Observational Study
Copyright ©The Author(s) 2017.
World J Gastroenterol. Mar 14, 2017; 23(10): 1872-1880
Published online Mar 14, 2017. doi: 10.3748/wjg.v23.i10.1872
Table 1 Clinical features and metastatic sites n (%)
FeaturesBone metastases
P valueLiver metastases
P valueLung metastases
P valueDistant lymph nodes
P valueBrain metastases
P value
YesNoYesNoYesNoYesNoYesNo
Age (yr)0.002< 0.00010.008< 0.00010.636
< 65396 (7.7)4724 (92.3)3996 (78.0)1124 (22.0)961 (18.8)4159 (81.2)569 (11.1)4551 (88.9)37 (0.7)5083 (99.3)
≥ 65514 (6.3)7599 (93.7)6092 (75.1)2021 (24.9)1677 (20.7)6463 (79.3)677 (8.3)7436 (91.7)53 (0.7)8060 (99.3)
Race0.0760.0010.3120.0590.314
White727 (9.6)9734 (93.1)7974 (76.2)2487 (23.8)2106 (20.1)8355 (79.9)1005 (9.6)9456 (90.4)71 (0.7)10390 (99.3)
Black105 (5.9)1661 (94.1)1388 (78.6)378 (21.4)329 (18.6)1437 (81.4)140 (7.9)1626 (92.1)16 (0.9)1750 (99.1)
Others928 (93)78 (7.0)726 (73.0)280 (27.0)203 (19.0)803 (81.0)905 (90.0)101 (10.0)3 (0.2)1003 (99.8)
Gender0.002< 0.00010.0200.0280.770
Male636 (7.5)6613 (92.5)5565 (77.8)1584 (22.2)1372 (19.2)5777 (80.8)710 (9.9)6439 (90.1)50 (0.7)7099 (99.3)
Female374 (6.1)5710 (93.9)4523 (74.3)1561 (25.7)1266 (20.8)4818 (79.2)536 (8.8)5548 (91.2)40 (0.7)6044 (99.3)
Location of the primary0.0010.084< 0.00010.0030.024
Head269 (5.8)4387 (94.2)3580 (76.9)1076 (23.1)828 (17.2)3828 (82.2)480 (10.3)4176 (89.7)21 (0.5)4635 (99.5)
Body/tail340 (7.2)4408 (92.8)3638 (76.6)1110 (23.4)961 (20.2)3787 (79.8)394 (8.3)4354 (91.7)33 (0.7)4715 (99.3)
Unknown301 (7.9)3528 (92.1)2870 (75.0)959 (25.0)849 (22.2)2980 (77.8)372 (9.7)3457 (90.3)36 (0.9)3793 (99.1)
Marital status0.0830.8950.0830.0140.189
Married512 (7.1)6720 (92.9)5510 (76.2)1722 (23.8)1402 (19.4)5830 (80.6)722 (10.0)6510 (90.0)43 (0.6)7189 (99.4)
Unmarried398 (6.6)5603 (93.4)4578 (76.3)1423 (23.7)1236 (20.6)4765 (79.4)524 (8.7)5477 (91.3)47 (0.8)5954 (99.2)
T stage< 0.0001< 0.00010.003< 0.0001< 0.0001
T129 (8.9)296 (91.1)242 (74.5)83 (25.5)59 (18.2)266 (81.8)23 (7.1)302 (92.9)3 (0.9)322 (99.1)
T2209 (6.7)3079 (93.6)2705 (82.3)583 (17.7)595 (18.1)2693 (81.9)277 (8.4)3011 (91.6)17 (0.5)3271 (99.5)
T3200 (5.5)3460 (94.5)2699 (73.7)961 (26.3)711 (19.4)2949 (80.6)345 (9.4)3315 (90.6)11 (0.3)3649 (99.7)
T4153 (6.8)2106 (93.2)1611 (71.3)648 (28.7)504 (22.3)1755 (77.7)278 (12.3)1981 (87.7)13 (0.6)2246 (99.4)
Tx319 (9.0)3382 (91.0)2831 (76.0)870 (24.0)769 (20.5)2932 (79.5)323 (10.0)3378 (90.0)46 (1.2)3655 (98.8)
N stage< 0.00010.788< 0.0001< 0.00010.089
N0395 (5.8)6424 (94.2)5210 (76.4)1609 (23.6)1143 (16.8)5676 (83.2)310 (4.5)6509 (95.5)36 (0.5)6783 (99.5)
N1354 (8.7)3729 (91.3)3097 (75.9)986 (24.1)1018 (24.9)3065 (75.1)811 (19.9)3272 (80.1)34 (0.8)4049 (99.2)
Nx161 (6.9)2170 (93.1)1781 (76.4)550 (23.6)477 (20.5)1854 (79.5)125 (5.4)2206 (94.5)20 (0.9)2311 (99.1)
Surgery of the primary0.035< 0.00010.0060.2650.422
Yes7 (3.1)218 (96.9)112 (49.8)113 (50.2)26 (11.6)199 (88.4)15 (6.7)210 (93.3)0 (0)225 (100.0)
No903 (7.0)12105 (93.0)9976 (76.7)3033 (23.3)2612 (20.1)10369 (79.9)1231 (9.5)11777 (90.5)90 (0.7)12918 (99.3)
Surgery of the metastases0.808< 0.00010.002< 0.00010.503
Yes38 (6.6)534 (93.4)288 (50.3)284 (49.7)81 (14.2)491 (85.8)91 (15.9)481 (84.1)6 (1.0)566 (99.0)
No872 (6.7)11789 (93.3)9800 (77.4)2861 (22.6)2557 (20.2)10104 (79.8)1155 (9.1)11506 (90.9)84 (0.7)12577 (99.3)