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.