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1.
Sensors and Actuators B: Chemical ; 392:134111, 2023.
Article in English | ScienceDirect | ID: covidwho-20245347

ABSTRACT

Colorimetric biosensors are simple but effective tools that are gaining popularity due to their ability to provide low-cost, rapid, and accurate detection for viruses like the Novel coronavirus, Influenza A, and Dengue virus, especially in point-of-care testing (POCT) and visual detection. In this study, a smartphone-assisted nucleic acid POCT was built using hybridization chain reaction (HCR), magnetic beads (MBs), and oxidized 3,3′,5,5′-tetramethylbenzidine (TMB2+)-mediated etching of gold nanorods (GNRs). The application of HCR without enzyme isothermal characteristics and MBs with easy separation, can quickly amplify nucleic acid signal and remove other reaction components. The blue shift of longitudinal localized surface plasmon resonance (LSPR) based on GNRs showed significant differences in etching color for different concentrations of target nucleic acid, which convert the signal into a visually semi-quantitative colorimetric result, achieving quantitative analysis with the color recognition software built into smartphones. This strategy, which only takes 40 min to detect and is two-thirds less time than the PCR, was successfully applied for the detection of the Dengue target sequence with a detection limit of 1.25 nM and exhibited excellent specificity for distinguishing single-base mutations, indicating broad application prospects in clinical laboratory diagnosis and enriching the research of nucleic acid POCT.

2.
Diabetic Medicine ; 40(Supplement 1):139-140, 2023.
Article in English | EMBASE | ID: covidwho-20243788

ABSTRACT

Objectives: Insulin optimisation requires review of glucose monitoring;Covid-19 posed challenges to this. We evaluated DBm -a remote monitoring platform utilising a glucometer and smartphone app. Method(s): Evaluation was from January to November 2021. Inclusion criteria was insulin treated diabetes with HbA1c greater than 68mmol/mol. HbA1c, demographics, frequency of CBG uploads and interactions with clinicians were collected. Result(s): 97 patients were offered DBm. 48.5% used the app. There were no statistically significant differences in gender (p = 0.05), age (p = 0.36), type of diabetes (p = 0.13) or deprivation index (p = 0.96) between users and non-users. Patients of white ethnicity were less likely to use the platform (p = 0.01). Amongst users, 70% had a reduction of HbA1c of at least 5mmol/mol over six months, with a mean reduction of 25.6mmol/mol (p = 0.01). There was no difference in age (p = 0.64), gender (p = 0.4), and type of diabetes (p = 0.23) between responders and non-responders. There was also no difference in number of call back requests generated by patients (p = 0.32) or number of CBG uploads (p = 0.899) between responders and non-responders. Conclusion(s): Uptake of the remote monitoring solution was just under 50%, with no evidence of digital exclusion, although the finding that white ethnicity patients were less likely to use the system needs further exploration. Most users had improved glucose control, but there was no association with numbers of tests or call back requests. This study demonstrates that insulin optimisation can effectively be delivered using a remote glucose monitoring system. Future work will explore patient experience and patient satisfaction.

3.
Distributed Computing to Blockchain: Architecture, Technology, and Applications ; : 415-424, 2023.
Article in English | Scopus | ID: covidwho-20243398

