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. 2008 Jul 2;3(7):e2573. doi: 10.1371/journal.pone.0002573

Table 3. 4-year survival according to baseline FibroTest, viral load ALT values and treatment.

Baseline FibroTest Value n Death or HBV complications Survival without HBV complications HBVRelated Death Survival without HBV death Death Overall Survival Overall Survival in paired controls
0.00–0.31
No or minimal fibrosis 637 4 98.9 (97.7–100) 1 99.4 (98.4–100) 1 99.4 (98.4–100) 99.5 (99.5–99.6)
Not treated 350 0 100 0 100 0 100 99.6 (99.5–99.6)
Treated 287 4 98.0 (96.1–99.9) 1 99.2 (97.5–100) 1 99.2 (97.5–100) 99.5 (99.4–99.6)
0.32–0.58
Moderate fibrosis 229 6 94.1 (88.8–99.5) 1 99.4 (98.3–100) 3 98.2 (96.2–100) 98.5 (98.0–98.9)
Not treated 54 1 95.2 (86.1–100) 0 100 1 95.2 (86.1–100) 98.2 (97.0–99.3)
Treated 175 5 93.9 (87.9–99.9) 1 99.3 (98.0–100) 2 98.7 (96.9–100) 98.6 (98.1–99.0)
0.59–1.00
Severe fibrosis§ 208 40 77.6 (71.3–83.9)* 25 84.2 (77.9–90.5) 32 80.5 (73.8–87.1)§§ 97.3 (96.7–97.9)
Not treated 24 7 70.0 (51.4–88.6) 6 74.1 (56.2–92.0)$ 7 70.0 (51.4–88.6)£ 97.1 (94.6–99.5)
Treated 184 33 78.7 (71.9–85.4) 19 87.5 (81.8–93.1) 25 81.8 (74.8–88.9) 97.3 (96.7–97.9)
Viral load ***
Low <2000 IU/ml 683 24 94.7 (92.3–97.0) 12 97.5 (96.0–99.0) 18 96.2 (94.4–98.1) 98.8 (98.6–99.1)
 Not treated 332 6 97.4 (95.2–99.5) 4 98.5 (97.0–99.9) 6 97.4 (95.2–99.5) 99.1 (98.9–99.4)
 Treated 351 18 93.2 (89.9–96.5) 8 97.0 (94.9–99.2) 12 95.6 (93.1–98.2) 98.5 (98.3–98.8)
Intermediate 2000–20,000 IU/ml 169 2 98.8 (97.1–100) 0 100 1 99.4 (98.1–100) 99.0 (98.6–99.5)
 Not treated 61 0 100 0 100 0 100 99.6 (99.5–99.7)
 Treated 108 2 98.1 (95.6–100) 0 100 1 99.1 (97.2–100) 98.7 (97.9–99.5)
High >20,000**** 222 24 85.4 (79.4–91.4) 15 89.2 (82.9–95.5) 17 88.2 (81.8–94.5) 98.9 (98.5–99.2)
 Not treated 35 2 92.5 (82.3–100) 2 92.5 (82.3–100) 2 92.5 (82.3–100) 99.6 (99.4–99.8)
 Treated 187 22 84.5 (78.0–91.1) 13 88.8 (81.9–95.8) 15 87.7 (80.6–94.7) 98.7 (98.3–99.1)
ALT
Very Low <25 IU/L 317 5 97.9 (96.0–99.8) 3 98.9 (97.6–100) 5 97.9 (95.9–99.8) 98.9 (98.7–99.2)
 Not treated 176 1 99.4 (98.3–100) 1 99.4 (98.3–100) 1 99.4 (98.3–100) 99.3 (98.9–99.6)
 Treated 141 4 96.6 (93.3–99.9) 2 98.4 (96.3–100) 4 96.6 (93.3–99.9) 98.5 (97.9–98.9)
Low 25–49 IU/L 455 16 94.0 (90.5–97.5) 3 99.2 (98.2–100) 8 97.7 (96.1–99.3) 98.9 (98.7–99.2)
 Not treated 205 3 97.4 (94.4–100) 1 99.3 (97.9–100) 3 97.4 (94.4–100) 99.2 (98.9–99.5)
 Treated 250 13 92.4 (87.6–97.1) 2 99.1 (97.9–100) 5 97.8 (95.9–99.7) 98.7 (98.3–99.1)
Elevated > = 50 IU/L 302 29 87.9 (83.6–92.2) 21 89.7 (85.0–94.4) 23 89.0 (84.2–93.8)*$ 98.7 (98.4–99.0)
 Not treated 47 4 88.9 (78.5–99.2) 4 88.9 (78.5–99.2) 4 88.9 (78.5–99.2) 99.0 (98.2–99.9)
 Treated 255 25 87.8 (83.2–92.5) 17 89.9 (84.8–95.1) 19 89.1 (83.9–94.3) 98.6 (98.3–98.9)
All 1074 50 93.4 (91.4–95.4) 27 96.1 (94.4–97.8) 36 95.0 (93.2–96.8)* 98.9 (98.7–99.0)
§

Survival of the severe fibrosis group was significantly lower than the two other groups (P<0.001).

§§

Overall survival of the severe fibrosis group, treated or not, was significantly lower than that of paired controls (p<0.05).

*

Overall survival of the 1074 HBV patients, was significantly lower than that of paired controls (p<0.05).

$

P = 0.03 vs treated.

£

P = 0.047 vs treated.

***

Survivals of the treated patients were similar to those of the non –treated in different groups of viral load (p>0.05).

****

Overall survival of the group with high viral load was lower than that of paired controls (p<0.05).

$*

Overall survival of the group with elevated ALT was lower than that of paired controls (p<0.05).

We used the manufacturers' definitions of normal FT (< = 0.27), normal AT (< = 0.29) and 3 classes for viral load in IU/ml.