Table 2.
Demographic characteristics, serum Tg values, and estimated dietary iodine intake of the study groups.
| Characteristics | Control | Hypothyroidism | NNG |
|---|---|---|---|
| N | 31 | 14 | 17 |
| Gender (women, men) | 25, 6 | 12, 2 | 13, 4 |
| Age (years) | |||
| Mean± | 58 ± 13 | 54 ± 17 | 60 ± 10 |
| Range (years) | 23–77 | 21–71 | 49–80 |
| Serum Tg (ng/mL) | |||
| Mean | 17AB | 11B | 35A |
| Median | 21 | 12 | 27 |
| Range | 2–59 | 1–101 | 2–792 |
| 25th–75th percentiles range | 12–32 | 3–43 | 10–182 |
| n (abnormally elevated values)P∗ | 0 (0%) | 1 (7%) | 5 (29%) |
| Estimated dietary iodine intake (μg/d) | |||
| Mean± | 115 ± 60B | 73 ± 38AB | 65 ± 30A |
| Median | 109 | 76 | 67 |
| Range (μg/d) | 27–263 | 29–165 | 10–113 |
±Plus-minus values are mean ± SD.
ABMeans without a common letter are significantly different (Tukey-Kramer, α = 0.05).
n (abnormally elevated values) = number of participants with Tg values above 60 ng/mL.
PPrevalence displayed as number of positive cases (percentage in brackets).
*Groups are significantly different (Fisher exact test, P < 0.05).
Tg: thyroglobulin; NNG: nontoxic nodular goiter; ng/mL: nanogram per milliliter; μg/d: microgram per day.