Zinc Group (n = 1210) | Placebo Group (n = 1221) | Difference in Means or Difference in Proportions (95% CI) | |
---|---|---|---|

Baseline | |||

Plasma zinc (μg/dL; mean [SD]) | 62.0 (14.3) | 62.0 (11.2) | 0 (−1.0 to 1.0) |

<60 (μg/dL; n [%]) | 553 (45.8%) | 513 (42.0%) | 3.8% (−0.3% to 7.6%) |

n = 478) | (n = 472) | ||

Plasma copper (μg/dL; mean [SD]) | 166.8 (33.3) | 165.2 (37.3) | 1.6 (−2.9 to 6.1) |

End of study | (n = 450) | (n = 499) | |

Plasma zinc (μg/dL; mean [SD]) | 129.1 (66.3) | 60.8 (13.8) | 68.3 (62.3–74.2) |

<60 (μg/dL; n [%]) | 21 (4.6%) | 256 (51.3%) | −46.7% (−41.8% to −51.4%) |

(n = 440) | (n = 490) | ||

Plasma copper (μg/dL; mean [SD]) | 140.4 (36.5) | 155.9 (31.6) | −15.5 (−19.9 to −11.1) |