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Background: The prevalence of atopic dermatitis (AD) has increased over several decades and now affects about one-fifth of all children in high-income countries (HICs). While the increase continues in lower-income countries, the prevalence of AD might have reached a plateau in HICs.

Objectives: To investigate trends in the prevalence of AD and atopic comorbidity in schoolchildren in Sweden.

Methods: The study population consisted of three cohorts of children (median age 8 years) in Norrbotten, Sweden, for 1996 (n = 3430), 2006 (n = 2585) and 2017 (n = 2785). An identical questionnaire that included questions from the International Study of Asthma and Allergies in Childhood (ISAAC) protocol was used in all three cohorts. Trends in AD prevalence were estimated, as well as trends in atopic comorbidity. AD prevalence was estimated both according to the ISAAC definition of AD and by adding the reported diagnosis by a physician (D-AD).

Results: The prevalence of AD decreased in the last decade, from 22.8% (1996) and 21.3% (2006) to 16.3% (2017; P < 0.001). The prevalence of D-AD was lower, but the same pattern of decrease was seen, from 9.3% (1996) and 9.4% (2006) to 5.7% (2017; P < 0.001). In all three cohorts, AD was more common among girls than boys (18.9% vs. 13.8% in 2017; P < 0.001). Children from the mountain inlands had a higher prevalence of AD than children from coastal cities (22.0% vs. 15.1% in 2017; P < 0.001). In comparing D-AD, there were no significant differences between the sexes or between inland or coastal living. Concomitant asthma increased over the years from 12.2% (1996) to 15.8% (2006) to 23.0% (2017; P < 0.001). Concomitant allergic rhinitis and allergic sensitization increased from 1996 (15.0% and 27.5%) to 2006 (24.7% and 49.5%) but then levelled off until 2017 (21.0% and 46.7%).

Conclusions: The prevalence of AD among schoolchildren in Sweden decreased over the study period, whereas atopic comorbidity among children with AD increased. Although a decrease was seen, AD is still common and the increase in atopic comorbidity among children with AD, especially the increase in asthma, is concerning.

Objective:  To present the technique of deep brain stimulation (DBS) and to evaluate the studies conducted on DBS in the treatment of therapy-refractory major depressive disorder (MDD).

Method:  A review of the literature on DBS in the treatment of MDD was conducted.

Results:  The results of DBS in MDD have been presented in 2 case reports and 3 studies of 47 patients operated upon in 5 different target areas. Positive effects have been presented in all studies and side effects have been minor. DBS in the nucleus accumbens resulted in a mean reduction of Hamilton depression rating scale (HDRS) of 36% after 1 year and 30% of the 10 patients achieved remission. DBS in the internal capsule/ventral striatum resulted in a reduction of 44% after 1 year, and at the last evaluation after in mean 2 years, 40% of the 15 patients were in remission. The 20 patients with subcallosal cingulated gyrus DBS had a reduction of HDRS of 52% after 1 year, and 35% were within 1 point from remission or in remission.

Conclusion:  DBS is a promising treatment for therapy-refractory MDD. The published experience is, however, limited, and the method is at present an experimental therapy.

BACKGROUND: Deep brain stimulation (DBS) has emerged as a treatment for severe cases of therapy-refractory obsessive-compulsive disorder (OCD), and promising results have been reported. The literature might, however, be somewhat unclear, considering the different targets used, and due to repeated inclusion of individual patients in multiple publications. The aim of this report was to review the literature on DBS for OCD.

METHODS: The modern literature concerning studies conducted on DBS in the treatment of OCD was reviewed.

RESULTS: The results of DBS in OCD have been presented in 25 reports with 130 patients, of which, however, only 90 contained individual patients. Five of these reports included at least 5 individual patients not presented elsewhere. Sixty-eight of these patients underwent implantation in the region of the internal capsule/ventral striatum, including the nucleus accumbens. The target in this region has varied between groups and over time, but the latest results from bilateral procedures in this area have shown a 50% reduction of OCD scores, depression, and anxiety. The subthalamic nucleus has been suggested as an alternative target. Although beneficial effects have been demonstrated, the efficacy of this procedure cannot be decided, because only results after 3 months of active stimulation have been presented so far.

CONCLUSIONS: DBS is a promising treatment for therapy-refractory OCD, but the published experience is limited and the method is at present an experimental therapy.

Background Depression is a very common disorder that causes great suffering for the patient. Recognizing depressed patients in primary care (PC) settings is a challenge and only about half are identified as depressed by their general practitioner (GP). Among patients receiving antidepressants (AD) about 70 % are improved, but only about 35 % reach remission. Hence, there is a need to identify depressed patients and to develop optimal treatment strategies in PC. Self-rating scales can be helpful in assisting the recognition. Patients’ beliefs about the cause of depression and their attitudes towards treatment options have been found to influence their help-seeking behavior, coping strategies, treatment preferences and adherence. To increase depressed patients’ knowledge about their disorder and to help them reach and stay in remission, the “Contactus program” was launched in Sweden, containing patient education and group counseling, as supplement to the usual care in PC.