ABSTRACT

Due to improvements in information and communication technology and growth of sensor technologies, Internet of Things is now widely used in medical field for optimal resource management and ubiquitous sensing. In hospitals, many IoT devices are linked together via gateways. Importance of gateways in modernization of hospitals cannot be overstated, but their centralized nature exposes them to a variety of security threats, including integrity, certification, and availability. Block chain technology for level monitoring in oxygen cylinders is a scattered record containing the data related to oxygen levels in the cylinder, patient's name, patient's ID number, patient's medical history, and all connected information carried out and distributed among the hospitals (nodes) present in the locality (network). Designing an oxygen level monitoring technique in an oxygen cylinder used as the support system for COVID-19-affected patients is a challenging task. Monitoring the level of oxygen in the cylinders is very important because they are used for saving the lives of the patients suffering from COVID-19. Not only the COVID-19 patients are dependent on this system, but this system will also be helpful for other patients who require oxygen support. The present scenario many COVID-19 hospitalized patients rely upon oxygen supply through oxygen cylinders and manual monitoring of oxygen levels in these cylinders has become a challenging task for the healthcare professionals due to overcrowding. If this level monitoring of oxygen cylinders are automated and developed as a mobile App, it would be of great use to the medical field, saving the lives of the patients who are left unmonitored during this pandemic. This proposal is entitled to develop a system to measure oxygen level using a smartphone App which will send instantaneous values about the level of the oxygen inside the cylinder. Pressure sensors and load cell are fitted to the oxygen cylinders, which will measure the oxygen content inside the cylinder in terms of the pressure and weight. The pressure sensors and load cells are connected to the Arduino board and are programmed to display the actual level of oxygen inside the cylinder in terms of numerical values. A beep sound is generated as an indicator to caution the nurses and attendants of the patients regarding the level of the oxygen inside the cylinder when it is only 15% of the total oxygen level in the cylinder in correlation to the pressure and weight. The signal with respect to the level corresponding to the measured pressure and weight of the cylinder is further transmitted to the monitoring station through Global System for Mobile communication (GSM). Graphical display is used at monitoring end to indicate the level of oxygen inside all oxygen cylinders to facilitate actions like 100% full, 80% full, 60% full, 40% full, 20% full which states that either the oxygen cylinder is in good condition, or requires a replacement of empty cylinders with filled ones in correlation to the pressure and weight being sensed by the sensors. The levels of the oxygen monitored inside the cylinder and other related data can also be stored on a cloud storage which will facilitate the retrieval of the status at any point of time, as when required by the physicians and nurses. These results reported, are valued in monitoring the level of the oxygen cylinder remotely connected to the patients, affected by COVID-19, using a smartphone App. This mobile phone App is an effective tool for investigating the oxygen cylinder level used as a life-support system for COVID-19-affected patients. A virtual model of the partial system is developed using TINKER CAD simulation package. In real time, the sensor data analysis with cloud computing will be deployed to detect and track the level of the oxygen cylinders. © 2023 Elsevier Inc. All rights reserved.

4.
Progress in Biomedical Optics and Imaging - Proceedings of SPIE ; 12374, 2023.
Article in English | Scopus | ID: covidwho-20242665

ABSTRACT

During the COVID-19 pandemic, point-of-care genetic testing (POCT) devices were used for on-time and on-site detection of the virus, which helped to prevent and control the spread of the pandemic. Smartphones, which are widely used electronic devices with many functions, have the potential to be used as a molecular diagnostic platform for universal healthcare monitoring. Several integrated diagnostics platforms for the real-time and end-point detection of COVID-19 were developed using the functions of smartphones, such as the operating system, power, sound, camera, data storage, and display. These platforms use the 5V output power of smartphones, which can be amplified to power a micro-capillary electrophoresis system or a thin-film heater, and the CMOS camera of smartphones can capture the color change during a colorimetric loop-mediated isothermal amplification test and detect fluorescence signals. Smartphones can also be used with self-written web-based apps to enable automatic and remote pathogen analysis on POCT platforms. Our lab developed a handheld micro-capillary electrophoresis device for end-point detection of SARS-CoV-2, as well as an integrated smartphone-based genetic analyzer for the qualitative and quantitative colorimetric detection of foodborne pathogens with the help of a custom mobile app. © 2023 SPIE.

5.
ACM Transactions on Computing for Healthcare ; 2(2) (no pagination), 2021.
Article in English | EMBASE | ID: covidwho-20241862

ABSTRACT

To combat the ongoing Covid-19 pandemic, many new ways have been proposed on how to automate the process of finding infected people, also called contact tracing. A special focus was put on preserving the privacy of users. Bluetooth Low Energy as base technology has the most promising properties, so this survey focuses on automated contact tracing techniques using Bluetooth Low Energy. We define multiple classes of methods and identify two major groups: systems that rely on a server for finding new infections and systems that distribute this process. Existing approaches are systematically classified regarding security and privacy criteria.Copyright © 2021 ACM.

