Table 2.

Grandmother effect.

carriercontrol
grandmother effectaΔWGbWMcWdΔWGbWMcWdse
0002.57001.820.41
0.21.770.322.892.510.592.420.20
0.32.660.473.043.770.842.660.14
0.43.540.623.185.021.072.890.10
0.54.430.753.326.281.283.100.07
  • aNumber of extra grandchildren per year after age 50.

  • bTotal number of extra granddaughters due to grandmother effect.

  • cNumber of extra daughters due to help from mother.

  • dTotal number of daughters.

  • eSelection coefficient: proportion of fitness increase for carriers relative to controls.