Autoimmune comorbidity in type 1 diabetes and its association with metabolic control and mortality risk in young people: a population-based study

AIMS/HYPOTHESIS

This register-based study aimed to describe autoimmune comorbidity in children and young adults from type 1 diabetes onset, and to investigate whether such comorbidity was associated with a difference in HbA1c or mortality risk compared with children/young adults with type 1 diabetes without autoimmune comorbidity.

METHODS

A total of 15,188 individuals from the Swedish National Diabetes Register, registered with type 1 diabetes before 18 years of age between 2000 and 2019, were included. Five randomly selected control individuals from the Swedish population (Statistics Sweden) were matched to each individual with type 1 diabetes (n=74,210 [346 individuals with type 1 diabetes were not found in the Statistics Sweden register at the date of type 1 diabetes diagnosis, so could not be matched to control individuals]). The National Patient Register was used to attain ICD-10 codes on autoimmune diseases and the Cause of Death Register was used to identify deceased individuals.

RESULTS

In the total type 1 diabetes cohort, mean±SD age at onset of type 1 diabetes was 9.5±4.4 years and mean disease duration at end of follow-up was 8.8±5.7 years. Of the individuals with type 1 diabetes, 19.2% were diagnosed with at least one autoimmune disease vs 4.0% of the control group. The HRs for comorbidities within 19 years from onset of type 1 diabetes were 11.6 (95% CI 10.6, 12.6) for coeliac disease, 10.6 (95% CI 9.6, 11.8) for thyroid disease, 1.3 (95% CI 1.1, 1.6) for psoriasis, 4.1 (95% CI 3.2, 5.3) for vitiligo, 1.7 (95% CI 1.4, 2.2) for rheumatic joint disease, 1.0 (95% CI 0.8, 1.3) for inflammatory bowel disease, 1.0 (95% CI 0.7, 1.2) for systemic connective tissue disorder, 1.4 (95% CI 1.1, 1.9) for uveitis, 18.3 (95% CI 8.4, 40.0) for Addison's disease, 1.8 (95% CI 0.9, 3.6) for multiple sclerosis, 3.7 (95% CI 1.6, 8.7) for inflammatory liver disease and 19.6 (95% CI 4.2, 92.3) for atrophic gastritis. Autoimmune disease in addition to type 1 diabetes had no statistically significant effect on HbA1c or mortality risk.

CONCLUSIONS/INTERPRETATION

To our knowledge, this is the first comprehensive study where young individuals with type 1 diabetes were followed regarding development of a wide spectrum of autoimmune diseases, from onset of type 1 diabetes. In this nationwide and population-based study, there was already a high prevalence of autoimmune diseases in childhood, especially coeliac and thyroid disease. The presence of autoimmune comorbidity did not have a statistically significant effect on metabolic control or mortality risk.

Validation of the Swedish Quality Register for Ear Surgery - SwedEar

BACKGROUND

The Swedish Quality Register for Ear Surgery (SwedEar) is a national register monitoring surgical procedures and outcomes of ear surgery to facilitate quality improvement. The value of the register is dependent on the quality of its data. SwedEar has never been validated regarding data quality or missing entries. Therefor, the purpose of this study was to assess coverage, completeness and response rate in the register and validate the physicians' reported data accuracy.

METHODS

In this validation study, the completeness, response rate and missing registrations were analysed. Data in SwedEar were compared with the yearly collected statistics of otosurgical procedures in The Swedish Otosurgical Society and the comparison of rates between groups was calculated with Fisher's exact test. Validation of registered data accuracy was performed on every 20th registered case during a five-year period. Data were reabstracted from medical records and compared with the original registration. Interrater agreement, reliability measures, Cohen's kappa, Gwet's AC1 and positive predictive value were calculated.

RESULTS

SwedEar has a coverage of 100%. The completeness of registered cases was 84% and the response rate was 74%. The validation of data accuracy assessed 13 530 variables, including audiograms. Less than 3% of incorrect or missing variables were identified. For most of the pre- and postoperative variables the Kappa and Gwet´s AC1 results show an almost perfect agreement (> 0.80). For audiogram data the ICC shows an excellent reliability (> 0.9) for all but one value.

