Healthcare in Sweden

Background Online symptom checkers are increasingly used for diagnostic support and triage. However, evidence on their performance and evaluations with real-world data remains limited. Objective The aim of this study was to evaluate the performance of a digital symptom checker using clinical vignettes derived from real-world cases that had previously been incorrectly triaged. Methods A patient-facing, rule-based digital symptom checker used in Swedish primary care was assessed in this study. Vignettes were constructed from cases reported to the Swedish Health and Social Care Inspectorate due to erroneous telephone triage. We hypothesized that the digital symptom checker could provide appropriate triage for these cases. Seven physicians independently simulated patients by entering symptoms in the symptom checker based on each vignette. Triage outcomes were assessed against the Swedish National Triage Guidelines (RGS), evaluating the accuracy and the safety of the triage recommendation. Results A total of 69 unique vignettes yielded 483 individual trials. After excluding 93 trials due to significant deviations from the original vignette description (adding or omitting symptoms), 390 trials were included in the primary analysis. The symptom checker achieved 91% accuracy (95% CI 88–94%) and 94% safety (95% CI 91–96%). Conclusions The symptom checker demonstrated high accuracy and safety when triaging a subset of vignettes based on real-world cases that had been previously erroneously triaged. This study also highlights the difficulties of using vignettes when evaluating symptom checkers. To our knowledge, this is the first study to evaluate such systems using vignettes based on actual patient cases with known triage errors.

BackgroundThe study aimed to explore which sociodemographic, health-related, and work-related factors were associated with the number of sickness absence days during 18 months among employees on sickness absence due to common mental disorders.MethodsA longitudinal study with participants from a cluster-randomized controlled trial was conducted. Participants from both intervention and control groups were treated as one cohort. Factors included in the analysis were sociodemographic, health-related, and work-related variables collected through questionnaires at baseline. The outcome was cumulative net sickness absence days for sickness absence spells exceeding 14 days and was collected from a national register. Data was analyzed using generalized estimating equations.ResultsThe sample consisted of 197 employees. Lower-rated work ability in relation to physical demands ([exp (B) 1.19], 95% CI 1.02–1.40) and higher-rated job demands ([exp (B) 1.28], 95% CI 1.01–1.61), were associated with increased number of sickness absence days during the 18 months follow-up. Higher certainty of return to work within three months ([exp (B) 0.63], 95% CI 0.48–0.83) was associated with a decreased number of sickness absence days during the 18 months follow-up.ConclusionsOur study suggests that work-related factors, i.e., high job demands and impaired work ability, are associated with an increased number of days on sickness absence. Additionally, the certainty of returning to work within three months is associated with fewer days on sickness absence. The results highlight the importance of addressing specific workplace factors when designing interventions aimed at decreasing sickness absence for employees on sickness absence due to CMDs. The results could be used to inform a dialogue between healthcare personnel and employees on sickness absence due to CMDs, and to serve as basis for a structured inventory to assist healthcare personnel in addressing workplace factors.

Studies on antihypertensive treatment are important, as hypertension remains the major risk factor for cardiovascular morbidity and premature death. However, antihypertensive medicines are also used for other conditions, and the use of these medicines as a proxy for a diagnosis of hypertension might lead to misclassification in pharmacoepidemiological studies. This study aimed to investigate to what extent people dispensed antihypertensive medicines have been diagnosed with hypertension. Cross-sectional study with data covering all healthcare and all dispensed prescriptions of antihypertensive medicines 2019 and diagnoses recorded 2015-2019 from the Stockholm Region, Sweden. Multinomial logistic regressions were used to assess the probability of having hypertension concerning age, sex, and antihypertensive drug class. A total of 386 860 individuals were included, 49% men, 12% incident users, and 80% of all had a recorded diagnosis of hypertension. In 73% of incident users, only one antihypertensive drug class was dispensed, as compared to 36% of prevalent users. A total of 38% of incident users and 9% of prevalent users had none of the diagnoses selected for the study recorded in any health record during 5 years. Prevalent and older users over the age of 65 from high (50%-79%) to very high (80% and more) probability of a recorded diagnosis of hypertension. Patients on antiadrenergic agents, high-ceiling diuretics, aldosterone antagonists, or beta receptor blockers had a lower probability of having a recorded diagnosis of hypertension than patients dispensed angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, or calcium channel blockers. Most patients dispensed antihypertensive medicines have a diagnosis of hypertension. However, caution is needed using data on dispensed medicines to classify incident antihypertensive users and younger patients as having a diagnosis of hypertension.

