highly significantp < 0.001
A Welch two-sample t -test confirmed this difference was highly significant ( t = 20.91, p < 0.001, 95% CI [0.20, 0.24]).
A Welch two-sample t -test confirmed this difference was highly significant ( t = 20.91, p < 0.001, 95% CI [0.20, 0.24]).
However, the interaction between postmenstrual age and tract class did not reach statistical significance in this age-restricted subset ( p = 0.577).