Factors influencing hospitalization or emergency department visits and mortality in type 2 diabetes following the onset of new cardiovascular diagnoses in a population-based study.

BACKGROUND: Individuals with type 2 diabetes (T2D) are at increased risk of developing cardiovascular disease (CVD) which necessitates monitoring of risk factors and appropriate pharmacotherapy. This study aimed to identify factors predicting emergency department visits, hospitalizations, and mortality among T2D patients after being newly diagnosed with CVD. METHODS: In a retrospective observational study conducted in Region Halland, individuals aged > 40 years with T2D diagnosed between 2011 and 2019, and a new diagnosis of CVD between 2016 and 2019, were followed for one year from the date of CVD diagnosis. The first encounter for CVD diagnosis was categorized as inpatient-, outpatient-, primary-, or emergency department care. Follow-up included laboratory tests, blood pressure, pharmacotherapies, and healthcare utilization. Hazard ratios (HR) in two Cox regression analyses determined relative risks for emergency visits/hospitalization and mortality, adjusting for age, sex, glucose regulation, lipid levels, kidney function, blood pressure, pharmacotherapy, and healthcare utilization. RESULTS: The study included a total of 1759 T2D individuals who received a new CVD diagnosis, with 67% diagnosed during inpatient care. The average hospitalization stay was 6.5 days, and primary care follow-up averaged 10.1 visits. Patients with CVD diagnosed in primary care had a HR 0.52 (confidence interval [CI] 0.35-0.77) for emergency department visits/hospitalization, but age had a HR 1.02 (CI 1.00-1.03). Pharmacotherapy with insulin, DPP4-inhibitors, aldosterone antagonists, and beta-blockers had a raised HR. Highest mortality risk was observed when CVD was diagnosed inpatient care, systolic blood pressure < 100 mm Hg and elevated HbA1c. Age had a HR 1.05 (CI 1.03-1.08), eGFR < 30 ml/min HR 1.46 (CI 1.01-2.11), and LDL-Cholesterol > 2,5 h 1.46 (CI 1.01-2.11) and associated with increased mortality risk. Pharmacotherapy with metformin had a HR 0.41 (CI 0.28-0.62), statins a HR 0.39 (CI 0.27-0.57), and a primary care follow-up < 30 days a HR 0.53 (CI 0.37-0.77) and associated with lower mortality risk. CONCLUSIONS: T2D individuals who had a new diagnosis of CVD were predominantly diagnosed when hospitalized, while follow-up typically occurred in primary care. Identifying factors that predict risks of mortality and hospitalization should be a focus of follow-up care, underscoring the critical role of primary care in the effective management of T2D and CVD.

Promoting mental health in migrants: a GHQ12-evaluation of a community health program in Sweden.

BACKGROUND: Research increasingly highlight post-migration factors for migrants' mental health status. We investigated the association between participation in a health promotion program and changes in migrants' mental health, and if socio-demographic factors and length of time in the new home country, Sweden, influenced a potential association. METHODS: A five-week health promotion program named 'Hälsostöd' [Health Support], led by community health workers, was offered to migrants, primarily asylum seekers and newly arrived immigrants (N = 202). The framework for the program was salutogenic psycho-education, which focused on health effects of migration experiences, lifestyle and health, and the health care system. Mental health was measured at the start and end of the program. We analysed this follow up by using the recommended clinical cut off (i.e. > 11 of maximum 36, with higher scores indicating possible mental illness) in the 12- item version of the General Health Questionnaire (GHQ12). Chi Square test was used to analyse statistical significance of changes, and multinomial logistic regression to analyse associations to sociodemographic factors and length of stay in Sweden. RESULTS: The number of participants scoring above the clinical cut off after participation in the program (N = 79, 39.1%) was lower compared to the corresponding number before participation (N = 111, 55.0%), Chi Square = 10.17, p < .001. The majority of the participants had no change 72.3 (N = 146), 21.8% (N = 44) had a positive change, yet 5.9% (N = 12) had a negative change, compared to before participation in the program. None of the investigated sociodemographic factors showed to significantly influence the association. Length of stay in Sweden was trending, with participants with longer stay being more likely to have possible mental illness. CONCLUSION: We conclude that psycho-educative programs, similar to 'Hälsostöd', have potential for promoting asylum seekers' and newly arrived immigrants' mental health as the evaluation showed a considerable number of positive changes in participants. The result suggests the importance of offering immigrants health promotive programs in close connection with arrival to the new home country. Future research should clarify under what circumstances sociodemographic factors influence the effects of such programs.

Participation in a Swedish cervical cancer screening program among women with psychiatric diagnoses: a population-based cohort study.

