Prevalence and Associated Factors of Benzodiazepine Use in Patients Attending a Community Mental Health Team in Scotland: A Cross-Sectional Survey

Benzodiazepine Use Among Patients With Schizophrenia in Taiwan: A Nationwide Population-Based Survey

There have been no data about long-term benzodiazepine (BZD) use and its correlates in patients with major depressive disorder (MDD) in China. This study aimed to examine the prevalence of long-term BZD use (more than three months) and its demographic and clinical correlates in Chinese patients with MDD. A total of 1,192 patients with MDD were examined in 10 mental health centers in China. Patients' socio-demographic and clinical characteristics and prescriptions for psychotropic drugs were recorded using a standardized form. A large portion of patients (36.2%) received long-term BZD treatment. Univariate analyses revealed that long-term BZD users were older, poorer, and had more impaired occupational functioning than patients not taking BZDs. Long-term BZD users had fewer psychotic symptoms and took less antipsychotic drugs. In multivariate analyses, long-term BZD use was independently associated with older age and more severe impaired occupational functioning; long-term BZD users were less likely to receive antipsychotic medications and traditional antidepressants (tricyclic antidepressants, tetracyclic antidepressant, and monoamine oxidase inhibitors). Long-term BZD use was common in patients with MDD in China. A host of demographic and clinical factors were independently associated with long-term BZD use.

Five-Year Trajectories of Long-Term Benzodiazepine Use by Adolescents: Patient, Provider, and Medication Factors

Although concern exists regarding the rate of benzodiazepine use, especially long-term use by older adults, little information is available concerning patterns of benzodiazepine use in the United States. To describe benzodiazepine prescription patterns in the United States focusing on patient age and duration of use. A retrospective descriptive analysis of benzodiazepine prescriptions was performed with the 2008 LifeLink LRx Longitudinal Prescription database (IMS Health Inc), which includes approximately 60% of all retail pharmacies in the United States. Denominators were adjusted to generalize estimates to the US population. The percentage of adults filling 1 or more benzodiazepine prescriptions during the study year by sex and age group (18-35 years, 36-50 years, 51-64 years, and 65-80 years) and among individuals receiving benzodiazepines, the corresponding percentages with long-term (≥120 days) benzodiazepine use, prescription of a long-acting benzodiazepine, and benzodiazepine prescriptions from a psychiatrist. In 2008, approximately 5.2% of US adults aged 18 to 80 years used benzodiazepines. The percentage who used benzodiazepines increased with age from 2.6% (18-35 years) to 5.4% (36-50 years) to 7.4% (51-64 years) to 8.7% (65-80 years). Benzodiazepine use was nearly twice as prevalent in women as men. The proportion of benzodiazepine use that was long term increased with age from 14.7% (18-35 years) to 31.4% (65-80 years), while the proportion that received a benzodiazepine prescription from a psychiatrist decreased with age from 15.0% (18-35 years) to 5.7% (65-80 years). In all age groups, roughly one-quarter of individuals receiving benzodiazepine involved long-acting benzodiazepine use. Despite cautions concerning risks associated with long-term benzodiazepine use, especially in older patients, long-term benzodiazepine use remains common in this age group. More vigorous clinical interventions supporting judicious benzodiazepine use may be needed to decrease rates of long-term benzodiazepine use in older adults.

Long-term use of benzodiazepines: Definitions, prevalence and usage patterns – a systematic review of register-based studies

Further evidence that ventricular enlargement may be mediated by pregnancy and birth complications in schizophrenia

