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Formulae for GRRs in cases versus controls and in mothers of cases versus mothers of controls (GRRs calculated assuming Hardy-Weinberg Equilibrium and random mating)
| GRRs | ||
|---|---|---|
| Sample | RR12 | RR22 |
| >Cases vs. controls |  |
 |
| Mothers of cases vs. mothers of controls |  |
 |
GRRs, genotype relative risks.