BACKGROUND: In Sweden, organized screening programs have significantly reduced the incidence of cervical cancer. For cancers overall, however, women with psychiatric diagnoses have lower survival rates than other women. This study explores whether women with psychiatric diagnoses participate in cervical cancer screening programs to a lesser extent than women on average, and whether there are disparities between psychiatric diagnostic groups based on grades of severity. METHODS: Between 2000 and 2010, 65,292 women within screening ages of 23-60 had at least two ICD-10 (International Statistical Classification of Diseases and Related Health Problems - Tenth Revision) codes F20*-F40* registered at visits in primary care or psychiatric care in Region Västra Götaland, Sweden. Participation in the cervical cancer screening program during 2010-2014 was compared with the general female population using logistic regression adjusted for age. RESULTS: Relative risk for participation (RR) for women diagnosed within psychiatric specialist care RR was 0.94 compared with the general population, adjusted for age. RR for diagnoses outside specialist care was 0.99. RR for psychoses (F20*) was 0.81. CONCLUSIONS: Women with less-severe psychiatric diagnoses participate in the screening program to the same extent as women overall. Women who have received psychiatric specialist care participate to a lesser extent than women overall. The lowest participation rates were found among women diagnosed with psychoses.

Prevalence of Obesity and Related Factors among Bouyei and Han Peoples in Guizhou Province, Southwest China.

OBJECTIVE: To investigate the prevalence of general and abdominal obesity and associated factors in Bouyei and Han peoples. DESIGN: A cross-sectional study was carried out in Guizhou province, southwest China in 2012, with multi-stage sampling to enroll 4551 participants aged 20 to 80 years. General and abdominal obesity were defined by World Health Organization (WHO) for Chinese. A design-based analysis was performed to evaluate prevalence of obesity and its related factors. RESULTS: Bouyei people had a significantly lower prevalence of general obesity (4.8% vs. 10.9%, p < 0.05) and abdominal obesity (13.6% vs. 26.8%, p < 0.05) than that in Han people. Prevalence of obesity increased with age until middle-age period and declined thereafter. Men aged 40-49 years group and women aged 50-59 years group have the highest prevalence of general obesity. Prevalence of abdominal obesity was higher than that of general obesity. Middle-age, Higher income, Han people were significantly associated with an increased risk of General/abdominal obesity. CONCLUSIONS: Bouyei people had a lower prevalence of general and abdominal obesity than the Han people. Etiological studies should be conducted to determine underlying genetic factors and dietary factors.

A diagnostic algorithm to identify paired tumors with clonal origin.

Despite practical implications we still lack standardized methods for clonality testing of tumor pairs. Each tumor is characterized by a set of chromosomal abnormalities, nonrandom changes preferentially involving specific chromosomes and chromosomal regions. Although tumors accumulate chromosomal abnormalities during their development, the majority of these alterations is specific and characteristic for each individual tumor is not exhibited at the population level. Assumingly, secondary tumors that develop from disseminated cells from the primary tumor inherit not only chromosomal changes specific for the cancerous process but also random chromosomal changes that accumulate during tumor development. Based on this assumption, we adopted an intuitive index for genomic similarities of paired tumors, which ranges between zero (completely different genomic profiles) and one (identical genomic profiles). To test the assumption that two tumors have clonal origins if they share a higher degree of genomic similarity than two randomly paired tumors, we built a permutation-based null-hypothesis procedure. The procedure is demonstrated using two publicly available data sets. The article highlights the complexities of clonality testing and aims to offer an easy to follow blueprint that will allow researchers to test genomic similarities of paired tumors, with the proposed index or any other index that fits their need.

Integrative genomics with mediation analysis in a survival context.

DNA copy number aberrations (DCNA) and subsequent altered gene expression profiles may have a major impact on tumor initiation, on development, and eventually on recurrence and cancer-specific mortality. However, most methods employed in integrative genomic analysis of the two biological levels, DNA and RNA, do not consider survival time. In the present note, we propose the adoption of a survival analysis-based framework for the integrative analysis of DCNA and mRNA levels to reveal their implication on patient clinical outcome with the prerequisite that the effect of DCNA on survival is mediated by mRNA levels. The specific aim of the paper is to offer a feasible framework to test the DCNA-mRNA-survival pathway. We provide statistical inference algorithms for mediation based on asymptotic results. Furthermore, we illustrate the applicability of the method in an integrative genomic analysis setting by using a breast cancer data set consisting of 141 invasive breast tumors. In addition, we provide implementation in R.

