Table 3 The effect of zinc acetate lozenges on common cold symptoms in the Prasad et al. (2008) study [23]
Treatment group | ||||
|---|---|---|---|---|
Zinc | Placebo | Effect of zinc | Effect of zinc | |
(Days; mean) | (Days; mean) | (Days; mean, 95% CI) | (%; mean, 95% CI) | |
Total duration | 4.00 | 7.12 | −3.12 (−2.48, −3.76) | −43% (−34%, −53%) |
Nasal discharge | 3.00 | 4.56 | −1.56 (−0.22, −2.90) | −34% (−4%, −64%) |
Cough | 2.16 | 5.08 | −2.92 (−1.58, −4.26) | −57% (−30%, −84%) |
Muscle ache | 0.80 | 2.00 | −1.20 (−0.20, −2.20) | −60% (−9%, −110%) |