scholarly journals Μελέτη της ποιότητας ζωής πριν και μετά από χειρουργική αντιμετώπιση της νοσογόνου παχυσαρκίας

2013 ◽  
Author(s):  
Βασίλειος Χαραλαμπάκης
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Mixed Effect Model ◽  
Mixed Effect ◽  
Cronbach Alpha ◽  
Effect Model ◽  
Sf 36

Ο όρος «Ποιότητα Ζωής» (ΠΖ) αναφέρεται στη συνολική ευζωία του ατόμου η οποία περιλαμβάνει τη συναισθηματική, κοινωνική και φυσική συνιστώσα της ζωής. Όταν, όμως, ο όρος χρησιμοποιείται στο χώρο της ιατρικής και της περίθαλψης αναφέρεται στο κατά πόσο η ευζωία του ατόμου επηρεάζεται σε βάθος χρόνου από μια ασθένεια, αναπηρία ή διαταραχή.Η νοσογόνος παχυσαρκία επηρεάζει την ποιότητα ζωής. Η αξιολόγησή της έχει προσελκύσει σημαντική προσοχή και επιτυγχάνεται μέσω ειδικών εργαλείων μέτρησης, όπως είναι το ερωτηματολόγιο ΠΖ Moorehead-Ardelt II (MAII). Αποτελεί ένα ερωτηματολόγιο ειδικό για την παχυσαρκία που έχει δημιουργηθεί και σταθμιστεί στην Αγγλική γλώσσα και χρησιμοποιείται ευρέως στο χώρο της Βαριατρικής Χειρουργικής. Σύμφωνα με τα διεθνή δεδομένα των μελετών στάθμισης, η υιοθέτηση ενός ερωτηματολογίου σε μια άλλη από την αρχική γλώσσα, προϋποθέτει εφαρμογή προτυποποιημένης μεθοδολογίας για τη μετάφραση και τον έλεγχο της διατήρηση των ψυχομετρικών ιδιοτήτων του. Συνεπώς, η δημιουργία μιας έγκυρης μετάφρασης και η αξιολόγηση των ιδιοτήτων της Ελληνικής έκδοσης του ΜΑΙΙ, κρίθηκαν απαραίτητες πριν από την ευρεία εφαρμογή του ερωτηματολογίου σε βαριατρικούς ασθενείς. Αυτό επιτεύχθηκε μέσω της στάθμισής του με τη χρήση της Ελληνικής έκδοσης του υβριδικού ερωτηματολογίου ΠΖ SF-36 και μιας Οπτικής Αναλογικής Κλίμακας (VAS). Ο βαθμός ομοιογένειας εκτιμήθηκε με το συντελεστή συσχέτισης Cronbach alpha και η επαναληψιμότητα με το συντελεστή ενδοσυσχέτισης intraclass correlation coefficient (ICC). Η δομική εγκυρότητα του ερωτηματολογίου αξιολογήθηκε με τη χρήση δοκιμασίας Pearson μεταξύ των τιμών του ΜΑΙΙ και αυτών του SF-36 και της VAS.Συνολικά 175 ασθενείς εντάχθηκαν στη μελέτη. Η επαναληψιμότητα ελέγχθηκε σε δείγμα 40 ασθενών με μεσοδιάστημα 15 ημερών. Αναδείχθηκε ένας πολύ καλός βαθμός ομοιογένειας με συντελεστή Cronbach alpha της τάξης του 0,85. Παρατηρήθηκε εξαιρετική επαναληψιμότητα με συνολική ICC της τάξης του 0,981. Η σημαντική συσχέτιση μεταξύ της Ελληνικής έκδοσης του ΜΑΙΙ καθώς και κάθε ερώτησης αυτού και του SF-36 και της VAS αποδεικνύουν υψηλή δομική εγκυρότητα. Η αρνητική συσχέτιση μεταξύ της συνολικής βαθμολογίας του μεταφρασμένου ΜΑΙΙ και του ΔΜΣ επιβεβαίωσαν την υψηλή κλινική εγκυρότητά του.Μετά από αυτή την προσεκτική διαδικασία, δημιουργήθηκε η Ελληνική έκδοση του ερωτηματολογίου ΜΑΙΙ και αποδείχθηκε η εγκυρότητα και αξιοπιστία της, στη μέτρηση της ΠΖ σε νοσογόνα παχύσαρκους ασθενείς, πριν και μετά από βαριατρική επέμβαση.