Table 2.
The prevalence of subclinical thyroid dysfunctions and mean serum thyrotropin (TSH) levels according to sleep duration.
| Participants Group | Multiple Comparison | ||||||
|---|---|---|---|---|---|---|---|
| Short Sleepers n = 2097 |
Normal sleepers n = 2514 |
Long Sleepers n = 334 |
p-Value | 1 vs. 2 p-Value |
2 vs. 3 p-Value |
1 vs. 3 p-Value |
|
| TSH level (mIU/L) | 2.58 ± 0.04 | 2.59 ± 0.04 | 2.85 ± 0.14 | 0.1677 | 0.7670 | 0.0688 | 0.0607 |
| Euthyroidism | 1960 (93.10) | 2395 (95.06) | 306 (91.49) | 0.0116 | 0.0489 | 0.0411 | 0.7193 |
| Non-euthyroidism | 137 (6.90) | 119 (4.94) | 28 (8.51) | 0.0399 | 0.0983 | 0.1360 | 0.8982 |
| Subclinical hyperthyroidism | 63 (3.17) | 56 (2.58) | 16 (4.47) | ||||
| Subclinical hypothyroidism | 74 (3.73) | 63 (2.35) | 12 (4.04) | ||||
Data are presented as n (weighted %) and mean ± standard deviation. Multiple comparison: “1” for “short sleeper; less than 7 h”, “2” for “normal sleepers; 7–8 h”, and “3” for “long sleeper; more than 8 h”. Statistics were carried out using Rao–Scott chi-square test and t-test.