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. 2023 Apr 20;12(5):1128–1144. doi: 10.21037/tcr-22-2459

Table 1. Demographic and clinical characteristics for lung metastases patients of non-surgery and surgery.

Subject characteristics Total, n (%) Non-surgery, n (%) Surgery, n (%) χ2/Z P value
All patients 118,088 (100.00) 99,400 (100.00) 18,688(100.00)
Age, years 71.33 <0.001
   ≤18 979 (0.83) 305 (0.31) 674 (3.61)
   19–40 4,050 (3.43) 2,281 (2.29) 1,769 (9.47)
   41–64 42,972 (36.39) 34,938 (35.15) 8,024 (42.94)
   ≥65 70,097 (59.35) 61,876 (62.25) 8,221 (43.99)
Sex 86.82 <0.001
   Male 60,907 (51.58) 51,713 (50.03) 9,194 (49.20)
   Female 57,181 (48.42) 47,687 (49.97) 9,494 (50.80)
Race 72.25 <0.001
   White 91,927 (77.85) 77,172 (77.64) 14,775 (79.06)
   Black 15,385 (13.03) 13,198 (13.28) 2,187 (11.70)
   Others* 10,482 (8.88) 8,812 (8.87) 1,670 (8.94)
   Unknown 274 (0.23) 218 (0.22) 56 (0.30)
Marital status 1,295.19 <0.001
   Married 56,233 (47.62) 46,897 (47.18) 9,336 (49.96)
   Unmarried 56,431 (47.79) 47,874 (48.16) 8,557 (45.79)
   Unknown 5,424 (4.59) 4,629 (4.66) 795 (4.25)
Insurance 66.20 <0.001
   Insured 111,218 (94.18) 93,521 (94.09) 17,697 (94.70)
   Uninsured 4,568 (3.87) 3,841 (3.86) 727 (3.89)
   Unknown 2,302 (1.95) 2,038 (2.05) 264 (1.41)
Income 3.04 0.002
   <6,000 28,325 (23.99) 24,090 (24.24) 4,235 (22.66)
   6,000–7,000 35,641 (30.18) 29,830 (30.01) 5,811 (31.10)
   7,000–8,000 16,864 (14.28) 14,103 (14.19) 2,761 (14.77)
   >8,000 37,255 (31.55) 31,375 (31.56) 5,880 (31.47)
Laterality 1,951.55 <0.001
   Right 35,852 (30.36) 31,169 (31.36) 4,683 (25.06)
   Left 29,051 (24.60) 24,577 (24.72) 4,474 (23.94)
   Bilateral 3,687 (3.12) 3,062 (3.08) 625 (3.34)
   Unknown 49,498 (41.92) 40,592 (40.84) 8,906 (47.66)
Grade 97.84 <0.001
   I 3,291 (2.79) 2,571 (2.59) 720 (3.85)
   II 16,654 (14.10) 12,368 (12.44) 4,286 (22.94)
   III 24,478 (20.73) 19,297 (19.41) 5,181 (27.73)
   IV 6,212 (5.26) 2,885 (2.91) 3,327 (17.80)
   Unknown 67,450 (57.12) 62,277 (62.65) 5,173 (27.68)
T stage 68.69 <0.001
   T1 11,166 (9.46) 9,022 (9.08) 2,144 (11.47)
   T2 16,070 (13.61) 12,732 (12.81) 3,338 (17.86)
   T3 28,352 (24.01) 21,531 (21.66) 6,821 (36.50)
   T4 35,547 (30.10) 31,058 (31.25) 4,489 (24.02)
   Unknown 26,953 (22.82) 25,057 (25.21) 1,896 (10.15)
N stage 63.24 <0.001
   N0 36,542 (30.94) 28,810 (28.98) 7,732 (41.37)
   N1 24,467 (20.72) 19,316 (19.43) 5,151 (27.56)
   N2 25,395 (21.51) 22,318 (22.45) 3,077 (16.47)
   N3 13,226 (11.20) 12,429 (12.50) 797 (4.26)
   Unknown 18,458 (15.63) 16,527 (16.63) 1,931 (10.33)
Bone MET 3,186.79 <0.001
   None 81,588 (69.09) 66,229 (66.63) 15,359 (82.19)
   Yes 32,925 (27.88) 29,940 (30.12) 2,985 (15.97)
   Unknown 3,575 (3.03) 3,231 (3.25) 344 (1.84)
Brain MET 2,184.96 <0.001
   None 99,823 (84.53) 82,478 (81.98) 17,345 (92.81)
   Yes 13,934 (17.80) 13,005 (13.08) 929 (4.97)
   Unknown 4,331 (3.67) 3,917 (3.94) 414 (2.22)
Liver MET 1,168.42 <0.001
   None 76,782 (65.02) 63,119 (63.50) 13,663 (73.11)
   Yes 37,991 (32.17) 33,269 (33.47) 4,722 (25.27)
   Unknown 3,315 (2.81) 3,012 (3.03) 303 (1.62)
Cancer system
   Oral cavity and pharynx 1,690 (1.43) 1,440 (1.45) 250 (1.34)
   Digestive system 31,829 (26.95) 27,171 (27.34) 4,658 (24.93)
   Respiratory system 47,679 (40.38) 45,156 (45.43) 1,523 (8.15)
   Bones and joints 626 (0.53) 318 (0.32) 308 (1.65)
   Soft tissue including heart 1,800 (1.52) 1,154 (1.16) 646 (3.46)
   Skin excluding basal squamous 2,777 (2.35) 2,039 (2.05) 738 (3.95)
   Breast 7,777 (6.59) 6,090 (6.13) 1,687 (9.03)
   Female genital system 6,478 (5.49) 4,064 (4.09) 2,414 (12.92)
   Male genital system 3,710 (3.14) 2,330 (2.34) 1,380 (7.38)
   Urinary system 10,652 (9.02) 6,611 (6.65) 4,041 (21.62)
   Eye and orbit 39 (0.03) 20 (0.02) 19 (0.10)
   Brain and other nervous system 63 (0.05) 30 (0.03) 33 (0.18)
   Endocrine system 1,768 (1.50) 947 (0.95) 821 (4.39)
   Lymphoma 571 (0.48) 498 (0.50) 73 (0.39)
   Myeloma 59 (0.05) 50 (0.05) 9 (0.05)
   Leukemia 111 (0.09) 93 (0.09) 18 (0.10)
   Mesothelioma 456 (0.39) 298 (0.30) 58 (0.31)
   Kaposi sarcoma 18 (0.02) 16 (0.02) 2 (0.01)
   Miscellaneous 85 (0.07) 75 (0.08) 10 (0.05)
Overall survival 8,038.88 <0.001
   Survival 23,353 (19.78) 16,090 (16.19) 7,263 (38.86)
   Death 94,735 (80.22) 83,310 (83.81) 11,425 (61.14)

*, American Indian/Alaska Native, Asian or Pacific Islander. MET, metastases.