6.
Conference on Human Factors in Computing Systems - Proceedings ; 2023.
Article in English | Scopus | ID: covidwho-20241823

ABSTRACT

Mobile Financial Services (MFS) has gained significant popularity during the COVID-19 pandemic, especially among marginalized and low-income, low-literate communities around the world. Such communities have not been traditionally considered while designing MFS services via smartphone apps or USSD services in featurephones. Financial constraints limit such end-users towards basic featurephones, where recent appstore support has made it possible to deploy app-based MFS solutions beyond USSD. This new featurephone platform is a relatively underexplored area in terms of addressing design issues related to aforementioned end-users while developing MFS solutions. Our work addresses this gap by presenting qualitative findings on barriers to technology access focused on MFS solutions in marginal communities. We present a prototype non-USSD, app-based solution on an appstore-supported featurephone platform designed via a human-centered approach. This work has the potential to increase the financial inclusivity of marginalized communities in cashless MFS transactions via low-cost, appstore-enabled featurephones. © 2023 ACM.

7.
Cancer Research, Statistics, and Treatment ; 5(1):163-164, 2022.
Article in English | EMBASE | ID: covidwho-20241500
8.
Medicina Oral Patologia Oral y Cirugia Bucal ; 28(Supplement 1):S16, 2023.
Article in English | EMBASE | ID: covidwho-20241170

ABSTRACT

Introduction: Universities represent important Centers for public health assistance. However, in the context of the COVID- 19 pandemic, most Brazilian universities have suspended their academic activities and outpatient care. Objective(s): Describe how the Teleconsultation Program in Oral Medicine of the School of Dentistry, Brazil, remotely contributes to counseling dentistry on diagnosing oral lesions and providing guidance on treating patients in the North Macro-region of Minas Gerais state. Material(s) and Method(s): Teleconsulting takes place remotely;the professional sends by smartphone, via WhatsApp, the case report, clinical images, and complementary exams, if appropriate. Concerning this, the specialist team analyzes the clinical case and returns it to the professional sender, providing information and suggestions on the oral lesions' diagnostic assessment and clinical management. Result(s): Since the beginning of the program, in 19 months, dentists from 40 municipalities were counseled, which resulted in 287 teleconsultations;from these cases, 103 cases were conducted face-to-face consultations in our Oral Diagnosis Service, and 38 cases were hypothesized as malignant lesions in the oral cavity and had their medical treatment conducted and followed by a multidisciplinary team, when appropriate. Conclusion(s): Teleconsultation Program represents an important tool to strengthen the communication between professionals of public health, improve health work processes, and promote better clinical guidance in Oral Medicine.

