Comparison Estimate Std. Error z-value p-value
Always – Ancestor -0.5490 0.1354 -4.055 <0.001
2.1. - Ancestor -0.5902 0.1348 -4.378 <0.001
5.1. – Ancestor -0.8224 0.1448 -5.680 <0.001
Never – Ancestor -0.3174 0.1290 -2.460 0.0985