Table 6 Association between selenium (μg/day) and risk of SGA
Quintiles | Casesn (%) | Controls n (%) | OR (95% CI) | aORa (95% CI) |
|---|---|---|---|---|
Selenium (μg/day) | ||||
Q1 (≤ 72.25) | 132 (25.5) | 104 (20.1) | 1 (ref.) | 1 (ref.) |
Q2 (72.26–84.49) | 110 (21.4) | 104 (20.1) | 0.83 (0.57–1.20) | 0.73 (0.44–1.22) |
Q3 (84.50–96.20) | 86 (16.6) | 103 (19.9) | 0.63 (0.42–0.95) | 0.46 (0.27–0.80) |
Q4 (96.21–110.63) | 94 (18.2) | 104 (20.1) | 0.71 (0.49–1.03) | 0.58 (0.36–0.94) |
Q5 (> 110.63) | 96 (18.5) | 103 (19.9) | 0.72 (0.49–1.07) | 0.53 (0.32–0.87) |
P for trend | 0.581 | 0.594 | ||
< 60 | 65 (12.6) | 32 (6.2) | 1 (ref.) | 1 (ref.) |
≥ 60 | 453 (87.4) | 486 (93.8) | 0.47 (0.30–0.73) | 0.39 (0.22–0.69) |