TABLE 6.
Pregnant Women (age 15–44 years): Comparisons of T4 and TSH Values Across 4-level UI/Cr Ranges
| Variable | UI/Cr 0–50 µg/g (n = 13) |
UI/Cr 50.01–100 µg/g (n = 77) |
UI/Cr 100.01–200 µg/g (n = 101) |
UI/Cr 200.01+µg/g (n = 75) |
P |
|---|---|---|---|---|---|
| Thyroxine T4 (µg/dL) | 10.93 ± 0.62 | 11.03 ± 0.24 | 11.14 ± 0.21 | 11.26 ± 0.22 | |
| Med 10.6 | Med 11.4 | Med 11.1 | Med 11.4 | 0.893 | |
| Range 7.1–14.7 | Range 5.7–14.5 | Range 3.5–14.9 | Range 5.9–14.9 | ||
| T4 (nmol/L) | 140.7 ± 8.01 | 142.0 ± 3.04 | 143.4 ± 2.69 | 144.94 ± 2.81 | |
| Med 136.4 | Med 146.7 | Med 142.9 | Med 146.7 | 0.893 | |
| Range 91.4–198.2 | Range 73.4–186.6 | Range 45.0–191.8 | Range 75.9–191.8 | ||
| TSH (µU/mL = mU/L) | GM 1.2 ± 0.26 | GM 1.1 ± 0.07 | GM 1.0 ± 0.08 | GM 1.1 ± 0.08 | |
| Med 1.2 | Med 1.0 | Med 1.2 | Med 1.1 | 0.392 | |
| Range 0.3–3.6 | Range 0.2 ± 4.0 | Range 0.0–3.8 | Range 0.1–3.5 |
Descriptive data are summarized in the format mean ± SE or geometric mean ± SE and median, range (minimum–maximum). Total n = 266.