Variable | Visit | Observed value | Change from visit 2 (baseline) | 95% confidence interval | Paired t-test | Wilcoxon signed rank test | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | N | Mean | SD | Min | Median | Max | N | Mean | SD | Min | Median | Max | Lower | Upper | P-value | P-value | |
Overall score | 2 | 860 | 4.80 | 1.09 | 1.4 | 4.81 | 7.0 | - | - | - | - | - | - | - | - | - | - |
 | 3 | 838 | 5.31 | 1.00 | 1.8 | 5.41 | 7.0 | 837 | 0.51 | 0.89 | −3.8 | 0.39 | 4.5 | 0.45 | 0.57 | <.0001 | <.0001 |
 | 4 | 811 | 5.54 | 0.99 | 1.7 | 5.71 | 7.0 | 810 | 0.74 | 0.95 | −2.4 | 0.59 | 4.2 | 0.67 | 0.80 | <.0001 | <.0001 |
 | 5 | 804 | 5.67 | 0.98 | 1.9 | 5.84 | 7.0 | 803 | 0.87 | 1.04 | −2.9 | 0.71 | 4.5 | 0.79 | 0.94 | <.0001 | <.0001 |
 | Mean of 3-5 | 842 | 5.50 | 0.92 | 2.1 | 5.60 | 7.0 | 841 | 0.70 | 0.89 | −2.2 | 0.55 | 4.3 | 0.64 | 0.76 | <.0001 | <.0001 |