CONCLUSION

This validation shows that SwedEar has excellent coverage, high completeness, and that the data in the register have almost perfect reliability. The data are suitable for both clinical and research purposes. Further efforts to improve completeness are warranted.

Multiple manifestations of uncontrolled asthma increase the risk of severe COVID-19

OBJECTIVE

Asthma control is of importance when assessing the risk of severe outcomes of COVID-19. The aim of this study was to explore associations of clinical characteristics and the effect of multiple manifestations of uncontrolled asthma with severe COVID-19.

METHODS

In 2014-2020, adult patients with uncontrolled asthma, defined as Asthma Control Test (ACT) ≤19 were identified in the Swedish National Airway Register (SNAR) (n = 24533). The SNAR database, including clinical data, was linked with national registers to identify patients with severe COVID-19 (n = 221). The effect of multiple manifestations of uncontrolled asthma was based on: 1) ACT ≤15, 2) frequent exacerbations and 3) previous asthma inpatient/secondary care and evaluated stepwise. Poisson regression analyses were conducted with severe COVID-19 as the dependent variable.

RESULTS

In this cohort with uncontrolled asthma, obesity was the strongest independent risk factor for severe COVID-19 in both sexes, but even greater in men. Multiple manifestations of uncontrolled asthma were more common among those with severe COVID-19 vs. without: one, 45.7 vs. 42.3%, two, 18.1 vs. 9.1% and three, 5.0 vs. 2.1%. The risk ratio (RR) of severe COVID-19 increased with an increasing number of manifestations of uncontrolled asthma: one, RR 1.49 (95% CI 1.09-2.02), two, RR 2.42 (95% CI 1.64-3.57) and three, RR 2.96 (95% CI 1.57-5.60), when adjusted for sex, age, and BMI.

CONCLUSIONS

It is important to consider the effect of multiple manifestations of uncontrolled asthma and obesity when assessing patients with COVID-19, as this increases the risk of severe outcomes substantially.

Clinical outcome and prognostic factors in elderly traumatic brain injury patients receiving neurointensive care

Background

The probability of favorable outcome after traumatic brain injury (TBI) decreases with age. Elderly, ≥ 60 years, are an increasing part of our population. Recent studies have shown an increase of favorable outcome in elderly over time. However, the optimal patient selection and neurointensive care (NIC) treatments may differ in the elderly and the young. The aims of this study were to examine outcome in a larger group of elderly TBI patients receiving NIC and to identify demographic and treatment related prognostic factors.

Methods

Patients with TBI ≥ 60 years receiving NIC at our department between 2008 and 2014 were included. Demographics, co-morbidity, admission characteristics, and type of treatments were collected. Clinical outcome at around 6 months was assessed. Potential prognostic factors were included in univariate and multivariate regression analysis with favorable outcome as dependent variable.

Results

Two hundred twenty patients with mean age 70 years (median 69; range 60–87) were studied. Overall, favorable outcome was 46% (Extended Glasgow Outcome Scale (GOSE) 5–8), unfavorable outcome 27% (GOSE 2–4), and mortality 27% (GOSE 1). Significant independent negative prognostic variables were high age (p < 0.05), multiple injuries (p < 0.05), GCS M ≤ 3 on admission (p < 0.05), and mechanical ventilation (p < 0.001).

Conclusions

Overall, the elderly TBI patients > 60 years receiving modern NIC in this study had a fair chance of favorable outcome without large risks for severe deficits and vegetative state, also in patients over 75 years of age. High age, multiple injuries, GCS M ≤ 3 on admission, and mechanical ventilation proved to be independent negative prognostic factors. The results underline that a selected group of elderly with TBI should have access to NIC.

Validation of data quality in the Swedish National Register for Breast Cancer

Background

The National Breast Cancer Register (NBCR) of Sweden was launched in 2008 and is used for quality assurance, benchmarking, and research. Its three reporting forms encompass Notification, Adjuvant therapy and Follow-up. Target levels are set by national and international guidelines. This national validation assessed data quality of the register.

