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Table 4 Binary outcomes between study groups

From: The effect of supplementation with vitamins A, B, C, D, and E on disease severity and inflammatory responses in patients with COVID-19: a randomized clinical trial

Outcomes

Groups

P value

Effect size (if chi square of fisher exact test is significant)

Supplementation

(N=30)

Placebo

(N=30)

Mortality rate, n (%)

0 (0)

4 (13.3%)

0.112

-

Prolonged hospitalization >  7 days, n (%)

4 (13%)

16 (53%)

0.001

Phi = 0.424

Unadjusted OR: 0.135 (95% CI 0.038–0.481; p=0.002)

Adjusted OR*: 0.402 (95% CI 0.086–1.883; p=0.247)

  1. *Adjusted for age, gender, and O2 saturation