9.
Neuromodulation ; 26(4 Supplement):S133, 2023.
Article in English | EMBASE | ID: covidwho-20240103

ABSTRACT

Introduction: Spinal cord and dorsal root ganglion stimulation (SCS and DRG) are standard of care in chronic neuropathic pain. During the COVID-19 pandemic, it was critical to arrange postoperative care. Furthermore, the disparity between travel times and transportation options could influence the decision on seeking healthcare. Lacking financial resources could enhance this issue. Telehealth is usually restricted to video conferences, without interfering with implanted medical devices. Now, there exists a platform for remote programming of those devices. It is accessible via smartphones and allows direct contact between a patient and their doctor. Method(s): We initiated a pilot study for evaluating the performance of remote care in patients with SCS or DRG stimulation. We plan the enrollment of 20 patients, 10 each in the retrospective and the prospective group. Retrospective data has been collected from on-site programmed patients in our outpatient clinic in a large registry study. Prospective data is being collected under the new standard of care in the remotely programmed patients. We assess ten scores and categories to evaluate the status preoperatively, at implantation, and the postoperative course. The postoperative data are assessed in the context of video conferences for remote programming. 12 months after implantation, a final video conference is scheduled. In both groups, the same stimulation systems are used. Result(s): The study is ongoing. In the retrospective group (n=8), the mean duration of the programming appointment including waiting time was 43 minutes and the mean travel time 71 minutes (mean travel distance 106km with corresponding costs). So far, 5 patients have been enrolled for remote programming. Measured with the Telehealth Usability Questionnaire, their overall satisfaction with the system is high. In the Patient Global Impression of Change Scale 6 months after implantation, the retrospective group has a mean of 5 and the prospective group of 6 points. Considering the Visual Analog Scale, there was an improvement in both groups between the baseline and follow-up (in the retrospective group from mean 8 to 5 and in the prospective group from mean 8 to 2). Conclusion(s): The general convenience with the remote programming is high. Compared to the retrospective group, the patients do not experience a lack of efficacy of their stimulation. The use of remote programming offers various advantages, e.g., no travel times nor costs that allow simplified and more frequent programming. Especially in a pandemic or in case of travel limitations it is a very helpful tool. Disclosure: Mareike Mueller, MD: None, Andrea Dreyer: None, Phyllis McPhillips, RN: None, Guilherme Santos Piedade, MD: None, Sebastian Gillner, MD: ABBOTT: Consulting Fee:, Boston Scientific: Consulting Fee:, Philipp Slotty, MD: None, Jan Vesper, MD,PhD: Abbott: Consulting Fee:, Abbott: Fees for Non-CME/CE Services (e.g. advisor):, Medtronic: Fees for Non-CME/CE Services (e.g. advisor):, Boston Scientific: Consulting Fee:, Medtronic: Consulting Fee:, UniQure: Fees for Non-CME/CE Services (e.g. advisor):, ABBOTT: Consulting Fee:, Abbott: Speakers Bureau:, ABBOTT: Consulting Fee: Self, ABBOTT: Speakers Bureau: Self, ABBOTT: Contracted Research: Self, Boston Scientific: Consulting Fee: Self, Boston Scientific: Contracted Research: SelfCopyright © 2023

10.
Maturitas ; 173:57, 2023.
Article in English | EMBASE | ID: covidwho-20240101

ABSTRACT

The structure of the presentation will be 1) Pandemic-Epidemiology 2) General Pandemic-Management 3) HRT and COVID 4) Different spectrum of menopausal symptoms (Europe/Asia) 5) Different risks lead to different HRT. 1) Pandemic-Epidemiology: SARS-COVID-19 has got to be a new disease, China was the first to suffer from the pandemic starting in December 2019 with spread all over the world. Diagnosis, treatment and protective measures have started in Europe in March 2020;up from autumn 2022 in Europe the pandemic changed to endemic, but protective measures still should be continued in risk patients like in hospitals and nursing homes. Rehabilitation will for long-time be an issue like treatment of "Post-" and "Long-COVID". China pursued a zero-COVID-policy until Dec 2022. The sudden stop of almost all measures led to a sharp increase in infections, which shows that the disease will remain a global risk. 2) General Pandemic-Management: Protective measures like vaccination, surgical masks, screening/testing, isolation management, travel/residence history in high-risk regions, education of patients and families had to be the first priority, ahead of other issues such as the management of menopause. 3) HRT and COVID: Already the first prelimary data assessed in Wuhan/China have shown that women with low estradiol-levels had more severe infections with COVID. An analysis of health records of 68,466 COVID-positive patients from 17 countries showed that the fatality risk for women > 50 years receiving HRT was reduced by more than 50% compared to those women not taking HRT (Seeland, 2020). Likewise from a case-control study analyzing the self-reported data of 1.6 million UK menopausal women through the COVID-Symptoms Study Smartphone application (control populations adjusted for age, body mass index, and smoking status) was concluded, that HRT not only can be used, but even can protect from COVID-infections and/or their sequelae (Costeira, 2021). 4) The different spectrum of menopausal symptoms (independent of COVID-infections) comparing data in Europe (showing more vasomotor symptoms) and China (more somatic symptoms) will be presented, including own data. 5) Different risks during HRT consequently lead to different use of HRT, especially more transdermal estrogen combined with progesterone in Europe due to much higher VTE-risk, but more management of the high bleeding-problems in China using individualized (mostly oral) estrogen/progestogen combinations. Copyright © 2023