Aims To explore patients’ beliefs about causes and improvement factors for depression, and evaluate if the Contactus program could help to improve treatment outcome. Also, to investigate the psychometrics of two commonly used self-rating scales for depression, HADS and PHQ-9.

Methods Treatment outcome among patients participating in the Contactus program (N=205) was compared to a control group (N=114) treated as usual. The outcome was measured by HADS, GAF-self and by questionnaires. Both groups also answered an open-ended question about the cause of their depression at baseline and another question about improvement factors at follow-up after six weeks. To compare HADS and PHQ-9, patients (N=737) visiting their physician because of depression filled in both scales. The scales cut-offs were compared with Cohen’s Kappa, internal consistency was calculated and factor analysis was performed. 

Results Depressed patients participating in the Contactus program had a response rate of 55 % compared to 29 % in the control group (p=0.006). Also, remission was reached among 42 % in the Contactus group and 21 % among the controls (p=0.02). The patient’s subjective evaluation of the outcome after six weeks showed that 72% of the Contactus patients considered themselves improved vs. 47% among controls (p=0.01). The most common described reason for depression was current stress, most often work related, and own personality traits. Very few mentioned biological factors. For improvement, the most commonly mentioned aspects were participation in the Contactus program and AD. When comparing HADS to PHQ-9 their agreement at recommended cut-offs, HADS-D≥11 and PHQ-9≥10, was low (k=0.35). The highest Kappa value (0.56) and also equal prevalence of depression were found at HADS-D≥8 and PHQ≥12. Both scales had a high internal consistency (α=0.9).

Conclusions The results of this thesis indicate that patient education and group counseling are valuable supplements to usual treatment of depression in PC. It is also clear that patients and professionals often have different opinions about the causes of depression, at least concerning biological factors. The patients were generally positive to professional help. The patients’ own beliefs about their illness must be considered when developing new types of interventions and when trying to reach an understanding in the patient-doctor encounter. Finally, there are many self-rating scales for depression. Here two scales were compared and both showed good psychometric properties in terms of internal consistency and factor structure. However their optimal cut-offs were questioned. In conclusion, self-rating scales are useful in identifying depressed patients in PC and might also be apt for measuring treatment outcome. Offering the patient education about their disorder and possibility to share experiences seems to increase response and remission rates, substantially. More studies are needed to explore the effects of educational programs, group interventions, and how patients’ own believes interact with the choice of treatment, adherence and outcome.

BACKGROUND: The Contactus program for depressed patients in primary care, consists of six lectures about depression, each followed by a group discussion. The aim of this study was to investigate if Contactus can improve treatment outcome in comparison to a control group. METHODS: Forty-six primary care centres in Sweden, each randomly allocated either to the Contactus group or to the control group, included depressed patients, 205 in the Contactus group and 114 in the control group. Besides regular treatment of depression, the Contactus group participated in the educational program. At start and after 6 weeks, patients filled in a questionnaire and the self-reports: HADS (Hospital Anxiety and Depression Scale) and GAF-self (Global Assessment of Functioning). RESULTS: After 6 weeks, clinically depressed patients (HAD-depression score >10) had a mean improvement in HAD-D of 4.6 in Contactus vs. 3.0 in controls (p=0.02), and 72% vs. 47% considered themselves to feel better (p=0.01). Increase in GAF score was 11.8 vs. 5.8 (p=0.04), respectively. According to HADS, 55% in Contactus were responders vs. 29% among controls (p=0.006), and 42% vs. 21% (p=0.02) were in remission. LIMITATIONS: Only 40% of the patients in Contactus and 35% among controls were clinically depressed according to the HADS (>10 points) at inclusion. CONCLUSIONS: Patient education and group counselling contributes significantly to better improvement among depressed patients. Group treatment is inexpensive and could be implemented in the routine care of depressed patients in primary care.

BACKGROUND: Patients' beliefs about the cause of their depression can affect their help-seeking behavior, treatment preferences, coping strategies and treatment compliance. There are few studies exploring depressed patients' beliefs about the causes and to our knowledge none in a Swedish population. However, previous studies show that the patients more often mention environmental and psychological causes than biological. The aim of this study was to further explore depressed patients' answers to an open-ended question about the etiology of their depression. METHODS: Primary care patients, participating in a study evaluating patient education, were asked an open-ended question about their beliefs about what had caused their depression. Answers were obtained from 303 patients. RESULTS: The analysis of the patients' beliefs emerged into 16 different categories of explanations for depression that could be organized into three larger themes: current life stressors, past life events and constitutional factors. Work-related stress was the most commonly mentioned cause, followed by personality and current family situation. Only 3.6% stated biological reasons. LIMITATIONS: We could only count the frequency of mentioned causes, but no ranking of the importance of these causes. CONCLUSIONS: Primary care patients often gave multi-causal explanations to their depression. Biological explanations were rare. Their beliefs were predominantly current life stressors such as work or family situation and also their own personality. Patients' beliefs about their illness are important in the patient-doctor encounter, when developing new treatment strategies aiming at improved adherence to both psychopharmacological and psychotherapeutic treatments and also in patient education programs.