Increasing participation in cervical cancer screening: telephone contact with long-term non-attendees in Sweden. Results from RACOMIP, a randomized controlled trial.

Non-participation is the foremost screening-related risk factor for cervical cancer. We studied the effectiveness and cost-effectiveness of an intervention to increase participation in the context of a well-run screening program. Telephone contact with non-attendees, offering an appointment to take a smear, was compared with a control group in a population-based randomized trial in western Sweden. Of 8,800 randomly selected women aged 30-62, without a registered Pap smear in the two latest screening rounds, 4,000 were randomized to a telephone arm, another 800 were offered a high-risk human papillomavirus (HPV) self-test by mail (not reported in this article) and 4,000 constituted a control group. Endpoints were frequency of testing, frequency of abnormal smears and further assessment of abnormal tests. Participation during the following 12 months was significantly higher in the telephone arm than in the control group, 718 (18.0%) versus 422 (10.6%) [RR: 1.70, 95% confidence interval (CI): 1.52-1.90]. The number of detected abnormal smears was 39 and 19, respectively (RR: 2.05, 95% CI: 1.19-3.55). The respective numbers of further assessed abnormalities were 34 and 18 (RR: 1.89, 95% CI: 1.07-3.34). Twice as many high-grade intraepithelial neoplasia (CIN2+) were detected and treated in the telephone arm: 14 and 7, respectively. Telephone contact with women who have abstained from cervical cancer screening for long time increases participation and leads to a significant increase in detection of atypical smears. Cost calculations indicate that this intervention is unlikely to be cost-generating and this strategy is feasible in the context of a screening program.

Segmented regression, a versatile tool to analyze mRNA levels in relation to DNA copy number aberrations.

DNA copy number aberrations (CNA) and subsequent altered gene expression profiles (mRNA levels) are characteristic features of cancerous cells. Integrative genomic analysis aims to identify recurrent CNA that may have a potential role in cancer development, assuming that gene amplification is accompanied by overexpression, while deletions give rise to downregulation of gene expression. We propose a segmented regression-based approach to identify CNA-driven alteration of gene expression profiles. Segmented regression allows to fit piecewise linear models in different domains of CNA joined by a change-point, where the mRNA-CNA relationship undergoes structural changes. Here, we illustrate the implementation and applicability of the proposed model using 1,161 chromosome fragments detected as DNA CNA in primary tumors from 97 breast cancer patients. We identified significant CNA-driven changes in gene expression levels for 341 chromosome fragments, of which 72 showed a nonlinear relationship to CNA. For 59 of 72 chromosome fragments (82%), we observed an initial increase in mRNA levels due to changes in CNA. After the change-point was passed, the mRNA levels reached a plateau, and a further increase in DNA copy numbers did not induce further elevation in mRNA levels. In contrast, for 13 chromosome fragments, the change-point marked the point where mRNA production accelerated. We conclude that segmented regression modeling may provide valuable insights into the impact CNA have on gene expression in cancer cells.

Clinical use and effectiveness of lipid lowering therapies in diabetes mellitus--an observational study from the Swedish National Diabetes Register.

OBJECTIVES: To describe the use and evaluate the effectiveness of different lipid lowering therapies in unselected patients with type 1 and type 2 diabetes in clinical practice. DESIGN: Observational population-based study using the personal identification number to link information from the National Diabetes Register, the Prescribed Drug Register and the Patient register in Sweden. All patients in the NDR aged 18-75 years with diabetes more than one year were eligible, but only patients starting any lipid lowering treatment with at least three prescriptions 1 July 2006-30 June 2007 were included (n = 37,182). The mean blood lipid levels in 2008 and reductions in LDL cholesterol were examined. RESULTS: Blood lipid levels were similar in patients treated with simvastatin, atorvastatin and rosuvastatin, showing similar lipid lowering effect as currently used. Users of pravastatin, fluvastatin, ezetimib and fibrate more seldom reach treatment goals. Moderate daily doses of the statins were used, with 76% of simvastatin users taking 20 mg or less, 48% of atorvastatin users taking 10 mg, 55% of pravastatin users taking 20 mg, and 76% of rosuvastatin users taking 5 or 10 mg. CONCLUSIONS: This observational study shows that the LDL-C levels in patients taking simvastatin, atorvastatin or rosuvastatin are very similar as currently used, as well as their LDL-C lowering abilities. There is potential to intensify lipid lowering treatment to reduce the remaining high residual risk and achieve better fulfilment of treatment goals, since the commonly used doses are only low to moderate.

Insulin glargine use and short-term incidence of malignancies - a three-year population-based observation.

