Sempokuya T, Forlemu A, Azawi M, Silangcruz K, Khoury N, Ma J, Wong LL. Survival characteristics of fibrolamellar hepatocellular carcinoma: A Surveillance, Epidemiology, and End Results database study. World J Clin Oncol 2022; 13(5): 352-365 [PMID: 35662983 DOI: 10.5306/wjco.v13.i5.352]
Corresponding Author of This Article
Tomoki Sempokuya, MD, Doctor, Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Nebraska Medical Center, 982000 Nebraska Medical Center, Omaha, NE 68198, United States. tsempoku@hawaii.edu
Research Domain of This Article
Gastroenterology & Hepatology
Article-Type of This Article
Retrospective Study
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
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 (%)
225
67 (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)
0.99
33 (23.4)
74 (52.5)
34 (24.1)
0.17
Race (%)
White
124 (55.1)
39 (31.5)
0.66
34 (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)
API
22 (9.8)
4 (18.2)
3 (13.6)
9 (40.9)
10 (45.5)
Hispanic
52 (23.1)
16 (30.8)
19 (36.5)
22 (42.3)
11 (21.2)
Household income (%)
< $55000
55 (24.4)
20 (36.4)
0.47
16 (29.1)
32 (58.2)
7 (12.7)
0.37
$55000-70000
88 (39.1)
24 (27.8)
26 (29.6)
40 (45.5)
22 (25.0)
> $70,000
82 (36.4)
23 (28.0)
20 (24.4)
42 (51.2)
20 (24.4)
Living settings (%)
Population > 1 million
144 (61.0)
36 (25.0)
0.04
38 (26.4)
71 (49.3)
35 (24.3)
0.47
Other
81 (36.0)
31 (38.3)
24 (29.6)
43 (53.1)
14 (17.3)
Stages (%)
I
65 (28.9)
32 (49.2)
< 0.001
13 (20)
29 (44.6)
23 (35.4)
0.02
II
18 (8.0)
8 (44.4)
7 (38.9)
7 (38.9)
4 (22.2)
III
61 (27.1)
19 (31.1)
20 (32.8)
32 (25.5)
9 (14.8)
IV
61 (27.1)
2 (3.3)
20 (32.8)
34 (55.7)
7 (11.5)
Unknown
20 (8.9)
6 (30.0)
2 (10.0)
12 (60.0)
6 (30.0)
Lymph Node status (%)
N0
143 (63.6)
52 (36.4)
0.009
35 (24.5)
68 (47.6)
40 (28.0)
0.004
N1
60 (26.7)
13 (21.7)
24 (40.0)
32 (53.3)
4 (6.7)
Nx
22 (9.78)
2 (9.1)
3 (13.6)
14 (63.6)
5 (22.7)
Metastasis status (%)
M0
154 (68.4)
64 (41.6)
< 0.001
41 (26.6)
74 (48.05)
39 (25.3)
0.16
M1
61 (27.1)
2 (3.3)
20 (32.8)
34 (55.7)
7 (11.5)
Mx
10 (4.4)
1 (10.0)
1 (10.0)
6 (60.0)
3 (30.0)
Surgery (%)
Wedge/segmental resection
39 (17.8)
23 (59.0)
< 0.001
15 (38.5)
17 (43.6)
7 (18.0)
< 0.001
Lobectomy
42 (19.2)
21 (50.0)
23 (43.4)
23 (54.8)
3 (7.1)
Extended lobectomy
11 (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)
None
108 (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 (%)
225
124 (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 (%)
≤ 19
62 (27.5)
34 (54.8)
6 (9.7)
3 (4.8)
19 (30.7)
0.07
20-59
114 (50.7)
67 (58.8)
16 (14.0)
9 (7.9)
22 (19.3)
≥ 60
49 (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 (%)
< $55000
55 (24.4)
34 (61.8)
10 (18.2)
1 (1.8)
10 (18.2)
0.02
$55000-70000
88 (39.1)
42 (47.7)
6 (6.8)
12 (13.6)
28 (31.8)
> $70000
82 (36.4)
48 (58.5)
11 (13.4)
9 (11.0)
14 (17.1)
Living settings (%)
Population > 1 million
144 (61.0)
68 (47.2)
21 (14.6)
18 (12.5)
37 (25.7)
0.01
Other
81 (36.0)
56 (69.1)
6 (7.4)
4 (4.9)
15 (18.5)
Stages (%)
I
65 (28.9)
38 (58.5)
7 (10.8)
7 (10.8)
13 (20.0)
0.71
II
18 (8.0)
11 (61.1)
2 (11.1)
2 (11.1)
3 (16.7)
III
61 (27.1)
30 (49.2)
7 (11.5)
3 (4.9)
21 (34.4)
IV
61 (27.1)
34 (55.7)
7 (11.5)
8 (13.1)
12 (19.7)
Unknown
20 (8.9)
11 (55.0)
4 (20.0)
