Test-retest reliability at the item level and total score level of the Norwegian version of the Spinal Cord Injury Falls Concern Scale (SCI-FCS)

A mixed-methods study examining perceptions of fear of falling among community-dwelling people who use wheelchairs full-time

Objective: There is growing evidence that fear of falling (FOF) is common in people who use wheelchairs full-time and negatively influence their performance of daily activities and quality of life. The purpose of this study was to gain an in-depth understanding of perceptions related to FOF among people who use wheelchairs full-time.Methods: Mixed-method analysis was conducted using semi-structured interviews and surveys to gain insight into FOF. Surveys included demographic information; Spinal Cord Injury-Fall Concerns Scale (SCI-FCS); a questionnaire that directly assesses FOF and associated activity curtailment; and Fall Control Scale (FCS).Results: Among 39 participants (age = 43.1 ± 15.6 years, disability duration = 21.2 ± 11.1 years), 27 participants (69%) reported FOF. Participants with less perceived ability to control falls indexed by FCS reported higher SCI-FCS scores, indicating greater FOF (rs = -0.384, p = 0.016). Qualitative findings revealed that participants felt that FOF developed due to sustaining fall-related injuries or limited ability to recover from a fall. Some participants perceived falling as a part of their lives. They believed that it was not the cause of developing FOF.Conclusions: Among people who use wheelchairs full-time, FOF is prevalent and may develop due to fears of sustaining injuries or being unable to get up after falling. Developing an evidenced-based education protocol aimed at managing falls (e.g., establishing a fall recovery strategy and education on techniques to reduce injury during falls) is needed to minimize FOF people who use wheelchairs full-time.

Cross-cultural adaptation, reliability, and validity study of the Turkish version of the "Spinal Cord Injury-Falls Concern Scale"

PURPOSE

This study aims to conduct a Turkish validity and reliability study of the Spinal Cord Injury-Falls Concern Scale (SCI-FCS).

METHODS

The study involved 134 volunteer patients with spinal cord injury. Various validity analyses, including content validity analysis, Confirmatory Factor Analysis (CFA), Pearson product-moment correlation coefficient, and Cronbach's alpha value based on a single application for reliability, were employed. The Falls Efficacy Scale-International (FES-I) was used for criterion validity.

RESULTS

All the standardized regression coefficients for the single factor measurement model established with 16 items in the scale are above 0.84. The CFA model, also with a single factor and 16 items, yields the following fit indices: Root-Mean-Square Error of Approximation value of 0.15, Standardized Root Mean Residual Squares value of 0.06, Chi-square value of 2.20, and Comparative Fit Index and Non-Normed Fit Index values of 0.98. The scores they received from the SCI-FCS and the scores they received from the FES-I scale have a statistically significant positive correlation (p < 0.01). The test-retest reliability coefficient value is 0.81, and the Cronbach Alpha value is 0.97.

CONCLUSION

The Turkish version of the SCI-FCS is a valid and reliable tool for determining fall concerns for patients with spinal cord injury.

Falls risk perception measures in hospital: a COSMIN systematic review

Falls prevention in hospital continues to be a research priority because of the poor health outcomes and financial burdens that can arise. Recently updated World Guidelines for Falls Prevention and Management strongly recommend evaluating patients' concerns about falling as part of a multifactorial assessment. The aim of this systematic review was to evaluate the quality of falls risk perception measures for adults in a hospital setting. This review was conducted using the Consensus-based Standards for the selection of health Measurement Instruments guidelines and provides a comprehensive summary of these instruments, including psychometric properties, feasibility and clinical recommendations for their use. The review followed a prospectively registered protocol, in which a total of ten databases were searched between the years 2002 and 2022. Studies were included if the instruments measured falls risk perception and/or other psychological falls constructs, if they were conducted in a hospital setting and if the target population contained hospital inpatients. A total of 18 studies met the inclusion criteria, encompassing 20 falls risk perception measures. These falls risk perception instruments were grouped into five falls-related constructs: Balance Confidence, Falls Efficacy/Concern, Fear of Falling, Self-Awareness and Behaviour/Intention. Two of the patient reported outcome measures (PROMs) received Class A recommendations (Falls Risk Perception Questionnaire and the Spinal Cord Injury-Falls Concern Scale); however, this rating is only applicable for the populations/context described in the studies. Thirteen PROMs received Class B recommendations, solidifying the need for further validation studies of these PROMs.