AIMS/HYPOTHESIS: To further investigate the association of cancer occurrence with the use of insulin glargine. METHODS: We followed 114 838 individuals using insulin between 1 July and 31 December 2005. From 1 January 2006 to 31 December 2008, we noted the occurrence of malignancies (cohort I). Insulin users between 1 July and 31 December 2006 were followed for the occurrence of malignancies in 2007 and 2008 (cohort II). Users of insulin during three consecutive six-month periods from 1 July 2005 to 31 December 2006 were followed for the occurrence of malignancies in 2007 and 2008 (cohort III). The Prescribed Drug Register, the Cancer Register, and the Causes of Death Register were used to obtain information on targeted person-time and outcome. We retrieved variables reflecting potential confounding factors from the Swedish National Diabetes Register, the Prescribed Drug Register, the Patient Register, the Medical Birth Register and the National Education Register. With Poisson regression we evaluated the association between insulin use and malignancy outcome with adjustment for confounders. RESULTS: The adjusted incidence rate ratio (and 95% confidence interval) for women who used insulin glargine alone compared with those who used other types of insulin, was 1.60 (1.10-2.32) for breast cancer but included 1.0 for malignancy outcomes other than breast cancer for men and women when analyzing cohort I with follow-up in 2006-2008. For cohort II and III the corresponding incidence rate ratios were 1.38 (0.87-2.18), and 0.87 (0.41-1.85), respectively. CONCLUSION/INTERPRETATION: We do not see an increased risk during 2008 for breast cancer in the insulin glargine group. We need data for additional years before we can state with reasonable certainty that the increase in breast cancer incidence that we observed in Sweden in 2006 and 2007 was due to a random fluctuation or whether there is an association with the use of insulin glargine.

Couples' communication before the wife's death to cancer and the widower's feelings of guilt or regret after the loss - a population-based investigation.

AIM: To investigate the association between couples' communication before the wife's death to cancer and the widower's feelings of guilt and regret after the loss, in a population-based data. METHODS: Men (n=907) younger than 80 years and living in Sweden, who had lost their wives due to cancer, were asked 4-5 years after their loss to answer an anonymous postal questionnaire it included questions about the couple's end-of-life communication during the last 3 months of life and the widower's feelings of guilt or regret during the first 6 months after the wife's death. RESULTS: During the last 3 months of their wives' lives, men who had not talked about the impending death with their wives had a higher risk of experiencing feelings of guilt than men who did talk (relative risk (RR) 2.0, 95% confidence interval [CI] 1.2-3.4). Men who were not able to spend as much time as they wished with their wives had an increase in the risk of having feelings of guilt twice that of men who spent time (RR 2.0 95% CI 1.5-2.7). Men who did not talk with their wives about how they could cope practically or emotionally after the death had elevated risks of guilt feelings compared with men who talked (RR 1.8, 95% CI 1.0-3.0; RR 1.7, 95% CI 1.0-2.9, respectively). Men who realised it was too late to discuss the impending death had an increased risk of guilt feelings (RR 4.3, 95% CI 2.9-6.6). Men who thought that not everything had been brought to closure before their wives' deaths had 3.3 times increased risk of guilt feeling (RR 3.3, 95% CI 1.7-6.4). CONCLUSIONS: A man who does not have end-of-life discussions with his wife during the last 3 months before her death from cancer may be subject to a significantly greater risk of experiencing feelings of guilt or regret in widowhood than men who did engage in such discussions.

An association study of SNP + 45 T > G of the AdipoQ gene with type 2 diabetes in Yi and Han people in China.

BACKGROUND: The Yi people are considered the most primitive society in China, and live in the remote mountainous areas of Southwestern China. There have been no previous publications on genetic research concerning type 2 diabetes (T2D) in the Yi people. This is the first report that presents the association between SNP + 45 T > G (rs2241766) of the AdipoQ gene and T2D in Yi people. Our previous study showed that the prevalence of T2D in Yi people was lower than the national level in 2008. Genetic differences between Yi and Han people might be one possible explanation for this observation. Studies on the single nucleotide polymorphism SNP + 45 T > G (rs2241766) of the AdipoQ gene in Chinese Han people showed inconsistent results. This study was designed to identify genetic variants of the AdipoQ gene that contribute to the development of T2D in Yi and Han people. METHODS: A case-control study on the association between SNP + 45 T > G (rs2241766) of the AdipoQ gene and T2D was carried out based on a cross-sectional study in the Liangshan area, Sichuan province in Southwestern China. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique was used to test for the presence of SNP + 45 T > G (rs2241766) in the AdipoQ gene. RESULTS: Distributions of genotypes variants (TT/GG/TG) were not significantly different between T2D cases and controls both in Yi and Han people in China (p > 0.05). The allele frequencies (T/G) demonstrated a non-significant association with T2D, displaying OR of 1.1 (95 % CI: 0.8, 1.6) in Yi people and OR of 1.0 (95 % CI: 0.7, 1.4) in Han people. CONCLUSIONS: The SNP + 45 (rs2241766) of the AdipoQ gene is not associated with T2D neither in Yi nor in Han people in southwestern China.

