Table 1.
General characteristics of study participants by γ-glutamyltransferase (GGT) tertiles
| Tertiles of serum GGT | p | |||
|---|---|---|---|---|
| |
Tertile 1 (0 ~ 22 U/L) |
Tertile 2 (23 ~ 34 U/L) |
Tertile 3 (35 ~ 73 U/L) |
|
|
Men (n = 2424) |
N = 822 |
N = 800 |
N = 802 |
|
| Age (years) |
56.2 ± 0.5 |
54.0 ± 0.5 |
52.6 ± 0.4 |
<0.001 |
| Body mass index (kg/m2) |
22.8 ± 0.1 |
24.1 ± 0.1 |
24.6 ± 0.1 |
<0.001 |
| Smoking |
|
|
|
<0.001 |
| Non-smoker |
163(21.5%) |
131(15.1%) |
106(12.7%) |
|
| Ex-smoker |
454(49.5%) |
393(46.4%) |
351(39.3%) |
|
| Current-smoker |
205(29.0%) |
276(38.5%) |
345(48.0%) |
|
| Alcohol drinking |
|
|
|
<0.001 |
| Non-drinker |
375(45.7%) |
238(27.1%) |
138(17.5%) |
|
| Current-drinker1 |
447(54.3%) |
562(72.9%) |
664(82.5%) |
|
| Physical activity |
|
|
|
|
| Inactive |
677(82.4%) |
684(84.3%) |
683(85.1%) |
0.485 |
| Active2 |
145(17.6%) |
116(15.7%) |
119(14.9%) |
|
| |
Tertile 1 (0 ~ 14 U/L) |
Tertile 2 (15 ~ 19 U/L) |
Tertile 3 (20 ~ 48 U/L) |
|
|
Women (n = 3652) |
N = 1273 |
N = 1101 |
N = 1278 |
|
| Age (years) |
53.1 ± 0.4 |
55.6 ± 0.4 |
56.5 ± 0.4 |
<0.001 |
| Body mass index (kg/m2) |
22.9 ± 0.1 |
23.6 ± 0.1 |
24.7 ± 0.1 |
<0.001 |
| Smoking |
|
|
|
0.174 |
| Non-smoker |
1192(92.8%) |
1019(91.9%) |
1174(90.6%) |
|
| Ex-smoker |
41(3.8%) |
41(3.7%) |
45(3.5%) |
|
| Current-smoker |
40(3.4%) |
41(4.4%) |
59(5.8%) |
|
| Alcohol drinking |
|
|
|
0.008 |
| Non-drinker |
913(68.9%) |
741(62.6%) |
831(62.3%) |
|
| Current-drinker1 |
360(31.1%) |
360(37.4%) |
447(37.7%) |
|
| Physical activity |
|
|
|
|
| Inactive |
1079(86.1%) |
964(87.9%) |
1087(83.8%) |
0.073 |
| Active2 | 194(13.9%) | 137(12.1%) | 191(16.2%) | |
All statistics are results from complex survey data analyses.
1participants with alcohol drinking on one or more times of the past 30 days.
2participants with moderate or vigorous physical activity on 5 or more days of the past 7 days.