Patterns of benzodiazepines use in primary care adults with anxiety disorders

Recommendations for benzodiazepine (BZD) use suggest durations of no more than a few weeks, but studies report use for months, years, or even decades. This article examines the who (who are long-term users), why (why do they use BZD), what (what are patterns of long-term use) and how (how do they compare to all BZD users). The study population is from the National Population Health Survey in Canada which interviewed respondents four times at two-year intervals, asking about specific drugs use as well as demographic, lifestyle and health-related questions. Long-term BZD use was defined as BZD use for two successive cycles. Four percent of the Canadian population used BZD at any one time, half of whom also reported use in the previous cycle. Benzodiazepine users were more likely to be female, elderly, smokers, to prefer speaking a language other than English, to have insurance coverage for medication, and to have completed high school education. Almost none of these determinants predicted long-term use. Persons reporting BZD use in 2000 had an odds ratio (OR) of 38.6 for also using BZD in 1998, were more likely to use antidepressants (OR?=?8.5) and suffer from conditions such as poor health, stress, and pain. Most of these determinants had no association with long-term use or if they did at a considerably lower OR. Of the 395 BZD users in 2000, almost 48.4% also used BZD in the previous cycle and 17% in all three previous cycles. Benzodiazepine use in any previous cycle made BZD use in 2000 more likely, with use determined by how recent and the frequency of reported use, culminating in a very high OR of 83.3 for use in all three previous cycles. Continued use for any of the individual BZD tended to be largely for the same BZD. We conclude that: (1) the overriding determinant for BZD use was that of previous use; and (2) long-term use was not determined by the same factors as overall use, which is significant in developing approaches to dealing with long-term BZD use.

Socio-demographic factors and long-term use of benzodiazepines in patients with depression, anxiety or insomnia

Predictive modeling of long-term opioid and benzodiazepine use after intradural tumor resection

Postoperative delirium (POD) is a common acute neurocognitive disorder characterised by sudden changes in mental status, including altered alertness, consciousness and cognition, and usually occurs in elderly patients. There is an urgent need to identify predictors of POD to prevent its onset, as it can significantly delay recovery from surgery. Benzodiazepines are among the most frequently prescribed medications, particularly for female individuals. They have a depressant effect on the central nervous system and are used to treat sleep disorders, anxiety, muscle relaxation and epilepsy. However, benzodiazepines may increase the risk of POD. We sought to investigate whether long-term benzodiazepine use, premedication and the interaction of benzodiazepines with sex are associated with the occurrence of POD and postoperative neurocognitive ability. A part analysis of the prospective multicentre BioCog cohort study. Two-centre study conducted at Charité - Universitätsmedizin Berlin (Germany) and University Hospital Utrecht (Netherlands), both primary care hospitals, between October 2014 and September 2019. Data from 928 patients from the BioCog cohort study who underwent elective surgery were analysed. Of these, 42.3% were women, 18.6% reported long-term benzodiazepine use and 12.4% received premedication with benzodiazepines. We studied the association of benzodiazepine use on cognition and the development of POD. We found that the timing of benzodiazepine use was crucial. Long-term benzodiazepine use was significantly associated with the risk of developing POD, independent of sex ( P < 0.001). In contrast, premedication with benzodiazepines immediately before surgery was not associated with the risk of POD ( P = 0.242). males and females developed POD at similar rates. Regardless of sex, long-term benzodiazepine use elevated the risk of POD, unlike premedication with benzodiazepines. Long-term use of benzodiazepines is associated with the development of POD, but short-term use as a premedicant is not. However, as this is an observational study, further research is needed to confirm these findings in a controlled setting. The study was registered at clinicaltrials.gov (NCT02265263).

