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Mathematical definitions of measures of association.
| Measure of association | Mathematical Definition |
|---|---|
| Relative Reporting Ratio (RRR) | (t·a)/(m·n) |
| Proportional Reporting Ratio (PRR) | [a·(t-n)]/(c·n) |
| Reporting Odds Ratio (ROR) | (a·d)/(c·b) |
| Information Component (IC) | log2(RRR) |
