Antibiotic Prescribing by Digital Health Care Providers as Compared to Traditional Primary Health Care Providers: Cohort Study Using Register Data.

BACKGROUND:  "Direct-to-consumer (DTC) telemedicine" is increasing worldwide and changing the map of primary health care (PHC). Virtual care has increased in the last decade and with the ongoing COVID-19 pandemic, patients' use of online care has increased even further. In Sweden, online consultations are a part of government-supported health care today, and there are several digital care providers on the Swedish market, which makes it possible to get in touch with a doctor within a few minutes. The fast expansion of this market has raised questions about the quality of primary care provided only in an online setting without any physical appointments. Antibiotic prescribing is a common treatment in PHC. OBJECTIVE:  This study aimed to compare antibiotic prescribing between digital PHC providers (internet-PHC) and traditional physical PHC providers (physical-PHC) and to determine whether prescriptions for specific diagnoses differed between internet-PHC and physical-PHC appointments, adjusted for the effects of attained age at the time of appointment, gender, and time relative to the COVID-19 pandemic. METHODS:  Antibiotic prescribing data based on Anatomical Therapeutic Chemical (ATC) codes were obtained for Region Sörmland residents from January 2020 until March 2021 from the Regional Administrative Office. In total, 160,238 appointments for 68,332 Sörmland residents were included (124,398 physical-PHC and 35,840 internet-PHC appointments). Prescriptions issued by internet-PHC or physical-PHC physicians were considered. Information on the appointment date, staff category serving the patient, ICD-10 (International Statistical Classification of Diseases, Tenth Revision) diagnosis codes, ATC codes of prescribed medicines, and patient-attained age and gender were used. RESULTS:  A total of 160,238 health care appointments were registered, of which 18,433 led to an infection diagnosis. There were large differences in gender and attained age distributions among physical-PHC and internet-PHC appointments. Physical-PHC appointments peaked among patients aged 60-80 years while internet-PHC appointments peaked at 20-30 years of age for both genders. Antibiotics with the ATC codes J01A-J01X were prescribed in 9.3% (11,609/124,398) of physical-PHC appointments as compared with 6.1% (2201/35,840) of internet-PHC appointments. In addition, 61.3% (6412/10,454) of physical-PHC infection appointments resulted in antibiotic prescriptions, as compared with only 25.8% (2057/7979) of internet-PHC appointments. Analyses of the prescribed antibiotics showed that internet-PHC followed regional recommendations for all diagnoses. Physical-PHC also followed the recommendations but used a wider spectrum of antibiotics. The odds ratio of receiving an antibiotic prescription (after adjustments for attained age at the time of appointment, patient gender, and whether the prescription was issued before or during the COVID-19 pandemic) during an internet-PHC appointment was 0.23-0.39 as compared with a physical-PHC appointment. CONCLUSIONS:  Internet-PHC appointments resulted in a significantly lower number of antibiotics prescriptions than physical-PHC appointments, adjusted for the large differences in the characteristics of patients who consult internet-PHC and physical-PHC. Internet-PHC prescribers showed appropriate prescribing according to guidelines.

Trends in Remote Health Care Consumption in Sweden: Comparison Before and During the First Wave of the COVID-19 Pandemic.

