Figure 2
From: Physiologic heart rate dependency of the PQ interval and its sex differences
Cumulative distributions of the regression residuals (see the text for details) of the hyperbolic PQ/RR regression models in the top row and of the linear QT/RR regression models in the bottom row. The panels on the left with red lines show the distribution in females, the panels on the right with blue lines the distribution in males. The dotted, dashed, and bold lines show the distribution of the residuals obtained with the averages of 3 RR intervals, 10-second averages of RR intervals, and hysteresis corrected RR intervals, respectively.