The proportion of patients who develop long-term benzodiazepine use remains controversial, as do the length of time before long-term use develops and the factors associated with long-term use. To investigate the incidence of long-term benzodiazepine and related drug (BZDR) use and factors associated with the development of long-term use implementing a follow-up design with new BZDR users. This population-based cohort study used a nationwide cohort of 129 732 new BZDR users in Finland. New users of BZDRs aged 18 years or older were identified from the prescription register maintained by the Social Insurance Institution of Finland as individuals who initiated BZDR use during 2006 and had not used BZDRs from 2004 to 2005. The follow-up continued until death, long-term hospitalization, a gap of 2 years in BZDR use, or December 31, 2015. The population was analyzed according to age at treatment initiation, categorized into younger (<65 years) and older (≥65 years) subcohorts. Analyses were conducted from May 2019 to February 2020. Use of BZDRs, modeled from register-based data using the PRE2DUP (from prescriptions to drug use periods) method. Long-term BZDR use, defined as continuous use of 180 days or longer, and factors associated with long-term vs short-term use, compared using Cox proportional hazards models. Among the 129 732 incident BZDR users, the mean (SD) age was 52.6 (17.7) years, and 78 017 (60.1%) individuals were women. During the follow-up period, 51 099 BZDR users (39.4%) became long-term users. Long-term treatment was more common in the older subcohort (19 103 individuals [54.5%]) than the younger subcohort (31 996 individuals [33.8%]). At 6 months, 28 586 individuals (22.0%) had become long-term users: 11 805 (33.7%) in the older subcohort and 16 781 (17.7%) in the younger subcohort. The largest proportions of initiators who became long-term users were those persons who initiated treatment with nitrazepam (76.4%; 95% CI, 73.6%-79.1%), temazepam (63.9%; 95% CI, 62.9%-65.0%), lorazepam (62.4%; 95% CI, 59.7%-65.1%), or clonazepam (57.5%; 95% CI, 55.9%-59.2%). Factors associated with the development of long-term use included male sex, older age, receipt of social benefits, psychiatric comorbidities, and substance abuse. The findings of this population-based cohort study conducted in Finland suggest that the incidence of subsequent long-term BZDR use in individuals who initiate use of BZDRs is high, especially among older persons, and that the specific BZDR used initially is associated with the development of long-term BZDR use and should be carefully considered when prescribing BZDRs. The observed factors that appear to be associated with development of long-term BZDR use also should be considered in clinical decision-making when starting and monitoring BZDR treatment.

The association between preoperative benzodiazepine use and long-term postoperative outcomes is not well understood. To characterize the association between preoperative benzodiazepine use and postoperative opioid use and health care costs. In this cohort study, retrospective analysis of private health insurance claims data on 946 561 opioid-naive patients (no opioid prescriptions filled in the year before surgery) throughout the US was conducted. Patients underwent 1 of 11 common surgical procedures between January 1, 2004, and December 31, 2016; data analysis was performed January 9, 2020. Benzodiazepine use, defined as long term (≥10 prescriptions filled or ≥120 days supplied in the year before surgery) or intermittent (any use not meeting the criteria for long term). The primary outcome was opioid use 91 to 365 days after surgery. Secondary outcomes included opioid use 0 to 90 days after surgery and health care costs 0 to 30 days after surgery. In this sample of 946 561 patients, the mean age was 59.8 years (range, 18-89 years); 615 065 were women (65.0%). Of these, 23 484 patients (2.5%) met the criteria for long-term preoperative benzodiazepine use and 47 669 patients (5.0%) met the criteria for intermittent use. After adjusting for confounders, long-term (odds ratio [OR], 1.59; 95% CI, 1.54-1.65; P < .001) and intermittent (OR, 1.47; 95% CI, 1.44-1.51; P < .001) benzodiazepine use were associated with an increased probability of any opioid use during postoperative days 91 to 365. For patients who used opioids in postoperative days 91 to 365, long-term benzodiazepine use was associated with a 44% increase in opioid dose (additional 0.6 mean daily morphine milligram equivalents [MMEs]; 95% CI, 0.3-0.8 MMEs; P < .001), although intermittent benzodiazepine use was not significantly different (0.0 average daily MMEs; 95% CI, -0.2 to 0.2 MMEs; P = .65). Preoperative benzodiazepine use was also associated with increased opioid use in postoperative days 0 to 90 for both long-term (32% increase, additional 1.9 average daily MMEs; 95% CI, 1.6-2.1 MMEs; P < .001) and intermittent (9% increase, additional 0.5 average daily MMEs; 95% CI, 0.4-0.6 MMEs; P < .001) users. Intermittent benzodiazepine use was associated with an increase in 30-day health care costs ($1155; 95% CI, $938-$1372; P < .001), while no significant difference was observed for long-term benzodiazepine use. The findings of this study suggest that, among opioid-naive patients, preoperative benzodiazepine use may be associated with an increased risk of developing long-term opioid use and increased opioid dosages postoperatively, and also may be associated with increased health care costs.

