Table 2.
Median, percentiles and geometric means with 95% confidence intervals of Se serum concentration (ng/ml) at baselinea
| Group | n | Mean±Sth. | Median | 5% | 25% | 75% | 95% | CV (%) b | Geometric Means (95% CI) | ρ− Value c |
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| Case | 622 | 97.71±15.49 | 96.41 | 75.58 | 86.74 | 106.34 | 124.95 | 15.85 | 96.21 (95.03–97.41) | <0.05 |
| Control | 622 | 94.33±16.70 | 92.52 | 71.45 | 84.45 | 103.44 | 121.81 | 17.70 | 92.99 (91.76–94.22) | |
Table Footnote
a
: The limit of detection (LOD) for Se was 0.0736 ng/ml.
b
: CV represented coefficient of variation, calculated as: standard deviation /means*100%.
c
: ρ represent the covariance significant test for geometric means, adjusted by: Age at diagnosis (<40, 40–49, 50–59, 60–69, ≥70), gender (male/female), BMIs (≤18.5, 18.5–23.9, 24.0–27.9, ≥28.0), family history of diabetes (yes or no), smoking index, (no smoking, 0–6.3, 6.4–14.0, 14.1–23.2, ≥23.3), lifetime total alcohol intake, (no drinking, 0–72.2, 72.3–167.5, 167.5–380.1, ≥380.1), Hypertension status (normal, elevated, stage I, stage II).