BACKGROUND: Remote assessment of respiratory tract infections (RTIs) has been a controversial topic during the fast development of private telemedicine providers in Swedish primary health care. The possibility to unburden the traditional care has been put against a questionable quality of care as well as risks of increased utilization and costs. The COVID-19 pandemic has contributed to a changed management of patient care to decrease viral spread, with an expected shift in contact types from in-person to remote ones. OBJECTIVE: The main aim of this study was to compare health care consumption and type of contacts (in-person or remote) for RTIs before and during the COVID-19 pandemic. The second aim was to study whether the number of follow-up contacts after an index contact for RTIs changed during the study period, and whether the number of follow-up contacts differed if the index contact was in-person or remote. A third aim was to study whether the pattern of follow-up contacts differed depending on whether the index contact was with a traditional or a private telemedicine provider. METHODS: The study design was an observational retrospective analysis with a description of all index contacts and follow-up contacts with physicians in primary care and emergency rooms in a Swedish region (Skåne) for RTIs including patients of all ages and comparison for the same periods in 2018, 2019, and 2020. RESULTS: Compared with 2018 and 2019, there were fewer index contacts for RTIs per 1000 inhabitants in 2020. By contrast, the number of follow-up contacts, both per 1000 inhabitants and per index contact, was higher in 2020. The composition of both index and follow-up contacts changed as the share of remote contacts, in particular for traditional care providers, increased. CONCLUSIONS: During the COVID-19 pandemic in 2020, fewer index contacts for RTIs but more follow-up contacts were conducted, compared with 2018-2019. The share of both index and follow-up contacts that were conducted remotely increased. Further studies are needed to study the reasons behind the increase in remote contacts, and if it will last after the pandemic, and more clinical guidelines for remote assessments of RTI are warranted.

Organisation of primary diabetes care in people with type 2 diabetes in relation to all-cause mortality: A nationwide register-based cohort study.

AIMS: To examine if personnel resources and organisational features in Swedish primary health-care centres (PHCCs) are associated to all-cause mortality (ACM) in people with type 2 diabetes mellitus (T2DM). METHODS: A total of 187,570 people with T2DM registered in the Swedish National Diabetes Register (NDR) during 2013 were included in this nationwide cohort study. Individual NDR data were linked to data from a questionnaire addressing personnel resources and organisational features for 787 (68%) PHCCs as well as to individual data on socio-economic status and comorbidities. Furthermore, data on ACM were obtained and followed up until 30 January 2018. Hierarchical Cox regression analyses were applied. RESULTS: After a median follow-up of 4.2 years, 27,136 (14.5%) participants had died. An association was found between number of whole-time-equivalent (WTE) general practitioner's (GP's) devoted to diabetes care/500 people with T2DM and lower risk of early death (hazard ratio 0.919 [95% confidence interval 0.895-0.945] per additional WTE GP; p = 0.002). No other personnel resources or organisational features were significantly associated with ACM. CONCLUSIONS: This nationwide register-based cohort study suggests that the number of WTE GPs devoted to diabetes care have an impact on the risk of early death in people with T2DM.

Effects of a vocational rehabilitation programme on return to work among sick-listed primary health care patients: a population-based matched, case-control study.

BACKGROUND: To evaluate the efficacy of a multidisciplinary vocational programme in sick-listed, primary health care patients as compared to matched non-programme patients. METHODS: The design was a 3-year prospective population-based, matched case-control study. It was set in a large primary healthcare centre in the city of Eskilstuna, Sweden. The subjects were 943 sickness-certified patients (482 women and 461 men). 170 high-risk patients and a matched control group (n = 340) with similar risk for not returning to work within expected time, based on propensity score was created. The intervention group passed a multidisciplinary medical assessment and a coordinated vocational programme, while the control group received usual care by their general practitioner. Main outcome was sick leave conclusion and the day when it occurred. RESULTS: The follow-up time was subdivided into four periods. During the first two periods, days 1-14 and days 15-112 after baseline, the intervention group had a significantly lower sick leave conclusion rate than the control group (hazard ratios, (HR) 0.32, 95% CI 0.20-0.51, p <  0.0001 and 0.47, 95% CI 0.35-0.64). During the third period, days 113-365, the intervention group had an insignificantly lower conclusion rate (HR 0.70, 95% CI 0.46-1.08, p = 0.10), and during the fourth follow-up period, days 366-1096, the intervention group had an insignificantly higher conclusion rate than the control group (HR 1.16, 95% CI 0.69-1.96, p = 0.58). Across the total follow-up period, the intervention group had a lower conclusion rate than the control group (HR 0.55, 95% CI 0.45-0.66, p <  0.0001). CONCLUSIONS: No positive significant effects of the rehabilitation programme on time to sick leave conclusion were found.

The effect of a short educational intervention in social insurance medicine: A randomized controlled trial.

