# of studies reporting psychometric properties: 1
Interpretability
- Total scores range from 0 to 48
- Higher scores indicate greater overall problems with secondary conditions.
- No meaningful cut points, normative data or responsiveness data have been established at this time for the SCI population.
- Published data for the SCI population is available for comparison (see Interpretability section of the Research Summary).
MCID: not established in SCI
SEM: not established in SCI
MDC: not established in SCI
Reliability
- The SCI-SCS was administered across 5 time-points, spanning 2 years post-intervention.
- The internal consistency across each of the time points was Moderate to High (Cronbach’s a=0.73 – 0.869).
- The test-retest reliability values across the time points ranged from Moderate to High (r=0.569-0.91).
(Kalpakjian et al. 2007; Conti et al. 2019; Arora et al. 2015)
Validity
The SCI-SCS total score has Moderate to High correlations with the 6 items of the SF-12 (r=0.317 to 0.644); Moderate correlations with the SF-8 Physical Component (PCS) and Patient Health Questionnaire (r=0.36 and 0.43) (PHQ-9), and Low correlations with the Modified Barthel Index (MBI), SF-8 Mental Component summary (PCS), Generalized Anxiety Disorder-7 (GAD-7), and Tetraplegia (r=0.20-0.30).
(Kalpakjian et al. 2007; Conti et al. 2019)
Responsiveness
No values were reported for the responsiveness of the SCI-SCS for the SCI population.
Floor/Ceiling Effect
- There are ceiling effects on 3 categories of secondary conditions (>20% scored in the highest category):
- Sexual dysfunction (26.2%)
- Chronic pain (32.3%)
- Joint and muscle pain (29.2%)
- There are floor effects on all 16 categories of secondary conditions (>20% scored in the lowest category):
- Injury caused by loss of sensation (76.9%)
- Muscle spasms (41.5%)
- Contractures (67.7%)
- Heterotopic bone ossification (89.2%)
- Diabetes mellitus (87.7%)
- Bladder dysfunction (36.9%)
- Bowel dysfunction (40.0%)
- Urinary tract infections (61.5%)
- Sexual dysfunction (43.1%)
- Autonomic dysreflexia (70.8%)
- Postural hypotension (80.0%)
- Circulatory problems (50.8%)
- Respiratory problems (80.0%)
- Chronic pain (33.8%)
- Joint and muscle pain (29.2%)
(Kalpakjian et al. 2007; Conti et al. 2019)
Reviewers
Dr. Vanessa Noonan, John Zhu, Jeremy Mak, Matthew Querée, Risa Fox
Date Last Updated
3 August 2020
