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Table 5 Lower and upper limits of the Bland-Altman method for assessing agreement between physicians and patients in the intervention group and percentages of differences within these limits and within +- 1 scale point

From: Pitfalls in the statistical examination and interpretation of the correspondence between physician and patient satisfaction ratings and their relevance for shared decision making research

  lower limit (95% confidence interval) upper limit (95% confidence interval) percentage of differences within limits differences -1 to +1 point
Item 1 -1.02 (-1.12 to -0.92) +1.71 (+1.60 to +1.81) 96.8% 96.8%
Item 2 -1.09 (-1.20 to -0.97) +1.93 (+1.81 to +2.04) 97.6% 94.0%
Item 3 -0.92 (-1.01 to -0.82) +1.65 (+1.55 to +1.75) 96.6% 97.1%
Item 4 -1.20 (-1.32 to -1.08 +2.00 (+1.87 to +2.12) 96.4% 93.4%
Item 5 -1.56 (-1.71 to -1.40) +2.36 (+2.20 to +2.51) 93.7% 87.8%
Item 6 -1.21 (-1.34 to -1.08) +2.13 (+2.00 to +2.26) 95.5% 92.6%
  1. The scale ranges from 1 (totally agree) to 5 (totally disagree).