Distinctively, the focus was on the period prior to the onset of the progressive course and on the attainment of high disability levels [Disability Status Scale (DSS) 6 8 10].
Functional disability of the participants was assessed by the Neck Pain Disability Index (NDI, range 0-50, recalculatod to 0-100%; a higher score indicating a higher disability) and the Quebec Back Pain Disability Scale (QBPDS, range 0-100) [ 26, 27].
Since the perceived impact of dizziness assessed by the DHI-N seems important for how patients report on perceived levels of disability assessed by the Disability Scale, we expected a high correlation between these measures.
Secondarily, we assessed changes in HRQoL, anxiety, depression, and fatigue, and also performed separate analyses for persons with RRMS, progressive MS, low disability (Expanded Disability Status Scale [EDSS] < 4.0) and high disability (EDSS > =4.0).
Depressed adolescents had significantly higher scores on the YBOCS-BDD, OVIS, BDI, and the Sheehan Disability Scale compared to non-depressed participants; furthermore, individuals reporting BDD symptoms reported significantly higher scores on the YBOCS-BDD, OVIS, BDI, and Sheehan Disability Scale.
Questions are scored on a four level disability scale from zero to three, where three represents the highest degree of disability.
In the professional drivers, the occurrence of 12-month LBP, high intensity of LBP (Von Korff pain scale score ⩾5), and LBP disability (Roland & Morris disability scale score ⩾12) significantly increased with increasing cumulative vibration exposure.
Higher scores indicate higher disability and the scale discriminates between high and low levels of disability.
Sheehan disability scale.
This scale is divided into following scores: 0, no disability; I, low disability, low intensity; II, low disability, high intensity; III, high disability, moderately limiting; and IV, high disability, severely limiting [4].
