borderline non-significantP = 0.050
The full regressions (Model IV) demonstrate that, with each doubling of WSS at Day 1, the fistula vein had a 10% greater increase in lumen area from Day 1 to Week 2 (P < 0.001) and a 9% greater increase from Day 1 to Week 6 (P < 0.001), but only a borderline non-significant 3% greater increase from Week 2 to Week 6 (P = 0.050).