Background There has been a notable decrease in antibiotic prescribing in the last thirty years in Sweden. Little is known about factors influencing antibiotic prescribing over several years. Objective To compare primary care physicians who, over time, reduced their antibiotic prescribing for respiratory tract infections with those who remained either high or low prescribers regarding potentially influencing factors. Design and setting A register-based study including all RTI visits in primary care in Region Kronoberg, Sweden 2006–2014. The data were divided into three 3-year periods. Subjects The data comprised all physicians who had diagnosed at least one RTI for each of the three-year periods. The antibiotic prescribing rate adjusted for the patients’ sex and age group was calculated for each physician and period, and based on the change between the first and the third period, the physicians were divided into three prescriber groups: The High Prescribing Group, the Decreasing Prescribing Group, and the Low Prescribing Group. Main outcome measures For the three prescriber groups, we compared factors influencing antibiotic prescribing such as the characteristics of the physicians, their use of point-of-care tests, their choice of diagnoses, and whether the patients returned and received antibiotics. Results The High Prescribing Group ordered more point-of-care tests, registered more potential bacterial diagnoses, prescribed antibiotics at lower C-reactive protein levels, and prescribed antibiotics more often despite negative group A Streptococci test than in the Low Prescribing Group. The Decreasing Prescribing Group was between the High Prescribing Group and the Low Prescribing Group regarding these variables. The lower prescription rate in the Low Prescribing Group did not result in more return visits or new antibiotic prescriptions within 30 days. Conclusion Point-of-care testing and its interpretation differed between the prescriber groups. Focus on interpreting point-of-care test results could be a way forward in antibiotic stewardship.

The total burden of infections after transplantation has not been compared in detail between recipients of simultaneous pancreas-kidney transplantation (SPK) and kidney transplantation alone (KTA). We compared infection-related hospitalizations and bacteremias after transplantation during 1- and 5-year follow-up among 162 patients undergoing SPK. The control group consisted of 153 type 1 diabetics undergoing KTA with the inclusion criteria of donor and recipient age < 60, and BMI < 30. During the first year, SPK patients had more infection-related hospitalizations (0.54 vs. 0.31 PPY, IRR 1.76, p = <0.001) and bacteremias (0.11 vs. 0.01 PPY, IRR 17.12, p = <0.001) compared to KTA patients. The first infection-related hospitalizations and bacteremias occurred later during follow-up in KTA patients. SPK was an independent risk factor for infection-related hospitalization and bacteremia during the first year after transplantation, but not during the 5-year follow-up. Patient survival did not differ between groups, however, KTA patients had inferior kidney graft survival. SPK patients are at greater risk for infection-related hospitalizations and bacteremias during the first year after transplantation compared to KTA patients, however, at the end of the follow-up the risk of infection was similar between groups.

Background In the prospective follow-up studies participants are normally contacted during the follow-up. Even though the idea is not to intervene, the studies conducted during follow-up may affect the target population. Our hypotheses were that the participation to prospective Northern Finland Birth Cohort 1986 study (NFBC 1986) increases the use of mental health services and reduces the suicidal behavior due to intervention effect. Methods The NFBC 1986 covers the people born with expected date of birth between July 1985 and June 1986 in the former two northernmost provinces in Finland (N = 9396). The participants of the NFBC 1986 have been followed since antenatal time with follow-ups including clinical examinations. The comparison cohort comprises of all the people born in the same provinces in 1987 (N = 8959). Cumulative incidences were calculated to both cohorts and the difference was estimated with chi-square test. The relative risk (RR) with 95% confidence interval (CI) was calculated by sex. Results In males, the difference between NFBC 1986 and comparison cohort in mental disorders or in suicidal behavior were not detected. In females, decreased risk in the NFBC 1986 was found for any mental disorder (RR: 0.89 (CI: 0.81–0.98), p = 0.014) and in suicidal attempts (0.67 (0.49–0.92), p = 0.011). Conclusions Our hypothesis of increased mental disorders in the NFBC 1986 was not supported by the results. Second hypothesis was supported partly as female participants of the NFBC 1986 had less suicide attempts than comparison cohort. The intervention effect of participation in epidemiological follow-up study has been under-examined, and the results need to be replicated.