Aim: To evaluate the effect of an educational intervention in social insurance medicine with Registered Nurses. Design: Randomized controlled trial. Methods: The trial was performed in 20 primary healthcare centres in Central Sweden. The centres were randomly assigned as intervention or control. All Registered Nurses working with telephone nursing at the centres were invited (N = 114); out of these 100 agreed to participate and responded to a questionnaire at the beginning and end of the trial. Fourteen questions in the questionnaire dealt with professional background and were used as exposure variables and were analysed using nominal logistic regression. Results: Registered Nurses in the centres randomly assigned for the intervention experienced handling sick leave questions as less problematic after the intervention than those in the control group. This indicated that the intervention was associated with a positive effect. However, due to the rather small study population, the effect was inconclusive.

Gaining role clarity in working with sick leave questions-Registered Nurses' experiences of an educational intervention.

AIM: To describe how a short educational intervention in social insurance medicine was experienced by Registered Nurses and what changes it brought to their work with sick leave questions in telephone nursing. DESIGN: Qualitative explorative interview study. METHODS: Interviews with 12 purposively sampled Registered Nurses were conducted and analysed using manifest content analysis. RESULTS: The intervention increased Registered Nurses' knowledge of the sick leave process and changed their work habits as they now have more of the skills needed to handle sick leave questions. In this way, they gained role clarity in their work with sick leave questions. The new knowledge included rules and regulations, actors' roles and patients' experiences. Learning from peers, reflecting and having the opportunity to ask questions were also described as increasing their knowledge. The skills following the participation were described as knowing what to say and do and knowing where to turn for support.

Age and sex related self-reported symptoms in a general population across 30 years: Patterns of reporting and secular trend.

OBJECTIVE: To study age and sex specific prevalence of 30 symptoms in random samples from the general population and to analyze possible secular trends across time. STUDY POPULATION: The study was based on data from eight on-going Swedish cohort studies, with baseline investigations performed between 1973 and 2003. Samples were drawn from the general population of the cities of Gothenburg and Eskilstuna, and of Uppsala County. Overall, 20,160 subjects were sampled, 14,470 (71.8%) responded, of whom 12.000 were unique subjects, and 2548 were part of more than one sample. METHODS: The Complaint score sub-scale of the Gothenburg Quality of Life instrument, listing 30 general symptoms was used. Responders were asked to indicate which symptoms they had experienced during the last three months. RESULTS: Women reported on average 7.8 symptoms, and men 5.3 (p<0.0001). Women reported higher prevalence than men for 24 of the 30 symptoms. In multivariate analyses four patterns of prevalence across age were identified in both men and women; increasing prevalence, decreasing, stable and biphasic prevalence. The symptoms in the various pattern groups differed somewhat between men and women. However, symptoms related to strain were prominent among symptoms decreasing with age. Moreover, there were secular trends. Across all symptoms reporting prevalence increased over time in men (p<0.001) as well as in women (p<0.0001). CONCLUSIONS: Women reported higher total symptom prevalence than men. Symptoms related to health generally increased with age, while symptoms related to stress decreased markedly. Significant secular trends across time regarding symptom prevalence were found.

Associations between quality of work features in primary health care and glycaemic control in people with Type 2 diabetes mellitus: A nationwide survey.

AIMS: To describe and analyse the associations between primary health care centres' (PHCCs') quality of work (QOW) and individual HbA1c levels in people with Type 2 diabetes mellitus (T2DM). METHODS: This cross-sectional study invited all 1152 Swedish PHCCs to answer a questionnaire addressing QOW conditions. Clinical, socio-economic and comorbidity data for 230,958 people with T2DM were linked to data on QOW conditions for 846 (73.4%) PHCCs. RESULTS: Of the participants, 56% had controlled (≤52mmol/mol), 31.9% intermediate (53-69mmol/mol), and 12.1% uncontrolled (≥70mmol/mol) HbA1c. An explanatory factor analysis identified seven QOW features. The features having a call-recall system, having individualized treatment plans, PHCCs' results always on the agenda, and having a follow-up strategy combined with taking responsibility of outcomes/results were associated with lower HbA1c levels in the controlled group (all p<0.05). For people with intermediate or uncontrolled HbA1c, having individualized treatment plans was the only QOW feature that was significantly associated with a lower HbA1c level (p<0.05). CONCLUSIONS: This nationwide study adds important knowledge regarding associations between QOW in real life clinical practice and HbA1c levels. PHCCs' QOW may mainly only benefit people with controlled HbA1c and more effective QOW strategies are needed to support people with uncontrolled HbA1c.