11.
Progress in Biomedical Optics and Imaging - Proceedings of SPIE ; 12387, 2023.
Article in English | Scopus | ID: covidwho-20238479

ABSTRACT

We report a single-step, room-temperature, 5-10 minute SARS-CoV-2 saliva self-monitoring method that overcomes the limitations of existing approaches through the use of fluorophore-releasing Designer DNA Nanostructures (DDNs) that bind with the multivalent pattern of spike proteins on the exterior intact virions and an inexpensive smartphone-linked, pocket-size fluorimeter, called a "V-Pod” for its resemblance to an Apple AirPod™ headphone case. We characterize the V-Pod fluorimeter performance and the DDN-based assay to demonstrate a clinically relevant detection limit of 104 virus particles/mL for pseudo-typed WT SARS-CoV-2 and 105 virus particles/mL for real pathogenic variants, including Delta, Omicron, and D614g. © 2023 SPIE.

12.
Journal of Psychosomatic Research ; Conference: 10th annual scientific conference of the European Association of Psychosomatic Medicine (EAPM). Wroclaw Poland. 169 (no pagination), 2023.
Article in English | EMBASE | ID: covidwho-20237039

ABSTRACT

Aim: Adolescents have experienced disruption in their daily routines, including changes in health behaviors such as an increased sedentary behavior and increased smartphone usage. The aim of this study was to assess the association of health behaviors with mental health problems. Method(s): Five cross-sectional surveys (February 2021 to May 2022) were performed during the pandemic assessing physical activity, smartphone usage, depressive symptoms (Patient Health Questionaire-9 (PHQ-9)), anxiety symptoms (Generalized Anxiety Disorder Scale 7 (GAD-7)), sleep quality (Insomnia Severity Index 7 (ISI-7)), and stress (Perceived Stress Scale 10 (PSS-10)). In total, N = 7201 adolescents (age: 14-20 years ((MW +/- SD): 16.63 +/- 1.49 years);70.2% female, 18.8% migration background) participated. Result(s): A strong increase in mobile phone usage as well as a decrease in physical activity as compared to pre-pandemic data were observed (p < 0.001). Compared to the lowest smartphone user group (<1 h/d), the adjusted odds ratios (aOR) for depressive symptoms increased with increasing smartphone usage to 1.98 (3-4 h/d), 3.30 (5-6 h/d), 4.96 (7-8 h/d), and 6.79 (>8 h/d). High utilizers (>8 h/d) were also more likely to experience clinically relevant anxiety, insomnia, or stress symptoms (aORs 3.23-5.75) compared to those using the smartphone less than 1 h/d. Conclusion(s): Results highlight the need for measures to promote responsible smartphone usage as well as to increase physical activity, so as to promote mental health in adolescence.Copyright © 2023

13.
Egyptian Journal of Otolaryngology ; 39(1) (no pagination), 2023.
Article in English | EMBASE | ID: covidwho-20233901

ABSTRACT

Background: Telemedicine is a method of providing remote healthcare services and consultations to patients using communication technology. Tele-audiology is a sub-branch of telemedicine. It refers to providing audiology services using telehealth strategies. This study aims to compare the satisfaction of patients who come to the hearing aid center and receive device fitting service and patients who have hearing aid fitting using tele-audiology service. For this purpose, hearing aid users were divided into two groups. The study group consisted of 17 participants (10 male, 7 females;mean age 65.17 +/- 13.88) who continued fitting appointments remotely after the first clinic application, while the control group consisted of 23 participants (10 males, 13 females;mean age 62.17 +/- 18.32) who had all hearing aid fittings performed face-to-face in the clinic. The participant's satisfaction was assessed with The International Outcome Inventory for Hearing Aids Turkiye (IOI-HA-TR) questionnaire because it is practical and can be administered over the phone. Result(s): There were no significant differences in hearing aid satisfaction between those who came to the hearing center and filled out the IOI-HA-TR questionnaire personally and those who completed it through the Remote Care application (p < 0.05). In addition, most of the participants stated that using Remote Care solved their problems (35% very good, 24% good) and they were satisfied with the fitting of their hearing aids with this application (35% good, 29% very good). In addition, 13 out of 17 participants stated that they would pay attention to the "remote fitting" feature when purchasing a new hearing aid (76% very good). Moreover, they would like to continue the fitting using the Remote Care application (65% yes). Conclusion(s): Remote fitting technology via smartphone applications can facilitate the lives of hearing aid users and improve their quality of life in cases of risky conditions such as pandemics, various diseases, and physical limitations.Copyright © 2023, The Author(s).