Το δεύτερο στάδιο αυτής της μελέτης περιελάμβανε την κλινική εφαρμογή του μεταφρασμένου ερωτηματολογίου για την προοπτική, διαχρονική αξιολόγηση της ΠΖ σε ασθενείς που επρόκειτο να υποβληθούν σε λαπαροσκοπική επιμήκη γαστρεκτομή (LSG). Η ΠΖ θεωρείται μείζον μέσο αξιολόγησης του βαριατρικού αποτελέσματος, όμως προοπτικά δεδομένα των αλλαγών της ΠΖ μετά από LSG σπανίζουν στη βιβλιογραφία.Στη μελέτη εντάχθηκαν προοπτικά, διαδοχικοί νοσογόνα παχύσαρκοι ασθενείς που προσήλθαν σε μια περίοδο 30 μηνών προκειμένου να υποβληθούν σε LSG. Το ερωτηματολόγιο ΜΑΙΙ και μια 10-βάθμια VAS προσφέρθηκαν στους ασθενείς προεγχειρητικά και στους 6, 12 και 24 μήνες μετεγχειρητικά. Τα πλήρη σωματομετρικά δεδομένα καθώς και οι συνοδές παθήσεις καταγράφηκαν σε όλα τα χρονικά σημεία.Στη μελέτη περιελήφθησαν συνολικά 111 ασθενείς (60 γυναίκες και 51 άνδρες, μέσης ηλικίας 36,8±9,2 έτη). Δεν σημειώθηκε κανένας θάνατος ενώ το συνολικό ποσοστό επιπλοκών ανήλθε στο 15,3%. Ο μέσος προεγχειρητικός ΔΜΣ ήταν 49,1±7,5kg/m2 και η % απώλεια του πλεονάζοντος ΔΜΣ (%EBL) ήταν 51,1±14,9% στους 6, 64,2±17,9% στους 12 και 66,4±18% στους 24 μήνες αντίστοιχα. Όλες οι σχετιζόμενες με την παχυσαρκία παθήσεις βελτιώθηκαν σημαντικά. Η μέση συνολική βαθμολογία του ΜΑΙΙ ήταν -0,40±1,30 προεγχειρητικά και αυξήθηκε σε 1,75±0,83, 2,18±0,80 και 1,95±0,71 στους 6, 12 και 24 μήνες μετεγχειρητικά (p<0.001). Η βαθμολογία της VAS αυξήθηκε από 2,8±1,4 προεγχειρητικά σε 9,1±1,1, 9,2±1,1 και 9,0±1,3 στους 6, 12 και 24 μήνες μετεγχειρητικά. Η βελτίωση της βαθμολογία του ΜΑΙΙ διατηρήθηκε καλύτερα στις γυναίκες στους 24 μήνες, παρά το γεγονός ότι ο τελικός ΔΜΣ ήταν συγκρίσιμος στα 2 φύλα. Ο ΔΜΣ δε σχετιζόταν σημαντικά με τη βαθμολογία ΜΑΙΙ σε κάθε χρονικό σημείο της μελέτης. Η %EBL, το γυναικείο φύλο, ο μικρότερος αριθμός συνοδών παθήσεων και η ίαση του ΣΔ2 και της υπνικής άπνοιας αποτέλεσαν σημαντικούς προγνωστικούς παράγοντες υψηλής ΠΖ στο τέλος της μελέτης, όπως προέκυψε από πολυπαραγοντική ανάλυση παλινδρόμησης και από την ανάλυση Mixed effect model. Ενδιαφέρον ήταν ότι οι ασθενείς που απαλλάχθηκαν από το σακχαρώδη διαβήτη, παρουσίασαν υψηλές τιμές ΠΖ παρά το γεγονός ότι η %EBL ήταν σημαντικά μικρότερη.Η LSG αποτελεί μια ασφαλή και αποτελεσματική βαριατρική επέμβαση με αποδεκτή νοσηρότητα, ικανοποιητική και διατηρούμενη απώλεια σωματικού βάρους καθώς και σημαντική βελτίωση της ΠΖ, ειδικά σε ασθενείς στους οποίους βελτιώνονται οι συνοδές παθήσεις. Το μεταβολικό αποτέλεσμα της Βαριατρικής Χειρουργικής φαίνεται οτι είναι περισσότερο σημαντικό από την απώλεια βάρους, όσον αφορά στη βελτίωση της ΠΖ. Η ανάλυση της ΠΖ είναι σημαντική για μια πλήρη αξιολόγηση του βαριατρικού αποτελέσματος, ενώ επιτρέπει την αναγνώριση υποομάδων ασθενών που θα ωφεληθούν τα μέγιστα από τη βαριατρική επέμβαση καθώς και εκείνων που θα χρειαστούν κάποιας μορφής παρέμβαση κατά τη μετεγχειρητική παρακολούθηση, προκειμένου να διατηρήσουν το βέλτιστο αποτέλεσμα ΠΖ. Η σημασία του μεταβολικού αποτελέσματος της LSG στην ΠΖ αποκαλύπτει ενδιαφέροντες δρόμους για το μέλλον της Βαριατρικής Χειρουργικής.

