Prescription patterns in unipolar depression: A nationwide Danish register-based study of 113,175 individuals followed for 10 years.

BACKGROUND: Evidence-based use of antidepressant medications is of major clinical importance. We aimed to uncover precription patterns in a large cohort of patients with unipolar depression. MATERIAL AND METHODS: Using Danish nationwide registers, we identified individuals with a first-time hospital diagnosis of unipolar depression between January 1st, 2001, and December 31st, 2016. Redemeed prescriptions of antidepressants from five years before to five years after diagnosis were retreived. Lithium and relevant antipsychotics were included. Data were analyzed with descriptive statistics including sunburst plots. Cox regressions were used to rank the risk of treatment failure according to antidepressant category and depression severity, as measured by hazard ratios of drug shift. RESULTS: The full study population consisted of 113,175 individuals. Selective Serotonin Reuptake Inhibitors was the predominantly prescribed first-line group, both before (55.4%) and after (47.7%) diagnosis and across depression severities. Changes of treatment strategy were frequent; 60.8%, 33.7%, and 17.1% reached a second, third, and fourth treatment trial after the hospital diagnosis, respectively. More than half of patients continued their pre-diagnosis antidepressant after diagnosis. The risk of change of treatment strategy was generally lower in mild-moderate depression and higher in severe depression, with tricyclic antidepressants carrying the highest risk in the former and the lowest risks in the latter. Overall, prescribing were often not in accordance with guidelines. CONCLUSION: These findings uncover a potential for improving the clinical care for patients with unipolar depression through optimization of the use of marketed antidepressants.

Sedative drug prescription patterns in Danish adults from 2002 through 2021. A register-based cohort study.

OBJECTIVE: Pharmacological treatment strategies for insomnia seem to vary, and there is lack of knowledge about how sedative drugs are used in a real-world setting. We investigated changes in sedative drug prescription patterns in Danish adults who initiated treatment between 2002 and 2016. METHODS: All adults with a first-time purchase of a sedative drug registered in the Danish National Prescription Register from 2002 through 2016 were followed for five years between 2002 and 2021 for subsequent prescriptions of sedative drugs, death, or emigration. Sedative drugs were classified into anxiolytic benzodiazepines (N05BA), hypnotic benzodiazepines (N05CD), Z-drugs (N05CF), melatonin (N05CH01), promethazine (R06AD), and low-dose quetiapine (N05AH04). Analyses were stratified on time: 2002-2006, 2007-2011, and 2012-2016. RESULTS: A total of 842,880 individuals purchased their first sedative drug between 2002 and 2016. Most of them (40.0%) initiated treatment between 2002 and 2006, whereas 29.2% initiated treatment in 2012-2016. In 2002-2006, anxiolytic benzodiazepines (46.4%), Z-drugs (42.8%), and hypnotic benzodiazepines (5.4%) were the most common first treatment. This pattern changed over time with a gradual increase in the use of melatonin, promethazine, and low-dose quetiapine, which in 2011-2016 accounted for 27% of all first treatments. During the five years from first prescription, around 27% shifted to a different sedative drug. This percentage increased slightly over time, but over time the first shift to another drug class was most often to a Z-drug or anxiolytic benzodiazepine. Few individuals (5.8%) had more than one shift and the third choice seemed randomly distributed across all other drug classes. CONCLUSION: Sedative drug prescriptions are distributed on different drug classes, with Z-drugs and anxiolytic benzodiazepines as the most frequent first treatment, and second choice in case of shift.

The Association of Children and Their Educational Attainment With Diabetes-related Complications and Mortality Among Older Adults With Type 2 Diabetes: A Nationwide Cohort Study.

OBJECTIVE: Socioeconomic resources and family support have been shown to improve adherence to treatment in people with type 2 diabetes (T2D) and are associated with a lower risk of diabetes-related complications and death. We investigated the associations of having children and their educational level with diabetes-related complications and death among older adults with T2D. METHODS: We included 74,588 adults who were at least 65 years of age at the time of T2D diagnosis over the period from 2000 to 2018 in Denmark and grouped them based on having children (yes [reference]/no), and their children's highest educational level (low/medium/high [reference]). Multistate models were performed with 3 states: T2D diagnosis, diabetes-related complications, and death. All models were stratified by other chronic diseases at baseline (yes/no). RESULTS: During follow-up (mean, 5.5 years), 14.6% of the adults developed a complication and 24.8% died with or without complications. Not having children was associated with a higher hazard of death without complications among adults without (hazard ratio [HR], 1.25; 95% confidence interval [CI], 1.17 to 1.33) and with (HR, 1.10; 95% CI, 1.02 to 1.18) other chronic diseases and after complications among adults without other chronic diseases (HR, 1.25; 95% CI, 1.12 to 1.38). Having children with a lower educational level was associated with a higher hazard of complications (HRlow, 1.14; 95% CI, 1.05 to 1.24; HRmedium, 1.11; 95% CI, 1.05 to 1.17), death without complications (HRlow, 1.26; 95% CI, 1.17 to 1.36; HRmedium, 1.07; 95% CI, 1.02 to 1.14), and after complications (HRlow, 1.22; 95% CI, 1.07 to 1.39) among adults without other chronic diseases. CONCLUSIONS: Among adults without other chronic diseases, having no children or having children with lower educational levels was associated with a higher hazard of death. Among these adults, having children with lower educational levels was also associated with a higher hazard of diabetes-related complications.

Depression in adulthood and risk of dementia later in life: A Danish register-based cohort study of 595,828 men.

BACKGROUND: Associations between depression and dementia could express a causal relationship, reverse causality or be explained by health-related factors. This study explores the association of depression and indicators of depression severity with subsequent risk of dementia while ensuring temporality and adjusting for important health-related factors. METHOD: 595,828 men from the Danish Conscription Database born in 1939-59 with register-based information on lifetime depression and covariates at age 55 years were followed in nationwide registers to identify dementia cases until 2016. Associations were analyzed using Cox proportional hazard regression models with adjustment for intelligence, education level, body mass index, and comorbidities. RESULTS: The dementia incidence per 1000 person-years was 1.2 cases for men without prior depression and 2.1 and 3.6 cases for men who had depression identified by antidepressants and hospitalization, respectively. Compared to no prior depression, depression identified by antidepressant medication was associated with 1.94 times [95% confidence interval (CI) 1.81;2.07] higher hazard of dementia and depression identified by hospitalization with depression was associated with 2.18 [95% CI: 1.95;2.45] higher hazard of dementia. Long-term course of depression identified by antidepressant prescriptions (>20 prescriptions), was associated with 40% 95% CI: 1.23;1.59 higher hazard of dementia compared to having ≤10 prescriptions. LIMITATIONS: This study is restricted to men and dementia cases until age 57-77 years. CONCLUSION: Men with depression before late midlife are subject to a higher risk of dementia later in life. Clinicians should be aware of dementia symptoms in patients with a long history of depression to initiate early treatment.