Motivation for return to work and actual return to work among people on long-term sick leave due to pain syndrome or mental health conditions.

Purpose: The purpose of this study was to investigate associations between motivation for return to work and actual return to work, or increased employability among people on long-term sick leave.Materials and methods: Data by responses to questionnaires was collected from 227 people on long-term sick leave (mean = 7.9 years) due to pain syndrome or mild to moderate mental health conditions who had participated in a vocational rehabilitation intervention. The participants' motivation for return to work was measured at baseline. At 12-month follow-up, change in the type of reimbursement between baseline and at present was assessed and used to categorise outcomes as: "decreased work and employability", "unchanged", "increased employability", and "increased work". Associations between baseline motivation and return to work outcome were analysed using logistic and multinomial regression models.Results: Motivation for return to work at baseline was associated with return to work or increased employability at 12-month follow-up in the logistic regression model adjusting for potential confounders (OR 2.44, 95% CI 1.25-4.78).Conclusions: The results suggest that motivation for return to work at baseline was associated with actual chances of return to work or increased employability in people on long-term sick leave due to pain syndrome or mild to moderate mental health conditions. Implication for rehabilitationHigh motivation for return to work seems to increase the chances of actual return to work or increased employability in people on sick leave due to pain syndrome or mild to moderate mental health conditions.The potential impact of motivation for return to work is suggested to be highlighted in vocational rehabilitation.Rehabilitation professionals are recommended to recognise and take into consideration the patient's stated motivation for return to work.Rehabilitation professionals should be aware of that the patient's motivation for return to work might have an impact on the outcome of vocational rehabilitation.

Multidisciplinary Intervention and Acceptance and Commitment Therapy for Return-to-Work and Increased Employability among Patients with Mental Illness and/or Chronic Pain: A Randomized Controlled Trial.

BACKGROUND: People on long-term sick leave often have a long-lasting process back to work, where the individuals may be in multiple and recurrent states; i.e., receiving different social security benefits or working, and over time they may shift between these states. The purpose of this study was to evaluate the effects of two vocational rehabilitation programs, compared to a control, on return-to-work (RTW) or increased employability in patients on long-term sick leave due to mental illness and/or chronic pain. METHODS: In this randomized controlled study, 427 women and men were allocated to either (1) multidisciplinary team management, i.e., multidisciplinary assessments and individual rehabilitation management, (2) acceptance and commitment therapy (ACT), or (3) control. A positive outcome was defined as RTW or increased employability. The outcome was considered negative if the (part-time) wage was reduced or ceased, or if there was an indication of decreased employability. The outcome was measured one year after entry in the project and analyzed using binary and multinomial logistic regressions. RESULTS: Participants in the multidisciplinary team group reported having RTW odds ratio (OR) 3.31 (95% CI 1.39⁻7.87) compared to the control group in adjusted models. Participants in the ACT group reported having increased employability OR 3.22 (95% CI 1.13⁻9.15) compared to the control group in adjusted models. CONCLUSIONS: This study of vocational rehabilitation in mainly female patients on long-term sick leave due to mental illness and/or chronic pain suggests that multidisciplinary team assessments and individually adapted rehabilitation interventions increased RTW and employability. Solely receiving the ACT intervention also increased employability.

Resources and organisation in primary health care are associated with HbA1c level: A nationwide study of 230958 people with Type 2 diabetes mellitus.

