Table 2 Associations of age and sex with plasma zinc level
Variables | Regression coefficient (β) | Standard error | 95% Confidence intervals | P value |
|---|---|---|---|---|
Step 1 | ||||
Constant | 10.5 | 1.5 | ||
Age | −0.4 | 0.1 | −0.7 - -0.07 | 0.01 |
Step 2 | ||||
Constant | 10.6 | 1.5 | ||
Age | −0.3 | 0.1 | −0.7 - -0.5 | 0.02 |
Sex | −1.6 | 0.6 | −0.1 - 0.7 | 0.4 |