2 (10.0)
3 (15.0)
Lymph Node status (%)
N0
143 (63.6)
74 (51.8)
16 (11.2)
17 (11.9)
36 (25.2)
0.11
N1
60 (26.7)
38 (63.3)
5 (8.3)
3 (5.0)
14 (23.3)
Nx
22 (9.78)
12 (54.6)
6 (27.3)
2 (9.1)
2 (9.1)
Metastasis status (%)
M0
154 (68.4)
85 (55.2)
18 (11.7)
12 (7.8)
39 (25.3)
0.63
M1
61 (27.1)
34 (55.7)
7 (11.5)
8 (13.1)
12 (19.7)
Mx
10 (4.4)
5 (50.0)
2 (20.0)
2 (20.0)
1 (10.0)
Surgery (%)
Wedge/segmental resection
39 (17.8)
28 (71.8)
2 (5.1)
3 (7.7)
6 (15.4)
0.28
Lobectomy
42 (19.2)
25 (59.5)
6 (14.3)
3 (7.1)
8 (19.1)
Extended lobectomy
11 (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)
None
108 (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
n
Total 219
108
19
39
42
11
Alive
Total 67
10 (9.3)
7 (36.8)
23 (59.0)
21 (50.0)
6 (54.6)
< 0.001
Age group (%)
≤ 19
18 (16.7)
6 (31.6)
15 (38.5)
16 (38.1)
7 (63.6)
< 0.001
20-59
54 (50.0)
13 (68.4)
17 (43.6)
23 (54.8)
4 (36.4)
≥ 60
36 (33.3)
0 (0)
7 (18.0)
3 (7.1)
0 (0)
Sex (%)
Male
70 (64.8)
12 (63.2)
27 (69.2)
21 (50.0)
7 (63.6)
0.43
Stages (%)
I
22 (20.4)
4 (21.1)
19 (48.7)
15 (35.7 )
2 (18.2)
< 0.001
II
3 (2.8)
0 (0)
8 (20.5)
5 (11.9)
2 (18.2)
III
24 (22.2)
10 (52.6)
9 (23.1)
13 (31.0)
4 (36.4)
IV
43 (39.8)
4 (21.1)
3 (7.7)
8 (19.1)
2 (18.2)
Unknown
16 (14.8)
1 (5.3)
0 (0)
1 (2.4)
1 (9.1)
Race (%)
API
13 (12.0)
1 (5.3)
3 (7.7)
3 (7.1)
1 (9.1)
0.28
Black
17 (15.7)
2 (10.5)
2 (5.1)
6 (14.3)
0 (0)
Hispanic
29 (26.9)
4 (21.1)
6 (15.4)
8 (19.1)
5 (45.5)
White
49 (45.4)
12 (63.2)
28 (71.8)
25 (59.5)
5 (45.5)
Income (%)
< $55000
29 (26.9)
3 (15.8)
12 (30.8)
8 (19.1)
1 (9.1)
0.22
$55000-70000
41 (38.0)
8 (42.1)
15 (38.5)
13 (31.0)
8 (72.7)
> $70000
38 (35.2)
8 (42.1)
12 (30.8)
21 (50.0)
2 (18.2)
Lymph nodes status (%)
N0
64 (59.3)
12 (63.2)
32 (82.1)
24 (57.1)
6 (54.6)
0.007
N1
25 (23.2)
6 (31.6)
7 (18.0)
17 (40.5)
4 (36.4)
Nx
19 (17.6)
1 (5.3)
0(0)
1 (2.4)
1 (9.1)
Metastasis status (%)
M0
56 (52.9)
15 (79.0)
36 (92.3)
34 (81.0)
8 (72.7)
< 0.001
M1
43 (39.8)
4 (21.1)
3 (7.7)
8 (19.1)
2 (18.2)
Mx
9 (8.3)
0 (0)
0 (0)
0 (0)
1 (9.1)
Population (%)
≥ 1 million
76 (70.4)
13 (68.4)
21 (53.9)
24 (57.1)
7 (63.6)
0.32
Others
32 (29.7)
6 (31.6)
18 (46.2)
18 (42.9)
4 (36.4)
Size (%)
≤ 50 mm
18 (16.7)
1 (5.3)
12 (30.8)
6 (14.3)
1 (9.1)
< 0.001
51-100 mm
25 (23.2)
5 (26.3)
15 (38.5)
14 (33.3)
3 (27.3)
≥ 100 mm
37 (34.3)
11 (57.9)
10 (25.6)
21 (50.0)
7 (63.6)
Unknown
28 (25.9)
2 (10.5)
2 (5.1)
1 (2.4)
0 (0)
Table 4 Multivariate Cox regression analysis
Hazard ratio
Standard error
P value
Age group (%)
20-59
0.931
0.327
0.83
≥ 60
2.554
0.557
0.09
Sex (%)
Male
1.169
0.288
0.59
Race (%)
API
0.624
0.581
0.42
Black
2.296
0.461
0.07
Hispanic
0.9
0.368
0.78
Income (%)
$55000-70000
1.044
0.368
0.91
> $70000
0.644
0.345
0.2
Sugery
Surgery
1.465
0.472
0.42
Population (%)
≥ 1 million
1.209
0.287
0.51
Size (%)
≥ 100 mm
1.104
0.44
0.82
51-100 mm
1.233
0.426
0.62
Unknown
3.196
0.646
0.07
Lymph nodes (%)
N1
1.503
0.39
0.3
Nx
0.107
0.993
0.02
Metastasis status (%)
M1
0.301
0.782
0.13
Mx
7.503
1.366
0.14
Citation: Sempokuya T, Forlemu A, Azawi M, Silangcruz K, Khoury N, Ma J, Wong LL. Survival characteristics of fibrolamellar hepatocellular carcinoma: A Surveillance, Epidemiology, and End Results database study. World J Clin Oncol 2022; 13(5): 352-365