14.
Medico-Legal Update ; 23(2):4-9, 2023.
Article in English | EMBASE | ID: covidwho-20232505

ABSTRACT

The purpose of research was to study practices, barriers, and solutions of Phetchabun health massage establishments under COVID-19 situation. Non-participant observation, informal interview, in-depth interview, and participation observation were carried out respectively. Purposive sampling was used with 15 health consumer protection officers in charge;11 district level, 2 provincial level, 2 regional level as well as each representative of 11 districts. Results after implementation of "Preparation Guidelines for Health Spa, Health Massage, and Beauty Massage to Promote Health Tourism During COVID-19 Pandemic" were categorized into two sections. Firstly, the practices, barriers, and solutions of government officer performances included preparation for reopening, monitoring of the provider practices, and performance report. Secondly, the provider operations consisted of doing "Self-Assessment of Health Establishment", logging-in webpage before reopening, and practices for clients included screening and report of patients under investigation, establishment monitor, service, and establishment cleaning. In summary, the preparation guidelines were purposed to reopen their business with numerous contents and messages written by official language, it caused establishment providers and practitioners difficultly understood when applying. LINE Application and making calls were easy and accessible methods for their communication to reach current data and to ensure exact information. Various encouragements and having compliments were also considerable to form trust and confidence among them, they also raised their proud.Copyright © 2023, World Informations Syndicate. All rights reserved.

15.
J Telemed Telecare ; : 1357633X21994017, 2021 Feb 18.
Article in English | MEDLINE | ID: covidwho-20236150

ABSTRACT

Introduction: The use of smartphones to provide specialist ophthalmology services is becoming a more commonly used method to support patients with eye pathologies. During the COVID-19 pandemic, demand for telehealth services such as tele-ophthalmology, is increasing rapidly.Methods: In 2019, the agreement between diagnostic tests was investigated by comparing the diagnostic performance for eye posterior pole pathologies of the images obtained by a smartphone coupled to a medical device known as open retinoscope (OR), handled by a nurse and subsequently assessed by an ophthalmologist versus the images obtained by an ophthalmologist using a slit lamp associated to a 76 diopter indirect ophthalmic lens (Volk Super FieldVR ) (SL-IOL) at the outpatient department of a hospital. The OR used in this study worked with a 28 diopter indirect lens.Results: An examination of 151 dilated eyes (79 adult patients, mean age of 66.7 years, 59.5% women) was conducted. Sensitivity was 98.9%, specificity was 89.8%, the positive predictive value was 93.8% and the negative predictive value was 98.2%. The kappa index between both tests was 0.90 (95% CI: 0.83-0.97) in basic diagnosis, 0.81 (95% CI: 0.74-0.89) in syndromic diagnosis (13 categories) and 0.70 (95% CI: 0.62-0.77) in advanced diagnosis (23 categories).Discussion: Images obtained by a nurse using a smartphone coupled to the OR and subsequently assessed by an ophthalmologist showed a high diagnostic performance for eye posterior pole pathologies, which could pave the way for remote ophthalmology systems for this patient group.