Methods

Data recorded through the Notification form were evaluated for completeness, timeliness, comparability and validity. Completeness was assessed by cross-linkage to the Swedish Cancer Register (SCR). Comparability was analyzed by comparing registration routines in NBCR with national and international guidelines. Timeliness was defined as the difference between the earliest date of diagnosis and the reporting date to NBCR. Validity was assessed by re-abstraction of medical chart data for 800 randomly selected patients diagnosed in 2013.

Results

The completeness of the NBCR was high with a coverage across regions and years (2010–2014) of 99.9%. Of all incident cases reported to the NBCR in 2013 (N = 8654), 98.5% were included within 12 months and differences between health regions were essentially negligible. Coding procedures followed guidelines and were uniformly adhered to. The proportion of missing values was < 5% for most variables and reported information generally had high exact agreement (> 90%).

Conclusions

Completeness of data, comparability and agreement in the NBCR was high. For clinical quality purposes and benchmarking, improved timeliness is warranted. Assessment of validity has resulted in a thorough review of all variables included in the Notification form with clarifications and revision of selected variables.

Quality of life in Swedish children receiving grommets - An analysis of pre- and postoperative results based on a national quality register

BACKGROUND

Otitis media with effusion (OME) and recurrent otitis media (rAOM) are two common diagnoses in childhood, both of which are treated with grommets, or ventilation tubes. It is known that affected children have a worse quality of life (QoL), and various questionnaires have been used to evaluate this. The national Swedish quality register for grommet insertions contains some QoL questions that have hitherto never been analysed.

METHODS

Data from 2010 to 2016 was extracted from the register and analysed with regards to QoL questions, reasons for surgery, hearing levels and number of AOM episodes.

RESULTS

Preoperative QoL data was available for 3835 children. Before surgery, most parents felt that the QoL of their children was negatively affected by the ear disease. Parents of children with OME were more likely to suspect that their child had a hearing loss (ORs 10.1 and 28.2 for suspecting a mild and severe hearing loss, respectively), but less likely to find that the ear disease affected the child's general wellbeing than did parents of children with rAOM (ORs 0.54 and 0.33 for somewhat and much affected, respectively). Many children underwent surgery despite not fulfilling the criteria for surgery as stipulated in the national guidelines. Those who did fulfil criteria, however, had a more severely affected QoL. A significant improvement was seen in individual QoL scores after surgery (p < 0.001). The degree of postoperative improvement in pure tone average correlated with the improvement in QoL (p < 0.001).

CONCLUSION

This is the first time that the QoL aspect has been analysed in the Swedish grommet register. Though the validity of the questions has not been proven, they provide valuable information. The relevance of the surgical criteria in national guidelines is illustrated by their correlation with the QoL questions, particularly for OME, and the postoperative improvement in QoL suggests parents find that their children benefit from surgery.

Management Practices Promoting Sustained Implementation of the Quality Register Senior Alert for Older Adults in Municipal Care in Sweden

Background:

Senior Alert is a national quality register aimed at supporting a standardized, structured, and systematic preventive care process for adults aged 65 and over in the areas malnutrition, pressure ulcers, falls, problems with oral health and bladder dysfunction. Therefore, the quality register is particularly suitable for older adults with multimorbidity.

Aim:

The aim was to describe management practices that contributed to the sustained implementation of the quality register Senior Alert in municipal elderly care in Sweden.

Methods:

The design of this pilot study was descriptive and inductive. The sample of n = 12 included managers (n = 7) and care staff (n = 5) at seven municipal care homes for older adults in Sweden. The study was performed between April 2014 and June 2014 using two methods: Individual interviews and nonparticipant unstructured observations. Data were analyzed using qualitative content analysis.

Results:

The analysis led to the following generic categories: leading teamwork, leading a preventive care process and leading a supportive organizational structure, and to one main category: management promoting learning and quality improvement.

Conclusion:

To be sustainable, Senior Alert implementations in municipal elderly care need management. Management, by leading teamwork, a preventive care process and a supportive organizational structure, is essential for achieving learning and quality improvement.

Patient-reported lower urinary tract symptoms after hysterectomy or hysteroscopy: a study from the Swedish Quality Register for Gynecological Surgery

Introduction and hypothesis

Hysterectomy is sometimes considered the cause of lower urinary tract symptoms (LUTS). We hypothesized that hysterectomy for abnormal uterine bleeding and/or symptoms of fibroids is more likely to cause LUTS than a hysteroscopic procedure for the same indications.

