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. 2013 Mar;20(3):326–330. doi: 10.1177/1933719112453510

Figure 1.

Figure 1.

Daily swallowed volumes as a function of amniotic fluid volume. A, An exponential function fit to data: Y = A + B 10^(CX); A = 2.857, B = −2.042, C = −0.0315. Plateau = 719 mL/d. B, A breakpoint function fit to data: Y = A or B + CX; A = 2.803, B = 1.917, C = 0.0216. Breakpoint = 1682 mL, plateau = 635 mL/d. Y scale, logarithmic; X scale, square root. Solid lines are regression lines; dotted lines, 95% confidence intervals about the regression line; and dash lines, 95% prediction intervals about individual points.