BACKGROUND The Oswestry Disability Index (ODI) is widely used for patients with back pain. However, few studies have examined its psychometric properties using modern measurement theory. The purpose of this study was to investigate the psychometric properties of the ODI in patients with back pain using Rasch analysis. METHODS A total of 408 patients with back pain participated in this cross-s...

background & aim : low back pain (lbp) has developed as a major public health problem in the western industrialized societies, and the socio-economic burden of this problem has a huge dimension. the aim of this study was to investigate the effect of body mechanics behavior on lbp of workers.| methods & materials : descriptive study includes convenience sample of 290 workers who work at car prod...

Introduction: Differential diagnosis of skeletal and dental relationships is crucial for planning orthodontic treatment. Overbite depth indicator (ODI) and anteroposterior dysplasia indicator (APDI) had been introduced in the past for assessment of vertical and sagittal jaw relationships, respectively. Objective: The objectives of this study were to evaluate the reliability of ODI and APDI i...

BACKGROUND AND AIM OF THE STUDY In Indian patients, in view of language plurality and illiteracy, self-reporting of English version of Oswestry Disability Index (ODI) is not practical. Our study aim was to find out to what extent self-reporting of ODI was possible and in cases where self-reporting was not possible, to see validity and reliability of a translator-assisted ODI score. MATERIALS ...

On the basis of Dunning’s Investment Development Path (IDP) hypothesis, this paper tests the macroeconomic determinants of Chinese Offshore Direct Investment (ODI) from a home-country perspective. We review the recent firmand country-level studies on determinants of Chinese ODI. We propose a model and test seven home-country macroeconomic variables as determinants of Chinese ODI. Our results re...

OBJECTIVES The aim of this study was to test the effectiveness of Provent, an expiratory nasal resistance valve, to prevent the recurrence of OSA following CPAP withdrawal. DESIGN Randomised, partially blinded, parallel, placebo-controlled trial. SETTING Outpatient sleep clinics in the UK (Oxford) and Switzerland (Zurich). PARTICIPANTS 67 patients with OSA receiving CPAP were randomised t...

OBJECTIVES The purpose of this study was to evaluate the plethysmographic signal-derived oxygen desaturation index (ODI) as an inpatient screening strategy to identify sleep-disordered breathing (SDB) in patients with congestive heart failure (CHF). BACKGROUND SDB is highly prevalent among patients hospitalized with CHF but is widely underdiagnosed. We evaluated overnight photoplethysmography...

INTRODUCTION It is impractical to perform polysomnography (PSG) in all surgical patients suspected of having sleep disordered breathing (SDB). We investigated the role of nocturnal oximetry in diagnosing SDB in surgical patients. METHOD All patients 18 years and older who visited the preoperative clinics for scheduled inpatient surgery were approached for study participation. Patients expecte...

This study introduces the use of multivariate linear regression (MLR) and support vector regression (SVR) models to predict postoperative outcomes in a cohort of patients who underwent surgery for cervical spondylotic myelopathy (CSM). Currently, predicting outcomes after surgery for CSM remains a challenge. We recruited patients who had a diagnosis of CSM and required decompressive surgery wit...