Methods

Two groups of women were compared: one group comprised 3,618 women who had had a hysterectomy due to abnormal uterine bleeding or symptoms of fibroids and the other group comprised 238 women who had had hysteroscopic treatment for the same indications. The main outcome measures were occurrence of LUTS before and 1 year after the surgical intervention. The frequencies of LUTS before and after surgery were compared between the groups. Binary logistic regression was used to model the odds of having postoperative urinary leakage and urgency while controlling for uterine size, surgical procedure and preoperative LUTS.

Results

There were no statistically significant differences between women after hysterectomy and after hysteroscopy in the frequencies of LUTS before or after surgery, when uterine size was comparable. However, there was a difference in the rates of de novo urinary incontinence between women with hysterectomy and women with hysteroscopy (7.6%, 95% CI 6.3–9.0, and 3.2%, 95% CI 1.6–6.5, respectively). Of the women with a large uterus, 58.6% (95% CI 51.5–65.5) reported relief of urinary incontinence and 85.5% (95% CI 82.3–88.4) reported relief of urinary urgency postoperatively.

Conclusions

Our results suggest that it is important to individualize preoperative information in women prior to hysterectomy since the outcome concerning LUTS depends on preoperative symptoms and uterine size.

Increase in physical activity is associated with lower HbA1c levels in children and adolescents with type 1 diabetes: results from a cross-sectional study based on the Swedish pediatric diabetes quality registry (SWEDIABKIDS)

AIMS

To evaluate the associations between physical activity (PA) and metabolic control, measured by glycated hemoglobin (HbA1c), in a large group of children and adolescents with type 1 diabetes.

METHODS

Cross-sectional analysis of data from 4655 patients, comparing HbA1c values with levels of physical activity. The data for the children and adolescents were obtained from the Swedish pediatric diabetes quality registry, SWEDIABKIDS. The patients were 7-18 years of age, had type 1 diabetes and were not in remission. Patients were grouped into five groups by frequency of PA.

RESULTS

Mean HbA1c level was higher in the least physically active groups (PA0: 8.8% ± 1.5 (72 ± 16 mmol/mol)) than in the most physically active groups (PA4: 7.7% ± 1.0 (60 ± 11 mmol/mol)) (p<0.001). An inverse dose-response association was found between PA and HbA1c (β: -0.30, 95% CI: -0.34 to -0.26, p<0.001). This association was found in both sexes and all age groups, apart from girls aged 7-10 years. Multiple regression analysis revealed that the relationship remained significant (β: -0.21, 95% CI: -0.25 to -0.18, p<0.001) when adjusted for possible confounding factors.

CONCLUSIONS

Physical activity seems to influence HbA1c levels in children and adolescents with type 1 diabetes. In clinical practice these patients should be recommended daily physical activity as a part of their treatment.

Glycated haemoglobin variations in paediatric type 1 diabetes: the impact of season, gender and age

AIM

To study whether monthly variations in type 1 diabetes incidence are related to monthly glycated haemoglobin (HbA1c) levels at diagnosis and if high HbA1c at diagnosis is related to certain clinical variables at diagnosis and during the clinical course of the disease.

METHODS

Data from 4430 boys and 3590 girls registered in the Swedish paediatric diabetes quality registry, Swedish paediatric diabetes quality registry, from 2000 to 2010 were analysed.

RESULTS

Month of onset varied (p < 0.001), with 53% diagnosed during September to February, and mean HbA1c at diagnosis was highest in May (10.9%, 96 mmol/mol) and lowest in (October 9.4%, 88 mmol/mol) (p < 0.001). Girls showed higher HbA1c at onset than boys (p < 0.001). More than half (53%) with an annual mean HbA1c of >9.3% (78 mmol/mol) and 4% of those with an annual mean of <7.4% (57 mmol/mol) in 2007 had >9.3% (78 mmol/mol) in 2010.

CONCLUSION

Patients with high HbA1c levels during a certain period have the same high levels several years later. This group, perhaps including those with high HbA1c level at diagnosis, may need more intensive care, including extra support from the diabetes teams and other forms of medical treatment.