AIMS: To examine the association between personnel resources and organisational features of primary health care centres (PHCCs) and individual HbA1c level in people with Type 2 diabetes mellitus (T2DM). METHODS: People with T2DM attending 846 PHCCs (n=230958) were included in this cross-sectional study based on PHCC-level data from a questionnaire sent to PHCCs in 2013 and individual-level clinical data from 2013 for people with T2DM reported in the Swedish National Diabetes Register, linked to individual-level data on socio-economic status and comorbidities. Data were analysed using a generalized estimating equations linear regression models. RESULTS: After adjusting for PHCC- and individual-level confounding factors, personnel resources associated with lower individual HbA1c level were mean credits of diabetes-specific education among registered nurses (RNs) (-0.02mmol/mol for each additional credit; P<0.001) and length of regular visits to RNs (-0.19mmol/mol for each additional 15min; P<0.001). Organisational features associated with HbA1c level were having a diabetes team (-0.18mmol/mol; P<0.01) and providing group education (-0.20mmol/mol; P<0.01). CONCLUSIONS: In this large sample, PHCC personnel resources and organisational features were associated with lower HbA1c level in people with T2DM.

Possible causes of experiencing problems with sick leave questions in telephone nursing.

BACKGROUND: Registered nurses at primary health care centres in Sweden receive about 20 million telephone calls annually. Questions related to sick leave occur regularly. Previous studies conclude that those calls often are perceived as problematic. The aim of this study was to explore factors associated with problems regarding sick leave questions in telephone nursing. METHODS: A questionnaire was distributed to all registered nurses (n = 185) working with telephone nursing in 26 Swedish primary health care centres, of whom 114 (61.6%) responded. Based on the results of a Spearman correlation analysis a logistic regression analysis was performed of significant exposure variables on outcome (perceived problems). RESULTS: Significant exposure variables were: experience of telephone nursing, age, being educated in social insurance medicine, and frequency of telephone calls with sick leave questions. Young age was associated with more problems than old age. Those having education in social insurance medicine reported fewer problems than those who had not, and so did those having few telephone calls with sick leave questions as compared with those who had many. CONCLUSIONS: Young age, lack of education in insurance medicine, and high frequency of sick leave questions increased the perceived problem level in telephone nursing.

Resource allocation and organisational features in Swedish primary diabetes care: Changes from 2006 to 2013.

AIMS: To compare the resource allocation and organisational features in Swedish primary diabetes care for patients with type 2 diabetes mellitus (T2DM) between 2006 and 2013. METHODS: Using a repeated cross-sectional study design, questionnaires covering personnel resources and organisational features for patients with T2DM in 2006 and 2013 were sent to all Swedish primary health care centres (PHCCs) during the following year. In total, 684 (74.3%) PHCCs responded in 2006 and 880 (76.4%) in 2013. RESULTS: Compared with 2006, the median list size had decreased in 2013 (p<0.001), whereas the median number of listed patients with T2DM had increased (p<0.001). Time devoted to patients with T2DM and diabetes-specific education levels for registered nurses (RNs) had increased, and more PHCCs had in-house psychologists (all p<0.001). The use of follow-up systems and medical check-ups had increased (all p<0.05). Individual counselling was more often based on patients' needs, while arrangement of group-based education remained low. Patient participation in setting treatment targets mainly remained low. CONCLUSIONS: Even though the diabetes-specific educational level among RNs increased, the arrangement of group-based education and patient participation in setting treatment targets remained low. These results are of concern and should be prioritised as key features in the care of patients with T2DM.

Registered nurses' work with sick leave questions by telephone in primary health care.