Bias in odds ratios by logistic regression modelling and sample size.

BACKGROUND: In epidemiological studies researchers use logistic regression as an analytical tool to study the association of a binary outcome to a set of possible exposures. METHODS: Using a simulation study we illustrate how the analytically derived bias of odds ratios modelling in logistic regression varies as a function of the sample size. RESULTS: Logistic regression overestimates odds ratios in studies with small to moderate samples size. The small sample size induced bias is a systematic one, bias away from null. Regression coefficient estimates shifts away from zero, odds ratios from one. CONCLUSION: If several small studies are pooled without consideration of the bias introduced by the inherent mathematical properties of the logistic regression model, researchers may be mislead to erroneous interpretation of the results.

Unrelieved symptoms of female cancer patients during their last months of life and long-term psychological morbidity in their widowers: a nationwide population-based study.

AIM: To investigate if a cancer patient's unrelieved symptoms during the last 3 months of life increase the risk of long-term psychological morbidity in the surviving widower. METHODS: Men (n=907) younger than 80 years and living in Sweden, who had lost their wives due to cancer, were asked 4-5 years after their loss to answer an anonymous postal questionnaire that included questions about their current psychological morbidity and their wives' unrelieved symptoms during the last 3 months of life. RESULTS: If the wife suffered unrelieved anxiety or pain during the last 3 months of her life, then the widowers had a higher risk of sleep-related problems 4-5 years after the loss. When the wife had suffered from anxiety, the relative risks (RR) for the widowers' sleep-related problems were: difficulty falling asleep (RR 1.7, 95% CI 1.0-3.0) and waking up at night with anxiety (RR 4.9, 95% CI 1.5-15.7). When the wife had unrelieved pain, the widowers years later had an increased risk of difficulty falling asleep at night (RR 1.8, 95% CI 1.0-3.3). CONCLUSIONS: The unrelieved patients' end-of-life problems increase the risk of widowers' long-term mental suffering. Efficient and effective diagnoses and treatment of pain and anxiety in terminally ill cancer patients are critical for both patients and their surviving widowers.

Risks of nontraumatic lower-extremity amputations in patients with type 1 diabetes: a population-based cohort study in Sweden.

OBJECTIVE: The purpose of this study was to estimate the risks of nontraumatic lower-extremity amputations (LEAs) in patients with type 1 diabetes. RESEARCH DESIGN AND METHODS: We identified 31,354 patients with type 1 diabetes (15,001 women and 16,353 men) in the Swedish Inpatient Register between 1975 and 2004. The incidence of nontraumatic LEAs was followed up until 31 December 2004 by cross-linkage in the Inpatient Register and linkage to the Death and Migration registers. Poisson regression modeling was used to compare the risks of nontraumatic LEAs during different calendar periods of follow-up, with adjustment for both sex and attained age at follow-up. Standardized incidence ratios (SIRs) were used to estimate the relative risks (RRs) with the age-, sex-, and calendar period-matched general Swedish population as reference. The cumulative probability of nontraumatic LEAs was calculated by the Kaplan-Meier method. RESULTS: In total, 465 patients with type 1 diabetes underwent nontraumatic LEAs. The risk was lower during the most recent calendar period (2000-2004) than during the period before 2000 (RR 0.6 [95% CI 0.5-0.8]). However, even in this most recent period, the risk for nontraumatic LEAs among these relatively young patients was 86-fold higher than that in the matched general population (SIR 85.8 [72.9-100.3]). By age 65 years, the cumulative probability of having a nontraumatic LEA was 11.0% for women with type 1 diabetes and 20.7% for men with type 1 diabetes. CONCLUSIONS: Although the risks appeared to have declined in recent years, patients with type 1 diabetes still have a very high risk for nontraumatic LEAs.

Fertility in women with type 1 diabetes: a population-based cohort study in Sweden.

OBJECTIVE: The purpose of this study was to assess fertility in women with type 1 diabetes and the risk of congenital malformations in their offspring. RESEARCH DESIGN AND METHODS: This was a register-based cohort study in Sweden. All 5,978 women hospitalized for type 1 diabetes at age