16.
Sci Afr ; 21: e01757, 2023 Sep.
Article in English | MEDLINE | ID: covidwho-20245219

ABSTRACT

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus's worldwide pandemic has highlighted the urgent need for reliable, quick, and affordable diagnostic tests for comprehending and controlling the epidemic by tracking the world population. Given how crucial it is to monitor and manage the pandemic, researchers have recently concentrated on creating quick detection techniques. Although PCR is still the preferred clinical diagnostic test, there is a pressing need for substitutes that are sufficiently rapid and cost-effective to provide a diagnosis at the time of use. The creation of a quick and simple POC equipment is necessary for home testing. Our review's goal is to provide an overview of the many methods utilized to identify SARS-CoV 2 in various samples utilizing portable devices, as well as any potential applications for smartphones in epidemiological research and detection. The point of care (POC) employs a range of microfluidic biosensors based on smartphones, including molecular sensors, immunological biosensors, hybrid biosensors, and imaging biosensors. For example, a number of tools have been created for the diagnosis of COVID-19, based on various theories. Integrated portable devices can be created using loop-mediated isothermal amplification, which combines isothermal amplification methods with colorimetric detection. Electrochemical approaches have been regarded as a potential substitute for optical sensing techniques that utilize fluorescence for detection and as being more beneficial to the Minimizing and simplicity of the tools used for detection, together with techniques that can amplify DNA or RNA under constant temperature conditions, without the need for repeated heating and cooling cycles. Many research have used smartphones for virus detection and data visualization, making these techniques more user-friendly and broadly distributed throughout nations. Overall, our research provides a review of different novel, non-invasive, affordable, and efficient methods for identifying COVID-19 contagious infected people and halting the disease's transmission.

17.
Urban Stud ; 60(8): 1427-1447, 2023 Jun.
Article in English | MEDLINE | ID: covidwho-20243927

ABSTRACT

We use data on human mobility obtained from mobile applications to explore the activity patterns in the neighbourhoods of Greater London as they emerged from the first wave of COVID-19 lockdown restrictions during summer 2020 and analyse how the lockdown guidelines have exposed the socio-spatial fragmentation between urban communities. The location data are spatially aggregated to 1 km2 grids and cross-checked against publicly available mobility metrics (e.g. Google COVID-19 Community Report, Apple Mobility Trends Report). They are then linked to geodemographic classifications to compare the average decline of activities in the areas with different sociodemographic characteristics. We found that the activities in the deprived areas dominated by minority groups declined less compared to the Greater London average, leaving those communities more exposed to the virus. Meanwhile, the activity levels declined more in affluent areas dominated by white-collar jobs. Furthermore, due to the closure of non-essential stores, activities declined more in premium shopping destinations and less in suburban high streets.

18.
Sensors (Basel) ; 23(11)2023 May 26.
Article in English | MEDLINE | ID: covidwho-20239338

ABSTRACT

BACKGROUND: The COVID-19 pandemic has accelerated the demand for utilising telehealth as a major mode of healthcare delivery, with increasing interest in the use of tele-platforms for remote patient assessment. In this context, the use of smartphone technology to measure squat performance in people with and without femoroacetabular impingement (FAI) syndrome has not been reported yet. We developed a novel smartphone application, the TelePhysio app, which allows the clinician to remotely connect to the patient's device and measure their squat performance in real time using the smartphone inertial sensors. The aim of this study was to investigate the association and test-retest reliability of the TelePhysio app in measuring postural sway performance during a double-leg (DLS) and single-leg (SLS) squat task. In addition, the study investigated the ability of TelePhysio to detect differences in DLS and SLS performance between people with FAI and without hip pain. METHODS: A total of 30 healthy (nfemales = 12) young adults and 10 adults (nfemales = 2) with diagnosed FAI syndrome participated in the study. Healthy participants performed DLS and SLS on force plates in our laboratory, and remotely in their homes using the TelePhysio smartphone application. Sway measurements were compared using the centre of pressure (CoP) and smartphone inertial sensor data. A total of 10 participants with FAI (nfemales = 2) performed the squat assessments remotely. Four sway measurements in each axis (x, y, and z) were computed from the TelePhysio inertial sensors: (1) average acceleration magnitude from the mean (aam), (2) root-mean-square acceleration (rms), (3) range acceleration (r), and (4) approximate entropy (apen), with lower values indicating that the movement is more regular, repetitive, and predictable. Differences in TelePhysio squat sway data were compared between DLS and SLS, and between healthy and FAI adults, using analysis of variance with significance set at 0.05. RESULTS: The TelePhysio aam measurements on the x- and y-axes had significant large correlations with the CoP measurements (r = 0.56 and r = 0.71, respectively). The TelePhysio aam measurements demonstrated moderate to substantial between-session reliability values of 0.73 (95% CI 0.62-0.81), 0.85 (95% CI 0.79-0.91), and 0.73 (95% CI 0.62-0.82) for aamx, aamy, and aamz, respectively. The DLS of the FAI participants showed significantly lower aam and apen values in the medio-lateral direction compared to the healthy DLS, healthy SLS, and FAI SLS groups (aam = 0.13, 0.19, 0.29, and 0.29, respectively; and apen = 0.33, 0.45, 0.52, and 0.48, respectively). In the anterior-posterior direction, healthy DLS showed significantly greater aam values compared to the healthy SLS, FAI DLS, and FAI SLS groups (1.26, 0.61, 0.68, and 0.35, respectively). CONCLUSIONS: The TelePhysio app is a valid and reliable method of measuring postural control during DLS and SLS tasks. The application is capable of distinguishing performance levels between DLS and SLS tasks, and between healthy and FAI young adults. The DLS task is sufficient to distinguish the level of performance between healthy and FAI adults. This study validates the use of smartphone technology as a tele-assessment clinical tool for remote squat assessment.


