Retrospective Study
Copyright ©The Author(s) 2022.
World J Clin Oncol. May 24, 2022; 13(5): 352-365
Published online May 24, 2022. doi: 10.5306/wjco.v13.i5.352
Table 1 Baseline characteristics and age groups (total 225 patients)
Factor
Group

Alive (%)
P value
< 20
20-59
60+
P value
n (%)22567 (29.8)62 (27.5)114 (50.7)49 (21.8)
Median age (IQR)27 (19-56)15.5 (13-17)28.5 (23-44)69.0 (65-76)
Male (%)141 (62.7)42 (29.8)0.9933 (23.4)74 (52.5)34 (24.1)0.17
Race (%)White124 (55.1)39 (31.5)0.6634 (27.4)67 (54.3)23 (18.6)0.07
Black 27 (12.0)8 (29.6)6 (22.2)16 (59.3)5 (18.5)
API22 (9.8)4 (18.2)3 (13.6)9 (40.9)10 (45.5)
Hispanic52 (23.1)16 (30.8)19 (36.5)22 (42.3)11 (21.2)
Household income (%)< $5500055 (24.4)20 (36.4)0.4716 (29.1)32 (58.2)7 (12.7)0.37
$55000-7000088 (39.1)24 (27.8)26 (29.6)40 (45.5)22 (25.0)
> $70,00082 (36.4)23 (28.0)20 (24.4)42 (51.2)20 (24.4)
Living settings (%)Population > 1 million144 (61.0)36 (25.0)0.0438 (26.4)71 (49.3)35 (24.3)0.47
Other81 (36.0)31 (38.3)24 (29.6)43 (53.1)14 (17.3)
Stages (%)I65 (28.9)32 (49.2)< 0.00113 (20)29 (44.6)23 (35.4)0.02
II18 (8.0)8 (44.4)7 (38.9)7 (38.9)4 (22.2)
III61 (27.1)19 (31.1)20 (32.8)32 (25.5)9 (14.8)
IV61 (27.1)2 (3.3)20 (32.8)34 (55.7)7 (11.5)
Unknown20 (8.9)6 (30.0)2 (10.0)12 (60.0)6 (30.0)
Lymph Node status (%)N0143 (63.6)52 (36.4)0.00935 (24.5)68 (47.6)40 (28.0)0.004
N160 (26.7)13 (21.7)24 (40.0)32 (53.3)4 (6.7)
Nx22 (9.78)2 (9.1)3 (13.6)14 (63.6)5 (22.7)
Metastasis status (%)M0154 (68.4)64 (41.6)< 0.00141 (26.6)74 (48.05)39 (25.3)0.16
M161 (27.1)2 (3.3)20 (32.8)34 (55.7)7 (11.5)
Mx10 (4.4)1 (10.0)1 (10.0)6 (60.0)3 (30.0)
Surgery (%)Wedge/segmental resection39 (17.8)23 (59.0)< 0.00115 (38.5)17 (43.6)7 (18.0)< 0.001
Lobectomy42 (19.2)21 (50.0)23 (43.4)23 (54.8)3 (7.1)
Extended lobectomy11 (5.0)6 (54.5)7 (63.6)4 (36.4)0 (0)
Transplant 19 (8.7)7 (36.8)6 (31.6)13 (68.4)0 (0)
None108 (49.3)10 (9.3)18 (16.7)54 (50.0)36 (33.3)
Table 2 Summary of Characteristics by Race (Total 225 patients)
Factor
Group
Total
White
Black
API
Hispanic
P value
n (%)225124 (55.1)27 (12.0)22 (9.8)52 (23.1)
Median age (IQR)27 (19-56)27.0 (19-54.5)32.0 (21-55)52.0 (27-70)23.0 (17-53.5)0.04
Age groups (%)≤ 1962 (27.5)34 (54.8)6 (9.7)3 (4.8)19 (30.7)0.07
20-59114 (50.7)67 (58.8)16 (14.0)9 (7.9)22 (19.3)
≥ 6049 (21.8)23 (46.9)5 (10.2)10 (20.4)11 (22.5)
Male (%)141 (62.7)75 (53.2)18 (12.8)14 (9.9)34 (24.1)0.89
Household income (%)< $5500055 (24.4)34 (61.8)10 (18.2)1 (1.8)10 (18.2)0.02
$55000-7000088 (39.1)42 (47.7)6 (6.8)12 (13.6)28 (31.8)
> $7000082 (36.4)48 (58.5)11 (13.4)9 (11.0)14 (17.1)
Living settings (%)Population > 1 million144 (61.0)68 (47.2)21 (14.6)18 (12.5)37 (25.7)0.01
Other81 (36.0)56 (69.1)6 (7.4)4 (4.9)15 (18.5)
Stages (%)I65 (28.9)38 (58.5)7 (10.8)7 (10.8)13 (20.0)0.71
II18 (8.0)11 (61.1)2 (11.1)2 (11.1)3 (16.7)
III61 (27.1)30 (49.2)7 (11.5)3 (4.9)21 (34.4)
IV61 (27.1)34 (55.7)7 (11.5)8 (13.1)12 (19.7)