Cross-cultural adaptation and measurement properties of the Brazilian Portuguese version of the spinal cord injury - Falls Concern Scale

STUDY DESIGN

Psychometric study.

OBJECTIVES

To cross-culturally adapt the spinal cord injury-falls concern scale (SCI-FCS) to the Brazilian Portuguese language and to evaluate its measurement properties.

SETTING

SARAH Network of Rehabilitation Hospitals, Belo Horizonte, Brazil.

METHODS

The SCI-FCS was translated and culturally adapted to the Brazilian- Portuguese language, following recommended guidelines. The following measurement properties were verified: internal consistency (Cronbach's α), test-retest reliability (ICC and quadratic-weighted kappa coefficients), and construct validity (Rasch analysis).

RESULTS

One-hundred and thirty individuals participated. The median SCI-FCS-Brazil score was 27 (22-34). The Cronbach's α was 0.95; ICC was 0.92 (95% CI, 0.86-0.95) for the total test-retest scores, and the Kappa coefficients ranged from 0.04 to 0.87 (95% CI, 0.01-1) for the item-level reliability. Rasch analysis reliability index was 0.81 and 0.98 and the separation index was 2.10 and 6.25 for the persons and items, respectively. Both items and persons fitted the statistics model's expectations, ensuring its unidimensionality.

CONCLUSIONS

The SCI-FCS-Brazil showed adequate measurement properties. Its use in manual wheelchair users with SCI is recommended to help defining rehabilitation strategies.

Quality of life, concern of falling and satisfaction of the sit-ski aid in sit-skiers with spinal cord injury: observational study

STUDY DESIGN

Observational study.

OBJECTIVE

To describe (1) user satisfaction, (2) the Quality of Life (QoL) and (3) fear of falling in individuals with tetraplegia or paraplegia who used a mono-ski for sit-skiing.

SETTING

Spinal units and Sport associations.

METHODS

An observational study of people with spinal cord injury (SCI) who used a sit-ski. Participants were recruited in various SCI rehabilitation centers and sport associations. Participants completed three assessment tools: the Quebec User Evaluation of Satisfaction with assistive Technology (QUEST 2.0); the World Health Organization Quality of Life (WHOQoL-BREF); the Spinal Cord Injury Fall Concern Scale (SCI-FCS). Results were evaluated with chi-squared test and Kolmogorov-Smirnov's test and the significance was set for p values < 0.05.

RESULTS

Fifteen participants were included. Results showed positive and statistically significant values for all the items of the SCI-FCS related to fear of falling, and for most of the items of the WHOQoL-BREF related to QoL and the QUEST 2.0 related to satisfaction with the device.

CONCLUSIONS

This study highlights that sit skiing is correlated with high levels of satisfaction with the mono-ski, increases in QoL, and low levels of fear of falling. In adding these findings to the existent literature, it can be stated with more certainty that sit-skiing is a sport that can be recommended in rehabilitation and sports therapy programs.

Intraclass correlation - A discussion and demonstration of basic features

A re-analysis of intraclass correlation (ICC) theory is presented together with Monte Carlo simulations of ICC probability distributions. A partly revised and simplified theory of the single-score ICC is obtained, together with an alternative and simple recipe for its use in reliability studies. Our main, practical conclusion is that in the analysis of a reliability study it is neither necessary nor convenient to start from an initial choice of a specified statistical model. Rather, one may impartially use all three single-score ICC formulas. A near equality of the three ICC values indicates the absence of bias (systematic error), in which case the classical (one-way random) ICC may be used. A consistency ICC larger than absolute agreement ICC indicates the presence of non-negligible bias; if so, classical ICC is invalid and misleading. An F-test may be used to confirm whether biases are present. From the resulting model (without or with bias) variances and confidence intervals may then be calculated. In presence of bias, both absolute agreement ICC and consistency ICC should be reported, since they give different and complementary information about the reliability of the method. A clinical example with data from the literature is given.