From: The measurement of response shift in patients with advanced prostate cancer and their partners
 |  | Visit 1 | Visit 2 | Visit 2 – Then-test | Visit 3 | Visit 3 – Then-test |
---|---|---|---|---|---|---|
Patients | Mean (n) | 4.4 (55) | 3.2 (53) | 5.4 (53) | 2.6 (53) | 4.8 (53) |
 | S.D. | 2.7 | 2.5 | 2.7 | 2.0 | 2.5 |
Partners | Mean (n) | 7.8 (43) | 6.5 (41) | 9.2 (41) | 7.2 (38) | 9.0 (38) |
 | S.D. | 2.4 | 2.3 | 2.6 | 2.3 | 2.4 |
Difference* | Â | 3.2 | 3.1 | 3.7 | 4.5 | 4.1 |
95% C.I. |  | 2.3 – 4.0 | 2.3 – 4.0 | 2.6 – 4.7 | 3.5 – 5.5 | 3.1 – 5.1 |
P value** | Â | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 |