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Scientific Concept of the National Cohort (status ... - Nationale Kohorte

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Table S6.3: Minimum detectable odds ratio (MDOR; statistical power 0.80, significance level <strong>of</strong> ei<strong>the</strong>r 0.05 or 10<br />

Table S6.3: Minimum detectable odds ratio (MDOR; statistical power 0.80, significance level <strong>of</strong> ei<strong>the</strong>r 0.05 or 10-4) for comparison <strong>of</strong> top to bottom quartiles<br />

<strong>of</strong> a continuous exposure variable by number <strong>of</strong> controls per cases.<br />

-4 ) for comparison <strong>of</strong> top to bottom<br />

quartiles <strong>of</strong> a continuous exposure variable by number <strong>of</strong> controls per cases.<br />

Minimum detectable OR for comparison <strong>of</strong> top to bottom quartiles<br />

Case to<br />

Critical 150 200 300 400 500 700 1,000 1,500 2,000 2,500 3,000 4,000 5,000 10,000<br />

control ratio<br />

p-value cases cases cases cases cases cases cases cases cases cases cases cases cases cases<br />

(unmatched)<br />

1:1 0.05 2.4 2.1 1.9 1.7 1.6 1.5 1.4 1.3 1.3 1.2 1.2 1.18 1.16 1.11<br />

10 -4 7.2 5.3 3.8 3.1 2.8 2.3 2.0 1.8 1.6 1.6 1.5 1.4 1.4 1.2<br />

1:2 0.05 2.1 1.9 1.7 1.6 1.5 1.4 1.3 1.3 1.2 1.2 1.18 1.16 1.14 1.10<br />

10 -4 5.4 4.2 3.1 2.7 2.4 2.1 1.8 1.6 1.5 1.5 1.4 1.4 1.3 1.2<br />

1:4 0.05 2.0 1.8 1.6 1.5 1.5 1.4 1.3 1.2 1.2 1.18 1.17 1.14 1.13 1.09<br />

10 -4 4.6 3.6 2.8 2.4 2.2 2.0 1.7 1.6 1.5 1.4 1.4 1.3 1.3 1.2<br />

Table * highlighted S6.4: Relationship are <strong>the</strong> combinations between where standardized MDOR is 1.5 difference or smaller A and expected Odds Ratio between extreme tertiles or quartiles <strong>of</strong> <strong>the</strong> exposure<br />

distribution.<br />

C.2 Annex: Methods for Statistical Power and Sample Size Calculations<br />

Table S6.4: Relationship between standardized difference A and expected Odds Ratio between extreme tertiles or quartiles <strong>of</strong> <strong>the</strong> exposure distribution.<br />

277<br />

OR<br />

over tertiles<br />

OR<br />

over quartiles<br />

Standardized<br />

difference A<br />

0,05 1,14 1,12<br />

0,08 1,23 1,19<br />

0,10 1,29 1,25<br />

0,15 1,46 1,39<br />

0,20 1,66 1,55<br />

0,25 1,89 1,73<br />

0,30 2,14 1,93<br />

0,35 2,43 2,16<br />

0,40 2,76 2,41<br />

C.2

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