Variation in Cervical Length over Time during a Single Transvaginal Ultrasound Examination

2018 ◽  
Vol 36 (08) ◽  
pp. 781-784
Author(s):  
Katherine A. Connolly ◽  
Luciana Vieira ◽  
Elizabeth M. Yoselevsky ◽  
Stephanie Pan ◽  
Joanne L. Stone
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Ultrasound Examination ◽  
Transvaginal Ultrasound ◽  
Intraclass Correlation ◽  
Cervical Length ◽  
Linear Mixed Effect Model ◽  
Mixed Effect ◽  
Time Points ◽  
Significant Difference

Objective To quantify the degree of change in cervical length (CL) over a 3-minute transvaginal ultrasound. Study Design We conducted a prospective observational study of nulliparous patients who underwent routine transvaginal CL screening at the time of their second-trimester ultrasound. We recorded CL at four time points (0, 1, 2, 3 minutes) and compared these values to determine the minute-to-minute change within a single patient. Results A total of 771 patients were included. The mean gestational age was 20.8 weeks (±0.84). We used a linear mixed effect model to assess if each minute during the ultrasound is associated with a change in CL. The intraclass correlation coefficient between minute 0 to minute 3 was 0.82 (95% confidence interval: 0.80, 0.84). This indicates that there is a relatively high within-patient correlation in CL during their ultrasound. Additionally, we stratified patients based on their starting CL; the intraclass correlation coefficient remained high for all groups. We additionally compared CL at each minute. Although there is a statistically significant difference between several time points, the actual difference is small and not clinically meaningful. Conclusion The variation in CL over a 3-minute transvaginal ultrasound examination is not clinically significant. It may be reasonable to conduct this examination over a shorter period.

scholarly journals Translation and cross-cultural adaptation of the Scleroderma Health Assessment Questionnaire to Brazilian Portuguese

2014 ◽  
Vol 132 (3) ◽  
pp. 163-169 ◽  
Author(s):  
Aline Cristina Orlandi ◽  
Fernanda Pontes Cardoso ◽  
Lucas Macedo Santos ◽  
Vaneska da Graça Cruz ◽  
Anamaria Jones ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Cultural Adaptation ◽  
External Validity ◽  
Health Assessment Questionnaire ◽  
Intraclass Correlation ◽  
Health Assessment ◽  
Pearson’S Correlation Coefficient ◽  
Sf 36 ◽  
Assessment Questionnaire

CONTEXT AND OBJECTIVE:Systemic sclerosis is an autoimmune disease characterized by abnormalities of vascularization that may cause fibrosis of the skin and other organs and lead to dysfunction. It is therefore essential to have tools capable of evaluating function in individuals with this condition. The aim of this study was to translate the Scleroderma Health Assessment Questionnaire (SHAQ) into Portuguese, adapt it to Brazilian culture and test its validity and reliability.DESIGN AND SETTING:The validation of SHAQ followed internationally accepted methodology, and was performed in university outpatient clinics.METHODS:SHAQ was translated into Portuguese and back-translated. In the cultural adaptation phase, it was applied to 20 outpatients. Items not understood by 20% of the patients were modified and applied to another 20 outpatients. Twenty patients were interviewed on two different occasions to determine the validity and reliability of the questionnaire: two interviewers on the first occasion and one interviewer 14 days later. To determine the external validity, comparisons were made with Health Assessment Questionnaire (HAQ), Disabilities of the Arm, Shoulder and Hand (DASH) and short form-36 (SF-36).RESULTS:In the interobserver evaluation, Pearson's correlation coefficient and the intraclass correlation coefficient were both 0.967. In the intraobserver evaluation, Pearson's correlation coefficient was 0.735 and the intraclass correlation coefficient was 0.687. Regarding external validity, SHAQ scores were statistically correlated with all measurements, except the general health domain of SF-36 and the work-related score (Q2) of DASH.CONCLUSION:The Brazilian version of SHAQ proved to be valid and reliable for assessing function in patients with diffuse systemic sclerosis.