AIMS AND OBJECTIVES: To describe registered nurses' work with sick leave questions by telephone. BACKGROUND: In Sweden, when a sick person needs to request a sickness certification, it is common to contact the primary healthcare centre. The main access to primary health care is by telephone, with a registered nurse answering the care seeker's questions, triaging and helping care seekers to the right level of care. Registered nurses' work with sick leave questions has not been studied, except for two qualitative interview studies. DESIGN: A descriptive cross-sectional study. METHODS: A questionnaire with 120 questions was distributed to 185 registered nurses in one county in central Sweden. Descriptive statistics were used for analysis. RESULTS: Response rate was 62% (n = 114). Registered nurses (n = 105) in this study talked weekly to persons on, or at risk, for sick leave. A large part (n = 78) felt they had a role in the care of persons on sick leave, consisting of booking appointments as well as acting as a pilot, advisor, caretaker and coordinator. For 74 of 114 registered nurses, it was problematic to handle the phone calls weekly. Measures were 'often' booking appointments with physicians (n = 67) and 'seldom' providing information on social insurance rules ('never' n = 51). The registered nurses expressed a great need for more education. CONCLUSION: Registered nurses in this study reported having a role in the care of persons on sick leave when handling sick leave questions by telephone. The telephone calls were problematic to handle, and the registered nurses expressed a great need for education and training in social insurance medicine. RELEVANCE TO CLINICAL PRACTICE: There is a need to educate and train registered nurses in social insurance medicine to provide high-quality nursing for patients on or at risk for sick leave.

Changes in Dorsal Neck Muscle Function in Individuals with Chronic Whiplash-Associated Disorders: A Real-Time Ultrasound Case-Control Study.

Impaired neck muscle function leads to disability in individuals with chronic whiplash-associated disorder (WAD), but diagnostic tools are lacking. In this study, deformations and deformation rates were investigated in five dorsal neck muscles during 10 arm elevations by ultrasonography with speckle tracking analyses. Forty individuals with chronic WAD (28 women and 12 men, mean age = 37 y) and 40 healthy controls matched for age and sex were included. The WAD group had higher deformation rates in the multifidus muscle during the first (p < 0.04) and 10th (only women, p < 0.01) arm elevations compared with the control group. Linear relationships between the neck muscles for deformation rate (controls: R(2) = 0.24-0.82, WAD: R(2) = 0.05-0.74) and deformation of the deepest muscles (controls: R(2) = 0.61-0.32, WAD: R(2) = 0.15-0.01) were stronger for women in the control group versus women with WAD, indicating there is altered interplay between dorsal neck muscles in chronic WAD.

Novel insights into the interplay between ventral neck muscles in individuals with whiplash-associated disorders.

Chronic whiplash-associated disorder (WAD) is common after whiplash injury, with considerable personal, social, and economic burden. Despite decades of research, factors responsible for continuing pain and disability are largely unknown, and diagnostic tools are lacking. Here, we report a novel model of mechanical ventral neck muscle function recorded from non-invasive, real-time, ultrasound measurements. We calculated the deformation area and deformation rate in 23 individuals with persistent WAD and compared them to 23 sex- and age-matched controls. Multivariate statistics were used to analyse interactions between ventral neck muscles, revealing different interplay between muscles in individuals with WAD and healthy controls. Although the cause and effect relation cannot be established from this data, for the first time, we reveal a novel method capable of detecting different neck muscle interplay in people with WAD. This non-invasive method stands to make a major breakthrough in the assessment and diagnosis of people following a whiplash trauma.

The effect of 3 different exercise approaches on neck muscle endurance, kinesiophobia, exercise compliance, and patient satisfaction in chronic whiplash.

OBJECTIVE: The purpose of this study was to compare the effects of 3 different exercise approaches on neck muscle endurance (NME), kinesiophobia, exercise compliance, and patient satisfaction in patients with chronic whiplash. METHODS: This prospective randomized clinical trial included 216 individuals with chronic whiplash. Participants were randomized to 1 of 3 exercise interventions: neck-specific exercise (NSE), NSE combined with a behavioral approach (NSEB), or prescribed physical activity (PPA). Measures of ventral and dorsal NME (endurance time in seconds), perceived pain after NME testing, kinesiophobia, exercise compliance, and patient satisfaction were recorded at baseline and at the 3- and 6-month follow-ups. RESULTS: Compared with individuals in the prescribed physical activity group, participants in the NSE and NSEB groups exhibited greater gains in dorsal NME (P = .003), greater reductions in pain after NME testing (P = .03), and more satisfaction with treatment (P < .001). Kinesiophobia and exercise compliance did not significantly differ between groups (P > .07). CONCLUSION: Among patients with chronic whiplash, a neck-specific exercise intervention (with or without a behavioral approach) appears to improve NME. Participants were more satisfied with intervention including neck-specific exercises than with the prescription of general exercise.

