortality of patients with rectal adenocarcinoma undergoing surgery: a competing risk analysis

Variables Classification Total (%) Cause-specific death (%) Death due to other causes (%)
n   22,879 5735 (25.07) 2529 (11.05)
Age (mean ± SD)   61.46 ± 12.988 63.33 ± 13.70 71.55 ± 11.60
Age     
  < 65 13,534 (59.15) 3391 (59.13) 1564 (61.84)
  ≥ 65 9345 (40.85) 2344 (40.87) 965 (38.16)
Race     
  White 18,627 (81.42) 4587 (79.98) 2117 (83.71)
  Black 1768 (7.73) 554 (9.66) 196 (7.75)
  Other 2484 (10.86) 594 (10.36) 216 (8.54)
Sex     
  Male 13,766 (60.17) 3506 (61.13) 1556 (61.53)
  Female 9113 (39.83) 2229 (38.87) 973 (38.47)
MS     
  Married 14,077 (61.53) 3169 (55.26) 1348 (53.30)
  Unmarried 8802 (38.47) 2566 (44.74) 1181 (46.70)
AJCC     
  I 4517 (19.74) 472 (8.23) 700 (27.68)
  II 6515 (28.48) 1165 (20.31) 855 (33.81)
  III 9595 (41.94) 2611 (45.53) 847 (33.49)
  IV 2252 (9.84) 1487 (25.93) 127 (5.02)
TS     
  < 4 cm 10,086 (44.08) 2155 (37.58) 1083 (42.82)
  4–8 cm 10,936 (47.80) 3000 (52.31) 1283 (50.73)
  ≥ 8 cm 1857 (8.12) 580 (10.11) 163 (6.45)
LN     
  0 14,198 (62.06) 2253 (39.29) 1747 (69.08)
  1–3 5330 (23.30) 1752 (30.55) 503 (19.89)
  4–8 2375 (10.38) 1117 (19.48) 218 (8.62)
  > 8 976 (4.27) 613 (10.69) 61 (2.41)
Radiation     
  None 7557 (33.03) 2126 (37.07) 1259 (49.78)
  Yes 15,322 (66.97) 3609 (62.93) 1270 (50.22)
Chemotherapy     
  None 6247 (27.30) 1468 (25.60) 1243 (49.15)
  Yes 16,632 (72.70) 4267 (74.40) 1286 (50.85)
  1. MS, marital status; TS, tumor size; LN, number of metastasis lymph nodes