scholarly journals Development and Validation of a Competency Self-Assessment Tool for The Nurse Interns

2020 ◽  
Vol 2 (4) ◽  
pp. 9
Author(s):  
Nema F. Saad ◽  
Hanaa M. Abd Rabou
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Assessment Tool ◽  
Intraclass Correlation ◽  
Attitude Scale ◽  
Alpha Coefficient ◽  
Self Assessment ◽  
Cronbach Alpha ◽  
Cronbach Alpha Coefficient ◽  
Internship Programs

Contents: Nurse Interns need more attention to their self-confidence and self-assessment abilities. Self-assessment is an essential approach for testing their knowledge, skills, and attitudes. Aim: This study aimed to develop a competency self-assessment tool for nurse interns and test its validity and reliability. Methods: Methodological study for the development of a tool. The study was carried out at Ain-Shams University Hospitals on all 89-nurse interns in the internship year, and a jury group of 21 faculty members and 21 nurse managers for validation. The researchers developed a preliminary self-assessment tool with six selected nursing core competencies presented to the jury group for validation. Results: The finalized tool had a very high total face CVI-S (0.99). The CVI-S ranged between 0.94 for environmental safety and hazardous materials safety and 1.00 for the content validity's attitude scale. The total scale had a CVI-S as high as 0.98. The tool had excellent overall reliability with a Cronbach alpha coefficient as high as 0.901 and an intraclass correlation coefficient of 0.888. The attitude scale also had excellent reliability with a Cronbach alpha coefficient of 0.965 and an intraclass correlation coefficient of 0.964.  In the application of the tool, 95.5% of the nurse interns considered their competencies adequate. In terms of grades, only 32.6% and 10.1% considered themselves having very good and excellent competencies, respectively, and 70.8% had a positive attitude toward self-assessment. Conclusion: A valid and reliable competency self-assessment tool was developed for nurse interns; it can be applied in various nursing internship programs. It could be used by the administrators of the internship programs to identify the individual learning and training needs of nurse interns. Further studies are proposed to evaluate the utility of the tool in evaluating and improving these programs. 

scholarly journals Cross-cultural adaptation and validity of the Chinese version of the Oxford elbow score

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
James Reeves Mbori Ngwayi ◽  
Jie Tan ◽  
Ning Liang ◽  
Emmanuel Gildas Eric Sita ◽  
Daniel Edward Porter
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Internal Consistency ◽  
Intraclass Correlation ◽  
Chinese Version ◽  
Expert Committee ◽  
Social Psychological ◽  
Sf 36 ◽  
Patient Reported ◽  
Chinese Mandarin

Abstract Background The Oxford Elbow score (OES) is a patient-reported outcome measure designed to evaluate patients before and after elbow surgery. Although various translated versions of the score are available, there is no Chinese mandarin version. The aim of this study was to develop a Chinese language version of the OES and evaluate its psychometric properties for clinical use. Methods The English version of the OES was forward translated into Chinese, followed by a backward translation into English. Then a final Chinese version was produced following expert committee discussions and pilot study of 11 patients. A smart device compatible electronic version of the OES was designed and completed by 70 patients with elbow pathology alongside the Quick-Dash and the SF-36. Reliability was assessed by measuring intraclass correlation coefficient (ICC) for test-retest reliability and Cronbach’s alpha for internal consistency. Spearman’s correlation coefficient was used to test the construct validity. Confirmatory factor analysis (CFA) was performed to evaluate the 3-factor structure of the OES. Results The overall Cronbach’s α coefficient was 0.906 and for the 3 different domains Function, Pain, and Social-psychological was 0.806, 0.796, and 0.776 respectively. The overall intraclass correlation coefficient was 0.764 and for the three different domains Function, Pain, and Social-psychological was 0.764, 0.624, and 0.590 respectively. The Spearman’s coefficient for correlation, between the QuickDASH and OES domains Function, Pain, and Social-psychological, was − 0.824, − 0.734, and − 0.622 respectively, showing strong correlation (r > 0.5; p < 0.01). There were moderate correlations between OES domains and the physical functioning, role physical, and strong correlations with bodily pain subscales of the PCS domain of the SF-36; results were insignificant for all other subscales. Conclusion Our translated Chinese mandarin OES version (mainland) was reliable and valid, suitable for evaluating elbow disorders in the Chinese population. Reliability was measured using both the Cronbach’s α for internal consistency and the intraclass correlation. Results were classified as “excellent” and were similar to results from the original OES. Electronic PROMs were used instead of the traditional paper-based PROMs for collection of data which was well tolerated by patients.

