risk of case, 34.6% lower, RR 0.65, p = 0.11, high D levels 61 of 1,097 (5.6%), low D levels 118 of 1,251 (9.4%), NNT 26, adjusted per study, >40ng/mL vs. <20ng/mL, Table 2, Model 2.
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risk of case, 36.0% lower, RR 0.64, p = 0.38, high D levels 6 of 131 (4.6%), low D levels 239 of 3,338 (7.2%), NNT 39, supplementation, >=2,000IU/d.
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risk of case, 31.1% lower, RR 0.69, p = 0.16, high D levels 15 of 304 (4.9%), low D levels 239 of 3,338 (7.2%), NNT 45, supplementation, >=1,001IU/d.
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risk of case, 8.9% lower, RR 0.91, p = 0.56, high D levels 60 of 920 (6.5%), low D levels 239 of 3,338 (7.2%), NNT 157, supplementation, >=1IU/d.
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