BackgroundElectrical cardioversion (ECV) is routinely used to restore sinus rhythm in patients with symptomatic atrial fibrillation. The European guidelines have been updated in recent years. Current information on differences in the risk for stroke after acute versus elective ECV is lacking.Methods And ResultsAll patients with a first‐time acute or elective ECV in the Stockholm regional health care data warehouse from 2011 to 2018 were included. Cox regression analyses were performed evaluating ischemic or unspecified stroke within 30 days after ECV with adjustments for the CHA2DS2‐VASc score, medical treatment, and year of inclusion. The study included 9139 patients, 3094 after acute and 6045 after elective ECV. The mean age was 65.9±11.3 years, 69.5% were men, and the mean CHA2DS2‐VASc score was 2.4±1.7. Before the intervention, 49.6% of patients with an acute ECV and 96.4% of those with an elective ECV had claimed an oral anticoagulant prescription. Ischemic or unspecified stroke occurred in 26 (0.28%) patients within 30 days. The unadjusted risk was higher after acute compared with elective ECV (hazard ratio [HR], 2.29; 95% CI, 1.06–4.96), whereas there was no difference after multivariable adjustments (adjusted HR, 0.99; 95% CI, 0.36–2.72). Both non–vitamin K oral anticoagulants (adjusted HR, 0.28; 95% CI, 0.08–0.98) and warfarin (adjusted HR, 0.17; 95% CI, 0.05–0.53) were associated with a lower risk for stroke compared with no anticoagulation.ConclusionsAcute ECV was associated with a higher unadjusted risk for stroke than elective ECV, but the risk was similar after adjustment for anticoagulant treatment. This study indicates the importance of anticoagulation before ECV according to recent European guidelines.

PurposeRadiological assessment of primary brain neoplasms, both high (HGG) and low grade tumors (LGG), based on contrast-enhancement alone can be inaccurate. We evaluated the radiological value of amide proton transfer weighted (APTw) MRI as an imaging complement for pre-surgical radiological diagnosis of brain tumors.MethodsTwenty-six patients were evaluated prospectively; (22 males, 4 females, mean age 55 years, range 26–76 years) underwent MRI at 3T using T1-MPRAGE pre- and post-contrast administration, conventional T2w, FLAIR, and APTw imaging pre-surgically for suspected primary/secondary brain tumor. Assessment of the additional value of APTw imaging compared to conventional MRI for correct pre-surgical brain tumor diagnosis. The initial radiological pre-operative diagnosis was based on the conventional contrast-enhanced MR images. The range, minimum, maximum, and mean APTw signals were evaluated.Conventional normality testing was performed; with boxplots/outliers/skewness/kurtosis and a Shapiro–Wilk’s test. Mann-Whitney U for analysis of significance for mean/max/min and range APTw signal. A logistic regression model was constructed for mean, max, range and Receiver Operating Characteristic (ROC) curves calculated for individual and combined APTw signalsResultsConventional radiological diagnosis prior to surgery/biopsy was HGG (8 patients), LGG (12 patients), and metastasis (6 patients). Using the mean and maximum: APTw signal would have changed the pre-operative evaluation the diagnosis in 8 of 22 patients (two LGGs excluded, two METs excluded). Using a cut off value of >2.0% for mean APTw signal integral, 4 of the 12 radiologically suspected LGG would have been diagnosed as high grade glioma, which was confirmed by histopathological diagnosis. APTw mean of >2.0% and max >2.48% outperformed four separate clinical radiological assessments of tumor type, P-values = .004 and = .002, respectively.ConclusionsUsing APTw-images as part of the daily clinical pre-operative radiological evaluation may improve diagnostic precision in differentiating LGGs from HGGs, with potential improvement of patient management and treatment.

Background In primary care, the diagnosis of pneumonia is often based on history and clinical examination alone. However, a previous study showed that the general practitioner’s degree of suspicion correlates well with findings on chest X-ray, when the C-reactive protein (CRP) value is known. Objectives The present study aimed to investigate to what extent the physician’s degree of suspicion is affected by the CRP level when community-acquired pneumonia is suspected in primary care. Methods A prospective observational study was conducted at five primary health care centres in Sweden between October 2015 and December 2017. Adult patients (n = 266) consulting their health care centre with symptoms of lower respiratory tract infection, where the physician suspected pneumonia, were included consecutively. Anamnestic information and findings from clinical examination were documented in a case report form. All patients were tested for CRP. The physicians rated their degree of suspicion as ‘unsure,’ ‘quite sure,’ and ‘sure’ before and after the CRP result. Results The degree of suspicion of pneumonia changed in 69% of the cases; most often to a lower degree (40%). In 28% of the cases, there was no longer any suspicion of pneumonia after CRP. Conclusion Our results indicate that CRP testing highly influences the physician’s degree of suspicion of pneumonia in primary care and that it seems to be of most value when not sure of the diagnosis.