a borderline significant trendp = 0.064
Although, both models provided evidence for tilt-angle dependency of PE influence on sBP (β 2 coefficient in Equation 2), one model also showed a borderline significant trend (parametric bootstrap p = 0.064) toward contribution from PE frequency (β 1 coefficient in Equation 2) with rather a small effect size (β 1 ≃ 0.09, i.e., ΔsBP = 2.2 mmHg).