scholarly journals Progression of Beat-to-Beat Blood Pressure Variability Despite Best Medical Management

Hypertension ◽  
2021 ◽  
Vol 77 (1) ◽  
pp. 193-201
Author(s):  
Alastair J.S. Webb ◽  
Amy Lawson ◽  
Karolina Wartolowska ◽  
Sara Mazzucco ◽  
Peter M. Rothwell
Keyword(s):  
Blood Pressure ◽  
Cardiovascular Risk ◽  
Pulse Wave Velocity ◽  
Correlation Coefficient ◽  
Wave Velocity ◽  
Intraclass Correlation Coefficient ◽  
Pulse Wave ◽  
Intraclass Correlation ◽  
Systolic Pressure ◽  
Mixed Effect

Beat-to-beat variability in blood pressure (BP) is associated with recurrent stroke despite good control of hypertension. However, no study has identified rates of progression of beat-to-beat BP variability (BPV), its determinants, or which patient groups are particularly affected, limiting understanding of its potential as a treatment target. In consecutive patients one month after a transient ischaemic attack or nondisabling stroke (Oxford Vascular Study), continuous noninvasive BP was measured beat-to-beat over 5 minutes (Finometer). Arterial stiffness was measured by carotid-femoral pulse wave velocity (Sphygmocor). Repeat assessments were performed at the 5-year follow-up visit and agreement determined by intraclass correlation coefficient. Rates of progression of systolic BPV (SBPV) and diastolic BPV (DBPV) and their determinants were estimated by mixed-effect linear models, adjusted for age, sex, and cardiovascular risk factors. One hundred eighty-eight of 310 surviving, eligible patients had repeat assessments after a median of 5.8 years. Pulse wave velocity was highly reproducible but SBPV and DBPV were not (intraclass correlation coefficient: 0.71, 0.10, and 0.16, respectively), however, all 3 progressed significantly (pulse wave velocity, 2.39%, P <0.0001; SBPV, 8.36%, P <0.0001; DBPV, 9.7, P <0.0001). Rate of progression of pulse wave velocity, SBPV, and DBPV all increased significantly with age ( P <0.0001), with an increasingly positive skew and were particularly associated with female sex (pulse wave velocity P =0.00035; SBPV P <0.0001; DBPV P <0.0001) and aortic mean SBP (SBPV P =0.037, DBPV P <0.0001). Beat-to-beat BP variability progresses significantly in high-risk patients, particularly in older individuals with elevated aortic systolic pressure. Beat-to-beat BPV and its progression represent potential new therapeutic targets to reduce cardiovascular risk.

scholarly journals Patient assessment of constipation quality of life questionnaire: validity and reliability for Indonesian population

2019 ◽  
Vol 28 (4) ◽  
pp. 345-50
Author(s):  
Murdani Abdullah ◽  
Hasan Maulahela ◽  
Amanda Pitarini Utari ◽  
Pratiwi Dyah Kusumo ◽  
Amin Soebandrio ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Psychometric Evaluation ◽  
Average Score ◽  
Patient Assessment ◽  
Cronbach's Alpha ◽  
Sf 36

