Figure 2From: Use of interrupter technique in assessment of bronchial responsiveness in normal subjectsBland and Altman plot of the differences between two methods against their mean value. The limits of agreement ( -2s and +2s) are -0.334 mg (-1.39 μmol) and 0.306 mg (1.27 μmol) respectively. The 95% confidence intervals are -0.364 to -0.303 mg and 0.275 to 0.336 mg, respectively.Back to article page