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. 2011 May 11;119(10):1483–1488. doi: 10.1289/ehp.1002412

Table 5.

Serum liver damage enzyme levels in relationship with related risk factors in the three groups.

Risk factor Unexposed (n = 145) Low exposed (n = 183) High exposed (n = 994) p-Value
HBV infected [n (%)] 3 (2.1) 4 (2.2) 37 (3.7) 0.39a
Hepatotoxic medicines used [n (%)] 7 (4.8) 9 (4.9) 65 (6.5) 0.55a
HBV-negative, no hepatotoxic medicine use [n (%)] 135 (93.1) 170 (92.9) 892 (89.7) 0.22a
ALT (U/L)b 14.0 (12.6–15.4) 16.1 (14.5–17.7) 14.8 (14.2–15.4) 0.14c
AST (U/L)b 27.6 (26.2–29.0) 30.3 (29.3–31.3) 33.4 (32.8–34.0) 0.01c
GGT (U/L)b,c 14.8 (13.7–15.8) 17.0 (16.2–17.8) 16.2 (15.7–16.7) 0.18c
ALP (U/L)b,c 281.3 (269.5–293.1) 285.6 (272.9–298.3) 288.7 (281.4–296.0) 0.00c
Enzyme abnormalities [n (%)] 6 (4.4) 10 (5.9) 96 (10.8) 0.22a
aChi-square test. bValues are 95% CI. cKruskal–Wallis test.