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Table 3 Analysis for interactions between multiple regions

From: Tumor loci and their interactions on mouse chromosome 19 that contribute to testicular germ cell tumors

Congenic strains Regions Observed incidence Expected incidence Test score (χ2,Pvalue)
5 × 3 × 7 I.III.V 0.37 0.40 0.25, ns
5 × 3 × 7 I (III.V)§ 0.37 0.25 4.41, P < 0.04
5 × 3 × 7 III (I.V) 0.37 0.35 0.06, ns
5 × 3 × 7 V (I.III) 0.37 0.43 0.98, ns
3 × 7 III.V 0.26   
5 × 7 I.V 0.08   
5 × 3 I.III 0.34   
  1. I.III.V indicates analysis of additive interaction between regions I and III and V.
  2. §I (III.V) indicates analysis of interaction between region I and combined regions III and V.
  3. ns = no statistically significant difference between observed and expected values.
  4. Positive epistatic interactions are in green.