General practitioners' perceptions of working with the certification of sickness absences following changes in the Swedish social security system: a qualitative focus-group study.

BACKGROUND: Many physicians in Sweden, as well as in other countries, find the matter of certification of sickness absence (COSA) particularly burdensome. The issuing of COSAs has also been perceived as a work-environment problem among physicians. Among general practitioners (GPs) are the highest proportion of physicians in Sweden who experience difficulties with COSA. Swedish authorities have created several initiatives, by changing the social security system, to improve the rehabilitation of people who are ill and decrease the number of days of sick leave used. The aim of this study was to describe how GPs in Sweden perceive their work with COSA after these changes. METHODS: A descriptive design with a qualitative, inductive focus-group discussion (FGD) approach was used. RESULTS: Four categories emerged from the analysis of FGDs with GPs in Sweden: 1) Physicians' difficulties in their professional role; 2) Collaboration with other professionals facilitates the COSA; 3) Physicians' approach in relation to the patient; 4) An easier COSA process. CONCLUSIONS: Swedish GPs still perceived COSA to be a burdensome task. However, system changes in recent years have facilitated work related to COSA. Cooperation with other professionals on COSA was perceived positively.

Altered ventral neck muscle deformation for individuals with whiplash associated disorder compared to healthy controls - a case-control ultrasound study.

Previous studies have shown altered neck muscle function in individuals with chronic whiplash associated disorder (WAD). However, we lack real-time investigations with non-invasive methods that can distinguish between the different ventral neck muscle layers. This study investigated deformations and deformation rates in the sternocleidomastoid (SCM), longus capitis (Lcap), and longus colli (Lco) muscles with real-time ultrasonography. Twenty-six individuals with WAD were compared with 26 controls, matched for age and sex. Ultrasound imaging of the SCM, Lcap, and Lco were recorded during 10 repetitive arm elevations. The first and tenth arm elevations were post-process analyzed with speckle tracking. There were few significant differences in the deformations or deformation rates in the SCM, Lcap, and Lco between the WAD and control group. In controls, deformations and deformation rates showed linear positive relationships between SCM/Lcap, SCM/Lco, and Lcap/Lco which increased from the first arm elevation (R(2) = 0.14-0.70); to the tenth arm elevation (R(2) = 0.51-0.71). The WAD group showed similar or weaker linear relationship (R(2) < 0.19) during the tenth compared to the first (R(2) < 0.44) arm elevation except for deformations in Lcap/Lco (R(2) = 0.13-0.57). This result indicated that deformations and deformation rates in one muscle were correlated by similar deformations and deformation rates in other neck muscles in the control group, but this interplay between muscles was not found in the WAD group.

Predicting return to work among sickness-certified patients in general practice: properties of two assessment tools.

AIM: The purpose was to analyse the properties of two models for the assessment of return to work after sickness certification, a manual one based on clinical judgement including non-measurable information ('gut feeling'), and a computer-based one. STUDY POPULATION: All subjects aged 18 to 63 years, sickness-certified at a primary health care centre in Sweden during 8 months (n = 943), and followed up for 3 years. METHODS: Baseline information included age, sex, occupational status, sickness certification diagnosis, full-time or part-time current sick-leave, and sick-leave days during the past year. Follow-up information included first and last day of each occurring sick spell. In the manual model all subjects were classified, based on baseline information and gut feeling, into a high-risk (n = 447) or a low-risk group (n = 496) regarding not returning to work when the present certificate expired. It was evaluated with a Cox's analysis, including time and return to work as dependent variables and risk group assignment as the independent variable, while in the computer-based model the baseline variables were entered as independent variables. RESULTS: Concordance between actual return to work and return to work predicted by the analysis model was 73%-76% during the first 28-180 days in the manual model, and approximately 10% units higher in the computer-based model. Based on the latter, three nomograms were constructed providing detailed information on the probability of return to work. CONCLUSION: The computer-based model had a higher precision and gave more detailed information than the manual model.