Long-term benzodiazepine (BDZ) use and dependence affect cognitive functioning adversely and partly irreversibly. Emerging evidence suggests that pregabalin (PGB) might be a safe and efficacious treatment of long-term BDZ use. The aim of the present study was to investigate the changes in several core cognitive functions after successful treatment of long-term BDZ use and dependence with PGB. Fourteen patients with long-term BDZ use (mean duration >15 years) underwent neuropsychological assessment with the mini-mental state examination and four tests from the Cambridge Neuropsychological Test Automated Battery (CANTAB) battery before the initiation of PGB treatment and at a two months follow-up after the cessation of BDZs. Patients' CANTAB percentile score distributions were compared with normative CANTAB data. Patients improved on cognitive measures of global cognitive functioning, time orientation, psychomotor speed, and visuospatial memory and learning with strong effect sizes. By contrast, they failed to improve on measures of attentional flexibility. Despite their significant improvement, patients' scores on most tests remained still at the lower percentiles of CANTAB normative scores. Although preliminary, our findings suggest that successful treatment of long-term BDZ use with PGB is associated with a substantial, though only partial, recovery of BDZ-compromised neuropsychological functioning, at least at a 2-month follow-up.

Benzodiazepines have been prescribed for short periods to patients with depression who are beginning antidepressant therapy to improve depressive symptoms more quickly, mitigate concomitant anxiety, and improve antidepressant treatment continuation. However, benzodiazepine therapy is associated with risks, including dependency, which may take only a few weeks to develop. To examine trends in simultaneous benzodiazepine and antidepressant new use among adults with depression initiating an antidepressant, assess antidepressant treatment length by simultaneous new use status, estimate subsequent long-term benzodiazepine use in those with simultaneous antidepressant and benzodiazepine new use, and identify determinants of simultaneous new use and long-term benzodiazepine use. This cohort study using a US commercial claims database included commercially insured adults (aged 18-64 years) from January 1, 2001, through December 31, 2014, with a recent depression diagnosis who began antidepressant therapy but had not used antidepressants or benzodiazepines in the prior year. Simultaneous new use, defined as a new benzodiazepine prescription dispensed on the same day as a new antidepressant prescription. The proportion of antidepressant initiators with simultaneous new use and continuing antidepressant treatment for 6 months and the proportion of simultaneous new users receiving long-term (6-months) benzodiazepine therapy. Of the 765 130 adults (median age, 39 years; interquartile range, 29-49 years; 507 451 women [66.3%]) who initiated antidepressant treatment, 81 020 (10.6%) also initiated benzodiazepine treatment. The mean annual increase in the proportion simultaneously starting use of both agents from 2001 to 2014 was 0.49% (95% CI, 0.47%-0.51%), increasing from 6.1% (95% CI, 5.5%-6.6%) in 2001 to 12.5% (95% CI, 12.3%-12.7%) in 2012 and stabilizing through 2014 (11.3%; 95% CI, 11.1%-11.5%). Similar findings were apparent by age group and physician type. Antidepressant treatment length was similar in simultaneous new users and non-simultaneous new users. Among simultaneous new users, 12.3% (95% CI, 12.0%-12.5%) exhibited long-term benzodiazepine use (64.0% discontinued taking benzodiazepines after the initial fill). Determinants of long-term benzodiazepine use after simultaneous new use were longer initial benzodiazepine days' supply, first prescription for a long-acting benzodiazepine, and recent prescription opioid fills. One-tenth of antidepressant initiators with depression simultaneously initiated benzodiazepine therapy. No meaningful difference in antidepressant treatment at 6 months was observed by simultaneous new use status. Because of the risks associated with benzodiazepines, simultaneous new use at antidepressant initiation and the benzodiazepine regimen itself require careful consideration.