Subject(s)
COVID-19 , Femoracetabular Impingement , Young Adult , Humans , Femoracetabular Impingement/diagnosis , Smartphone , Reproducibility of Results , Leg , Pandemics , Pain , Postural Balance
19.
Psychiatry Res ; 326: 115298, 2023 Jun 10.
Article in English | MEDLINE | ID: covidwho-20239296

ABSTRACT

Smartphone use provides a significant amount of screen-time for youth, and there have been growing concerns regarding its impact on their mental health. While time spent in a passive manner on the device is frequently considered deleterious, more active engagement with the phone might be protective for mental health. Recent developments in mobile sensing technology provide a unique opportunity to examine behaviour in a naturalistic manner. The present study sought to investigate, in a sample of 451 individuals (mean age 20.97 years old, 83% female), whether the amount of time spent on the device, an indicator of passive smartphone use, would be associated with worse mental health in youth and whether an active form of smartphone use, namely frequent checking of the device, would be associated with better outcomes. The findings highlight that overall time spent on the smartphone was associated with more pronounced internalizing and externalizing symptoms in youth, while the number of unlocks was associated with fewer internalizing symptoms. For externalizing symptoms, there was also a significant interaction between the two types of smartphone use observed. Using objective measures, our results suggest interventions targeting passive smartphone use may contribute to improving the mental health of youth.

20.
EPJ Data Sci ; 12(1): 17, 2023.
Article in English | MEDLINE | ID: covidwho-20238815

ABSTRACT

Human mobility restriction policies have been widely used to contain the coronavirus disease-19 (COVID-19). However, a critical question is how these policies affect individuals' behavioral and psychological well-being during and after confinement periods. Here, we analyze China's five most stringent city-level lockdowns in 2021, treating them as natural experiments that allow for examining behavioral changes in millions of people through smartphone application use. We made three fundamental observations. First, the use of physical and economic activity-related apps experienced a steep decline, yet apps that provide daily necessities maintained normal usage. Second, apps that fulfilled lower-level human needs, such as working, socializing, information seeking, and entertainment, saw an immediate and substantial increase in screen time. Those that satisfied higher-level needs, such as education, only attracted delayed attention. Third, human behaviors demonstrated resilience as most routines resumed after the lockdowns were lifted. Nonetheless, long-term lifestyle changes were observed, as significant numbers of people chose to continue working and learning online, becoming "digital residents." This study also demonstrates the capability of smartphone screen time analytics in the study of human behaviors. Supplementary Information: The online version contains supplementary material available at 10.1140/epjds/s13688-023-00391-9.

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