BACKGROUND Constipation is a condition commonly encountered by physicians, causing a significant reduction in patients’ quality of life. Therefore, successful management of constipation should also include increase the quality of life. The Patient Assessment of Constipation Quality of Life (PAC-QOL) questionnaire is a questionnaire developed to address this issue. However, this questionnaire had not been translated into the Indonesian language. This study was aimed to adapt PAC-QOL into Indonesian culture and perform the psychometric evaluation. METHODS Translation and cultural adaptation were performed based on the linguistic validation guidelines by Acquadro et al in 2012. To perform the psychometric evaluation, a total of 64 subjects in Petamburan district in Jakarta, Indonesia, were recruited from February to March 2018. Test-retest reliability was assessed by completing the PACQOL twice with one-week interval. Subjects also completed the Short Form 36 (SF-36) Health Survey Questionnaire to assess concurrent validity. Internal consistency was analyzed with Cronbach’s alpha value (>0.7) and the intraclass correlation coefficient. RESULTS The mean (standard deviation) overall average score was 1.52 (0.66), while the Cronbach’s alpha value for the overall average score was 0.910. Concurrently, the intraclass correlation coefficient for the overall score was 0.87. Simultaneously, several experts judged content validity to be adequate. All the questions had significant correlations with their respective domains. Moreover, each domain of PAC-QOL also had a significant correlation with several SF-36 domains. CONCLUSIONS The psychometric evaluation performed in this study demonstrated that the Indonesian version of the PAC-QOL was valid and reliable, suggesting that this questionnaire can be used in daily clinical practice.

scholarly journals Equal Opportunities for Stroke Survivors’ Rehabilitation: A Study on the Validity of the Upper Extremity Fugl-Meyer Assessment Scale Translated and Adapted into Romanian

Medicina ◽  
2020 ◽  
Vol 56 (8) ◽  
pp. 409
Author(s):  
Nadinne Roman ◽  
Roxana Miclaus ◽  
Angela Repanovici ◽  
Cristina Nicolau
Keyword(s):  
Upper Extremity ◽  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Goodness Of Fit ◽  
Pearson Correlation ◽  
Intraclass Correlation ◽  
Functional Independence ◽  
Cronbach Alpha ◽  
Post Stroke ◽  
Fit Index

Background and objectives: The Upper Extremity Fugl-Meyer Assessment (UEFMA) is one of the most recommended and used methods of clinical evaluation not only for post-stroke motor function disability conditions but also for physiotherapy goal-setting. Up to the present, an official Romanian version has not been officially available. This study aims to carry out a translation, adaptation, and validation of UEFMA in Romanian, thus giving both patients and medical practitioners the equal opportunity of benefiting from its proficiency. Material and methods: The English version of the motor component of UEFMA was back and forth translated in the assent of best practice translation guidelines. The research was performed on a group of 64 post-stroke in-patients regarding psychometric properties for content validation and an exploratory and confirmatory factorial analysis was performed using the Bayesian model. To assess internal consistency and test–retest reliability, we used the Cronbach Alpha index and Intraclass Correlation Coefficient (ICC). We used Pearson correlation with the Functional Independence Measure (FIM) and Modified Rankin Scale (MRS) to determine concurrent validation. Standardized response mean (SRM) was applied to determine the responsiveness of the instrument used. Results: After performing the exploratory factor analysis, a single factor was extracted, with an Eigenvalue of 19.363, which explained 64.543% of the variation. The model was confirmed by Bayesian exploration, with Root Mean Square Residual (RMR) 0.051, Goodness-of-fit Index (GFI) 0.980, Normed-Fit Index (NFI) 0.978 and Relative Fit Index (RFI) 0.977. The Cronbach Alpha value was 0.981, the Intraclass Correlation Coefficient (ICC) index for average measures was 0.992, the Pearson correlation with FIM 0.789, and MRS −0.787, while the SRM was 1.117. Conclusions: The Romanian version of the UEFMA scale is a reliable, responsive and valid tool which can be used as a standardized assessment in post-stroke patients across Romania.

scholarly journals Reliability and Consistency of the Vestibular/Ocular Motor Screening (VOMS) Assessment Near Point of Convergence (NPC) Trials

2019 ◽  
Vol 34 (5) ◽  
pp. 767-767
Author(s):  
N Ernst ◽  
A Sufrinko ◽  
M Collins ◽  
A Kontos
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Intraclass Correlation ◽  
Ocular Motor ◽  
Chi Square ◽  
Mixed Effect ◽  
Male Age ◽  
Multiple Trials ◽  
Absolute Agreement ◽  
Chi Square Analysis

