Table 2.
The distribution of total T4 concentration (μg /dl) in total sample and based on age, sex and TPO, Tg antibodies groups.
| 2006 | 2011 | |||||||||||||
| Percentile | Percentile | |||||||||||||
|
Mean± SD
[Min-Max] |
5th | 95th | 2.5th | 97.5th | P |
Mean± SD
[Min-Max] |
5th | 95th | 2.5th | 97.5th | P | |||
|
Total sample
(n=77) |
6.67±1.47 [2.7-11.6] |
4.68 | 9.7 | 3.17 | 10.74 | 0.90* |
Total sample
(n=377) |
8.3±2.95 [3.0-56.6] |
5.88 | 11.0 | 5.4 | 11.55 | 0.001* | |
| Sex |
Female
(n=39) |
6.67±1.34 [5.0-11.6] |
5.1 | 9.8 | 5 | 11.6 |
Female
(n=142) |
8.37±1.64 [4.0-13.2] |
5.9 | 11.5 | 5.47 | 11.8 | ||
|
Male
(n=38) |
6.68±1.62 [2.7-10.7] |
3.17 | 9.75 | 2.7 | 10.7 |
Male
(n=235) |
8.15±3.2 [3.0-56.6] |
5.8 | 10.5 | 5.12 | 11.2 | |||
| Age |
≤30
(n=28) |
6.56±1.63 [3.2-11.6] |
3.78 | 10.2 | 3.2 | 11.6 | 0.44** |
≤30
(n=34) |
8.36±1.63 [5.0-12.1] |
5.9 | 11.6 | 5.02 | 12.09 | 0.63** |
|
31-40
(n=15) |
7.4±1.59 [5.1-10.7] |
5.1 | 10.7 | 5.1 | 10.7 |
31-40
(n=65) |
8.16±1.73 [3.3-12.4] |
5.73 | 11.53 | 5.16 | 12.33 | |||
|
41-50
(n=21) |
6.85±1.2 [5.1-9.7] |
5.12 | 9.58 | 5.1 | 9.7 |
41-50
(n=94) |
8.6±5.19 [4.6-56.6] |
6.1 | 10.97 | 5.41 | 11.89 | |||
|
≥50
(n=10) |
6.2±1.34 [2.7-7.6] |
2.7 | 7.6 | 2.7 | 7.6 |
≥50
(n=182) |
8.16±1.58 [3.0-11.9] |
5.8 | 10.8 | 5.16 | 11.43 | |||
| TPO |
Positive
(n=96) |
5. 92±1.32 [3.7-9.1] |
3.76 | 8.95 | 3.7 | 9.1 | 0.01* |
Positive
(n=98) |
7.99±1.48 [4.7-13.2] |
5.8 | 12.4 | 4.96 | 13.48 | 0.41* |
|
Negative
(n=192) |
6.68±1.42 [2.7-11.6] |
4.76 | 9.34 | 3.39 | 10.56 |
Negative
(n=336) |
8.25±3.08 [3.0-56.6] |
5.5 | 11.13 | 5.1 | 11.76 | |||
| Tg |
Positive
(n=98) |
6.28±1.29 [3.7-9.1] |
3.74 | 8.94 | 3.7 | 9.1 | 0.38* |
Positive
(n=5) |
7.2±0.99 [6.0-8.7] |
4.9 | 8.7 | 4.9 | 8.7 | 0.08* |
|
Negative
(n=190) |
6.57±1.46 [2.7-11.6] |
4.58 | 9.26 | 3.46 | 10.52 |
Negative
(n=32) |
8.43±1.45 [6.0-11.5] |
6.2 | 11.5 | 6.0 | 11.9 | |||
*result from independent t-test or Mann-Whitney U test, ** result from ANOVA or Kruskal-Wallis