| Title |
Initial validation of symptom scores derived from the orthostatic discriminant and severity scale
|
|---|---|
| Published in |
Clinical Autonomic Research, February 2018
|
| DOI | 10.1007/s10286-018-0511-5 |
| Pubmed ID | |
| Authors |
Jacquie Baker, Justin R. Paturel, David M. Sletten, Phillip A. Low, Kurt Kimpinski |
| Abstract |
To develop a scale to quantify and discriminate orthostatic from non-orthostatic symptoms. In the current study, we present validation and reliability of orthostatic and non-orthostatic symptom scores taken from the orthostatic discriminate and severity scale (ODSS). Validity and reliability were assessed in participants with and without orthostatic intolerance. Convergent validity was assessed by correlating symptoms scores with previously validated tools [autonomic symptom profile (ASP) and the orthostatic hypotension questionnaire (OHQ)]. Clinical validity was assessed by correlating scores against standardized autonomic testing. Test-retest reliability was calculated using an intra-class correlation coefficient. Convergent validity: orthostatic (OS) and non-orthostatic (NS) symptom scores from 77 controls and 67 patients with orthostatic intolerance were highly correlated with both the orthostatic intolerance index of the ASP (OS: r = 0.903; NS: r = 0.651; p < 0.001) and the composite score of the OHQ: (OS: r = 0.800; NS: r = 0.574; p < 0.001). Clinical validity: symptom scores were significantly correlated with the total composite autonomic severity score (OS: r = 0.458; NS: r = 0.315; p < 0.001), and the systolic blood pressure change during head-up tilt (OS: r = - 0.445; NS: r = - 0.354; p < 0.001). In addition, patients with orthostatic intolerance had significantly higher symptom scores compared to controls (OS: 66.5 ± 18.1 vs. 17.4 ± 12.9; NS: 19.9 ± 11.3 vs. 10.2 ± 6.8; p < 0.001, respectively). Test-retest reliability: Both orthostatic and non-orthostatic symptom scores were highly reliable (OS: r = 0.956 and NS: r = 0.574, respectively; p < 0.001) with an internal consistency of 0.978 and 0.729, respectively. Our initial results demonstrate that the ODSS is capable of producing valid and reliable orthostatic and non-orthostatic symptom scores. Further studies are ongoing to test sensitivity, specificity and symptom severity. |
X Demographics
The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| France | 1 | 25% |
| United States | 1 | 25% |
| Unknown | 2 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 50% |
| Practitioners (doctors, other healthcare professionals) | 1 | 25% |
| Science communicators (journalists, bloggers, editors) | 1 | 25% |
Mendeley readers
The data shown below were compiled from readership statistics for 15 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 15 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Doctoral Student | 2 | 13% |
| Student > Ph. D. Student | 2 | 13% |
| Researcher | 2 | 13% |
| Student > Master | 2 | 13% |
| Other | 1 | 7% |
| Other | 2 | 13% |
| Unknown | 4 | 27% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 4 | 27% |
| Agricultural and Biological Sciences | 1 | 7% |
| Nursing and Health Professions | 1 | 7% |
| Psychology | 1 | 7% |
| Neuroscience | 1 | 7% |
| Other | 0 | 0% |
| Unknown | 7 | 47% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 March 2018.
All research outputs
#12,948,080
of 23,025,074 outputs
Outputs from Clinical Autonomic Research
#409
of 786 outputs
Outputs of similar age
#158,511
of 330,530 outputs
Outputs of similar age from Clinical Autonomic Research
#10
of 26 outputs
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