Research Article

Evaluating the Measurement Properties of the Self-Assessment of Treatment Version II, Follow-Up Version, in Patients with Painful Diabetic Peripheral Neuropathy

Table 5

Percentage of participants meeting various MID definitions for SAT II follow-up scores at week 12.

SAT II follow-up scoreSEMSEM0.5 SDBPI-DN item 5: 30–40%BPI-DN item 5: 25–35%BPI-DN item 9F: 30–40%BPI-DN item 9F: 25–35%PGIC: minimally improvedPGIC: minimally improved and much improved

Pain improvement175 (51.62%)175 (51.62%)175 (51.62%)108 (31.86%)108 (31.86%)108 (31.86%)108 (31.86%)74 (21.83%)74 (21.83%)
Impact summary166 (48.97%)166 (48.97%)166 (48.97%)127 (37.46%)117 (34.51%)107 (31.56%)127 (37.46%)75 (22.12%)64 (18.88%)
Treatment continuation292 (86.14%)292 (86.14%)292 (86.14%)123 (36.28%)123 (36.28%)123 (36.28%)123 (36.28%)123 (36.28%)123 (36.28%)
Treatment comparison317 (93.51%)317 (93.51%)317 (93.51%)154 (45.43%)154 (45.43%)154 (45.43%)154 (45.43%)71 (20.94%)71 (20.94%)

SEM = SD of the measure multiplied by the square root of 1 minus its reliability coefficient ICC from the test-retest assessment.
ICC1: evaluated among stable subjects (BPI-DN item 5 < 20%) between week 8 and week 12.
ICC2: evaluated among stable subjects (EQ-5D VAS change < 20%) between week 8 and week 12.