Unknown20 (8.9)11 (55.0)4 (20.0)2 (10.0)3 (15.0)
Lymph Node status (%)N0143 (63.6)74 (51.8)16 (11.2)17 (11.9)36 (25.2)0.11
N160 (26.7)38 (63.3)5 (8.3)3 (5.0)14 (23.3)
Nx22 (9.78)12 (54.6)6 (27.3)2 (9.1)2 (9.1)
Metastasis status (%)M0154 (68.4)85 (55.2)18 (11.7)12 (7.8)39 (25.3)0.63
M161 (27.1)34 (55.7)7 (11.5)8 (13.1)12 (19.7)
Mx10 (4.4)5 (50.0)2 (20.0)2 (20.0)1 (10.0)
Surgery (%)Wedge/segmental resection39 (17.8)28 (71.8)2 (5.1) 3 (7.7)6 (15.4)0.28
Lobectomy42 (19.2)25 (59.5)6 (14.3)3 (7.1)8 (19.1)
Extended lobectomy11 (5.0)5 (45.5)0 (0)1 (9.1)5 (45.5)
Transplant 19 (8.7)12 (63.2)2 (10.5)1 (5.3)4 (21.1)
None108 (49.3)49 (45.4)17 (15.7)13 (12.0)29 (26.9)
Table 3 Summary characteristics of by surgery types (total 219 patients)
Factor
Group
None
Transplant
Wedge or segmental resection
Lobectomy
Extended lobectomy
P value
nTotal 21910819394211
AliveTotal 6710 (9.3)7 (36.8)23 (59.0)21 (50.0)6 (54.6)< 0.001
Age group (%)≤ 1918 (16.7)6 (31.6)15 (38.5)16 (38.1)7 (63.6)< 0.001
20-5954 (50.0)13 (68.4)17 (43.6)23 (54.8)4 (36.4)
≥ 6036 (33.3)0 (0)7 (18.0)3 (7.1)0 (0)
Sex (%)Male70 (64.8)12 (63.2)27 (69.2)21 (50.0)7 (63.6)0.43
Stages (%)I22 (20.4)4 (21.1)19 (48.7)15 (35.7 )2 (18.2)< 0.001
II3 (2.8)0 (0)8 (20.5)5 (11.9)2 (18.2)
III24 (22.2)10 (52.6)9 (23.1)13 (31.0)4 (36.4)
IV43 (39.8)4 (21.1)3 (7.7)8 (19.1)2 (18.2)
Unknown16 (14.8)1 (5.3)0 (0)1 (2.4)1 (9.1)
Race (%)API13 (12.0)1 (5.3)3 (7.7)3 (7.1)1 (9.1)0.28
Black17 (15.7)2 (10.5)2 (5.1)6 (14.3)0 (0)
Hispanic29 (26.9)4 (21.1)6 (15.4)8 (19.1)5 (45.5)
White49 (45.4)12 (63.2)28 (71.8)25 (59.5)5 (45.5)
Income (%)< $5500029 (26.9)3 (15.8)12 (30.8)8 (19.1)1 (9.1)0.22
$55000-7000041 (38.0)8 (42.1)15 (38.5)13 (31.0)8 (72.7)
> $7000038 (35.2)8 (42.1)12 (30.8)21 (50.0)2 (18.2)
Lymph nodes status (%)N064 (59.3)12 (63.2)32 (82.1)24 (57.1)6 (54.6)0.007
N125 (23.2)6 (31.6)7 (18.0)17 (40.5)4 (36.4)
Nx19 (17.6)1 (5.3)0(0)1 (2.4)1 (9.1)
Metastasis status (%)M056 (52.9)15 (79.0)36 (92.3)34 (81.0)8 (72.7)< 0.001
M143 (39.8)4 (21.1)3 (7.7)8 (19.1)2 (18.2)
Mx9 (8.3)0 (0)0 (0)0 (0)1 (9.1)
Population (%)≥ 1 million76 (70.4)13 (68.4)21 (53.9)24 (57.1)7 (63.6)0.32
Others32 (29.7)6 (31.6)18 (46.2)18 (42.9)4 (36.4)
Size (%)≤ 50 mm18 (16.7)1 (5.3)12 (30.8)6 (14.3)1 (9.1)< 0.001
51-100 mm25 (23.2)5 (26.3)15 (38.5)14 (33.3)3 (27.3)
≥ 100 mm37 (34.3)11 (57.9)10 (25.6)21 (50.0)7 (63.6)
Unknown28 (25.9)2 (10.5)2 (5.1)1 (2.4)0 (0)
Table 4 Multivariate Cox regression analysis
Hazard ratioStandard errorP value
Age group (%)20-590.9310.3270.83
≥ 602.5540.5570.09
Sex (%)Male1.1690.2880.59
Race (%)API0.6240.5810.42
Black2.2960.4610.07
Hispanic0.90.3680.78
Income (%)$55000-700001.0440.3680.91
> $700000.6440.3450.2
SugerySurgery1.4650.4720.42
Population (%)≥ 1 million1.2090.2870.51
Size (%)≥ 100 mm1.1040.440.82
51-100 mm1.2330.4260.62
Unknown3.1960.6460.07
Lymph nodes (%)N11.5030.390.3
Nx0.1070.9930.02
Metastasis status (%)M10.3010.7820.13
Mx7.5031.3660.14