risk of severe case, 90.0% lower, RR 0.10, p = 0.35, treatment 0 of 36 (0.0%), control 7 of 123 (5.7%), NNT 18, relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm), supplementation.
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risk of moderate/severe case, 18.8% higher, RR 1.19, p = 0.64, treatment 8 of 36 (22.2%), control 23 of 123 (18.7%), supplementation.
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risk of moderate/severe case, 79.5% lower, RR 0.21, p < 0.001, high D levels (≥10ng/mL) 8 of 100 (8.0%), low D levels (<10ng/mL) 23 of 59 (39.0%), NNT 3.2, cutoff ≥10ng/mL, outcome based on serum levels.
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risk of case, 59.9% lower, RR 0.40, p < 0.001, high D levels (≥10ng/mL) 100 of 397 (25.2%), low D levels (<10ng/mL) 59 of 94 (62.8%), NNT 2.7, cutoff ≥10ng/mL, outcome based on serum levels.
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