Abstract Purpose To examine the reliability of near point of convergence (NPC) across three trials and determine if one trial of NPC is adequate to identify receded NPC post-concussion. Methods Participants included 263 concussed patients (64.3% male; age=16.92±3.49 years) evaluated within 21 days of injury. NPC was measured in centimeters from the tip of the nose using a fixation stick and a Gulick anthropometric tape measure. A two-way, mixed effect, absolute agreement intraclass correlation coefficient (ICC 3,1) was conducted to evaluate reliability across the three trials. A chi-square analysis examined consistency of NPC classification (normal/abnormal) on the initial trial compared to average across three trials. Results Reliability of the three trials was high (.91 [95%CI, .89–.93]). Agreement between Trial 1 classification and classification based on average of all three trials was high (96.2%). Of the 10 participants who were classified differently for Trial 1 compared to average trials, 8 had borderline (e.g., 4–6 cm) measurements on the first trial. Conclusion NPC measurement across trials is reliable for the overall sample, but those who fell well below (i.e. 0–1cm) or well above (>8cm) clinical cutoffs on the first trial were almost always below or above respective cutoffs on the average convergence (>99%). Results suggest it is important to measure NPC across multiple trials for patients with initial borderline measurement.

Validity and Reliability of the Turkish Version of LHB Score

2021 ◽  
Vol 30 (1) ◽  
pp. 30-36
Author(s):  
Elshan Najafov ◽  
Şeyda Özal ◽  
Ahmet Yiğit Kaptan ◽  
Coşkun Ulucaköy ◽  
Ulunay Kanatlı ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Internal Consistency ◽  
Intraclass Correlation ◽  
Validity And Reliability ◽  
Turkish Version ◽  
Excellent Correlation ◽  
Cronbach Alpha ◽  
Constant Murley Score ◽  
Long Head

Introduction: Long head of biceps (LHB) pathologies are an important cause of pain and dysfunction. As LHB pathologies have specific components from other underlying or related pathologies, the LHB score is designed for an accurate assessment. The aim of this study was to adapt the LHB score into Turkish and to assess its validity and reliability. Materials and Methods: LHB score was translated and culturally adapted from English to Turkish, and then it was applied to 62 patients with biceps long head pathology. The reliability of the scale was checked through internal consistency and test–retest methods. Internal consistency was computed with Cronbach alpha value. Test–retest reliability was assessed using an intraclass correlation coefficient. American Shoulder and Elbow Surgeons Standard Shoulder Assessment Form and modified Constant–Murley score were used to analyze concurrent validity. Results: The Cronbach alpha value of the scale was found as .640. When the subsections of LHB score were computed separately, Cronbach alpha levels of pain/cramps and cosmesis sections were found as .753 and .774, respectively. The intraclass correlation coefficient value of the scale was found to be excellent (.940; P < .001). The total LHB score was determined to have a good positive correlation with the American Shoulder and Elbow Surgeons Standard Shoulder Assessment Form (.527) and Constant–Murley score (.516). But an excellent correlation was revealed between the pain/cramps section of LHB score and other pain sections in American Shoulder and Elbow Surgeons Standard Shoulder Assessment Form (.811) and Constant–Murley score (.816) (P < .001). There was an excellent correlation (.916) between cosmesis section and Popeye sign (P < .001). There was a moderate correlation (.469) between elbow-flexion strength section of LHB score and the digital handheld dynamometer outcomes (P < .001). Conclusion: The Turkish version of the LHB is a valid and reliable tool, especially for biceps pathologies.

Inference for variance components in linear mixed-effect models with flexible random effect and error distributions

2020 ◽  
Vol 29 (12) ◽  
pp. 3586-3604
Author(s):  
Tom Chen ◽  
Rui Wang
Keyword(s):  
Correlation Coefficient ◽  
Intraclass Correlation Coefficient ◽  
Random Effects ◽  
Bootstrap Method ◽  
Intraclass Correlation ◽  
Random Effect ◽  
Correlated Data ◽  
Parameter Distribution ◽  
Mixed Effect ◽  
Error Distributions

In many biomedical investigations, parameters of interest, such as the intraclass correlation coefficient, are functions of higher-order moments reflecting finer distributional characteristics. One popular method to make inference for such parameters is through postulating a parametric random effects model. We relax the standard normality assumptions for both the random effects and errors through the use of the Fleishman distribution, a flexible four-parameter distribution which accounts for the third and fourth cumulants. We propose a Fleishman bootstrap method to construct confidence intervals for correlated data and develop a normality test for the random effect and error distributions. Recognizing that the intraclass correlation coefficient may be heavily influenced by a few extreme observations, we propose a modified, quantile-normalized intraclass correlation coefficient. We evaluate our methods in simulation studies and apply these methods to the Childhood Adenotonsillectomy Trial sleep electroencephalogram data in quantifying wave-frequency correlation among different channels.

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