Background: Depression is common among primary care patients and the usual treatment often consists of antidepressant medication and supportive counselling/follow-ups. Previous studies have shown that patients and professionals have different beliefs about treatment, which in turn can decrease acceptance of the diagnosis, compliance and treatment outcome.

Aims: The purpose of this study was to investigate previously depressed patients’ beliefs about the cause of their improvement. Methods: Depressed primary care patients (n = 184) who considered themselves improved at follow-up answered an open-ended question about what they believed had made them better. Among these 117 patients had, in addition to treatment as usual, participated in an intervention with patient education and group counselling (the Contactus programme), whereas 67 were controls. The groups were comparable at baseline and 82% were on antidepressants. 

Results: In total, the patients mentioned 14 separate improving factors, which could be organized to the larger themes external factors, self-management, passing spontaneously and professional help. The most frequently mentioned factors for improvement were the Contactus programme (53.0%), antidepressants (40.2%) and personal development (27.2%). Few gender and age differences were seen. The controls who mentioned professional help were more likely to have a better outcome. 

Conclusions: The patients were generally positive to professional help such as antidepressants and the Contactus programme. Patient education and group counselling seems to be a valuable supplement to treatment of depressed patients in primary care.

BACKGROUND: More than half of patients with depression go undetected. Self-rating scales can be useful in screening for depression, and measuring severity and treatment outcome. AIM: This study compares the Hospital Anxiety and Depression Scale (HADS) and the Patient Health Questionnaire (PHQ-9) with regard to their psychometric properties, and investigates their agreement at different cut-off scores. METHOD: Swedish primary care patients and psychiatric outpatients (n = 737) who reported symptoms of depression completed the self-rating scales. Data were collected from 2006 to 2007. Analyses with respect to internal consistency, factor analysis, and agreement (Cohen's kappa) at recommended cut-offs were performed. RESULTS: Both scales had high internal consistency (alpha = 0.9) and stable factor structures. Using severity cut-offs, the PHQ-9 (> or =5) diagnosed about 30% more patients than the HADS depression subscale (HADS-D; > or =8). They recognised the same prevalence of mild and moderate depression, but differed in relation to severe depression. When comparing recommended screening cut-offs, HADS-D > or =11 (33.5% of participants) and PHQ-9 > or =10 (65.9%) agreement was low (kappa = 0.35). Using the lower recommended cut-off in the HADS-D (> or =8), agreement with PHQ-9 > or =10 was moderate (kappa = 0.52). The highest agreement (kappa = 0.56) was found comparing HADS-D > or =8 with PHQ-9 > or =12. This also equalised the prevalence of depression found by the scales. CONCLUSION: The HADS and PHQ-9 are both quick and reliable. The HADS has the advantage of evaluating both depression and anxiety, and the PHQ-9 of being strictly based upon the Diagnostic and Statistical Manual of Mental Disorders. The agreement between the scales at the best suitable cut-off is moderate, although the identified prevalence was similar. This indicates that the scales do not fully identify the same cases. This difference needs to be further explored.

Background: In the present study, we describe prevalence trends of asthma and investigate the association with asthma symptoms, use of asthma medication, and asthma severity among 8-year-old children in Norrbotten, Sweden in 1996, 2006, and 2017.

Methods: Within the Obstructive Lung Disease in Northern Sweden (OLIN) studies, three pediatric cohorts were recruited in 1996, 2006, and 2017 respectively. Identical methods were used; all children in first and second grade (median age 8 years) in three municipalities were invited to a parental questionnaire survey, completed by n = 3430 in 1996 (97% participation), n = 2585 in 2006 (96%), and n = 2785 in 2017 (91%). The questionnaire included questions about respiratory symptoms and diagnosis, treatment, and severity of asthma.

Results: The prevalence of wheezing was stable during the study, 10.1% in 1996; 10.8% in 2006; and 10.3% in 2017, p =.621, while physician-diagnosed asthma increased: 5.7%, 7.4%, and 12.2%, p <.001. The use of asthma medication in the last 12 months increased: 7.1%, 8.7%, and 11.5%, p <.001. Among children diagnosed with asthma, the prevalence of asthma symptoms, the impact on daily life, and severe asthma decreased, while the use of inhaled corticosteroids increased from 1996 until 2017.

Conclusion: The prevalence of wheezing was stable among 8-year-old in this area from 1996 to 2017, while the prevalence of physician-diagnosed asthma doubled but without an increase in asthma morbidity. The increase of physician-diagnosed asthma without a coincident increase in asthma morbidity can partly be explained by more and earlier diagnosis among those with mild asthma.