Association of Serum Gamma-Glutamyl Transferase and Ferritin with the Metabolic Syndrome
Table 2
Clinical and laboratory characteristics of subjects in groups defined by serum GGT and ferritin levels.
Group 1
Group 2
Group 3
Female
171 (29.1%)
228 (38.8%)
189 (32.1%)
Age
37.1, 11.6
44.8, 13.8
50.6, 11.8
GGT (U/L)
12.0 (10.0, 14.0)
18.0 (12.0, 28.0)
31.0 (20.0, 54.0)
Ferritin (µmol/L)
22.0 (15.6, 42.1)
63.4 (33.2, 112.9)
119.4 (109.8, 224.5)
BMI (kg/m2)
20.9, 2.6
22.0, 3.6
24.4, 3.9
WC (cm)
74.2, 7.3
77.3, 9.4
84.4, 10.3
SP (mmHg)
105.9, 12.5
111.2, 17.9
118.4, 20.7
DP (mmHg)
72.4, 10.3
76.2, 12.6
79.8, 13.4
TG (mmol/L)
1.1, 0.6
1.6, 1.2
2.1, 1.7
HDL-C (mmol/L)
1.2, 0.3
1.2, 0.4
1.3, 0.4
TC (mmol/L)
3.9, 0.7
4.2, 0.9
4.6, 1.1
LDL-C (mmol/L)
2.3, 0.5
2.5, 0.7
2.7, 0.7
FPG (mmol/L)
4.7, 0.6
5.0, 1.2
5.1, 1.1
2 h PG (mmol/L)
5.5, 1.5
6.4, 2.6
7.8, 3.4
HOMA-IR
1.2 (0.9, 1.8)
1.3 (0.9, 2.0)
1.6 (1.1, 2.5)
Place (rural, %)
85 (49.7%)
130 (57.0%)
100 (52.9%)
UA (mmol/L)
270.3, 57.1
288.6, 69.9
315.4, 84.6
UACR (mg/mmol)
8.7 (3.3, 15.0)
11.6 (5.6, 22.3)
15.0 (6.4, 28.2)
AST (U/L)
27.5, 8.4
32.2, 11.6
38.3, 21.3
ALT (U/L)
27.1, 12.2
35.0, 18.8
49.3, 37.3
Education (, %)
36 (21.1%)
31 (13.6%)
17 (9.0%)
Income (, %)
66 (38.6%)
76 (33.3%)
60 (31.7%)
Activity (, %)
40 (23.4%)
76 (33.3%)
69 (36.5%)
Heavy smoking ()
0
0
0
Heavy drinking (, %)
13 (7.6%)
14 (6.1%)
19 (10.1%)
HBsAg (, %)
23 (13.5%)
25 (11.0%)
17 (9.0%)
Anti-HCV (, %)
4 (2.3%)
4 (1.8%)
4 (2.1%)
Male
139 (31.9%)
156 (35.8%)
141 (32.3%)
Age
43.0, 16.3
46.1, 14.5
46.3, 13.0
GGT (U/L)
17.0 (13.0, 23.0)
29.0 (22.0, 37.0)
67.0 (43.0, 126.0)
Ferritin (µmol/L)
107.1 (74.0, 145.8)
188.9 (135.9, 239.1)
287.7 (230.5, 353.4)
BMI (kg/m2)
20.2, 2.2
22.1, 3.0
24.2, 3.6
WC (cm)
74.0, 7.0
80.2, 9.4
88.0, 10.9
SP (mmHg)
109.6, 14.2
114.5, 15.8
119.0, 18.0
DP (mmHg)
74.2, 10.9
77.3, 10.2
81.8, 12.2
TG (mmol/L)
1.2, 0.7
1.4, 1.0
2.5, 2.8
HDL-C (mmol/L)
1.1, 0.3
1.2, 0.3
1.2, 0.3
TC (mmol/L)
3.8, 0.7
4.2, 0.8
4.7, 1.0
LDL-C (mmol/L)
2.3, 0.6
2.5, 0.6
2.8, 0.7
FPG (mmol/L)
4.9, 1.1
5.0, 0.9
5.3, 1.6
2 h PG (mmol/L)
5.7, 2.5
5.9, 2.7
7.1, 3.4
HOMA-IR
1.2 (0.9, 1.6)
1.3 (0.9, 1.8)
1.4 (1.0, 2.1)†
Place (rural, %)
90 (64.7%)
102 (65.4%)
91 (64.5%)
UA (mmol/L)
355.4, 82.5
353.8, 83.3
412.4, 91.3
UACR (mg/mmol)
8.6 (3.1, 18.4)
9.9 (3.7, 19.0)
11.2 (4.6, 27.5)
AST (U/L)
33.7, 12.9
33.9, 16.5
50.1, 63.7
ALT (U/L)
35.8, 18.5
40.6, 27.4
72.3, 101.8
Education (, %)
23 (16.5%)
35 (22.4%)
28 (19.9%)
Income (, %)
36 (25.9%)
61 (39.1%)
63 (44.7%)
Activity (, %)
41 (29.5%)
48 (30.8%)
53 (37.6%)
Heavy smoking (, %)
5 (3.6%)
10 (6.4%)
10 (7.1%)
Heavy drinking (, %)
60 (43.2%)
81 (51.9%)
81 (57.4%)
HBsAg (, %)
21 (15.1%)
23 (14.7%)
15 (10.6%)
Anti-HCV (, %)
6 (4.3%)
8 (5.1%)
9 (6.4%)
Data of age, BMI, WC, SP, DP, TG, TC, HDL-C, LDL-C, FPG, 2 h PG, UA, AST, and ALT are mean, standard deviation; data of GGT, ferritin, HOMA-IR, and UACR are median, interquartile range; other data are , %. compared with Group 1; compared with Group 1; compared with Group 2; compared with Group 2.
