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Persistence Rates (persistence + rate)
Selected AbstractsLong-term outcome of pediatric obsessive,compulsive disorder: a meta-analysis and qualitative review of the literatureACTA PSYCHIATRICA SCANDINAVICA, Issue 1 2004S. E. Stewart Objective:, To review the extant literature on the long-term outcome of child/adolescent-onset obsessive,compulsive disorder (OCD). Method:, Medline and Psychlit databases were systematically searched for articles regarding long-term outcomes of child/adolescent-onset OCD. Meta-analysis regression was applied to evaluate predictors and persistence of OCD. Results:, Sixteen study samples (n = 6,132; total = 521 participants) in 22 studies had follow-up periods ranging between 1 and 15.6 years. Pooled mean persistence rates were 41% for full OCD and 60% for full or subthreshold OCD. Earlier age of OCD onset (z = ,3.26, P = 0.001), increased OCD duration (z = 2.22, P = 0.027) and in-patient vs. out-patient status (z = 2.94, P = 0.003) predicted greater persistence. Comorbid psychiatric illness and poor initial treatment response were poor prognostic factors. Although psychosocial function was frequently compromised, most studies lacked comprehensive outcome measures. Conclusion:, Long-term persistence of pediatric OCD may be lower than believed. Future studies should include broader measures of outcome including symptomatic persistence and functional impairment in multiple domains. [source] Use of arboreal and terrestrial space by a small mammal community in a tropical rain forest in Borneo, MalaysiaJOURNAL OF BIOGEOGRAPHY, Issue 4 2004Konstans Wells Abstract Aim, Small mammals were live-trapped in a primary rain forest to evaluate the relative distribution of species to each other and to microhabitat properties on the ground and in the canopy. Location, Kinabalu National Park in Borneo, Sabah, Malaysia. Methods, Seven trapping sessions were conducted along two grids with 31 trap points at distances of 20 m on the ground and in the lower canopy at an average height of 13.5 m. Results, Species diversity and abundance of small mammals proved to be high: 20 species of the families Muridae, Sciuridae, Tupaiidae, Hystricidae, Viverridae and Lorisidae were trapped, with murids being dominant in both habitat layers. The terrestrial community was significantly more diverse with 16 captured species (Shannon,Wiener's diversity index = 2.47), while 11 species were trapped in the canopy ( = 1.59). The Whitehead's rat, Maxomys whiteheadi, and the red spiny rat, Maxomys surifer, dominated the terrestrial community whereas the large pencil-tailed tree mouse, Chiropodomys major, was by far the most abundant species in the canopy. Other abundant species of the canopy community, the dark-tailed tree rat, Niviventer cremoriventer, and the lesser treeshrew, Tupaia minor, were also abundant on the ground, and there was no clear boundary between arboreal and terrestrial species occurrences. Main conclusions, As most species were not confined to specific microhabitats or habitat layers, species seemed to rely on resources not necessarily restricted to certain microhabitats or habitat layers, and separation of species probably resulted mainly from a species' concentrated activity in a preferred microhabitat rather than from principal adaptations to certain habitats. Ecological segregation was stronger in the more diverse terrestrial community, though microhabitat selection was generally not sufficient to explain the co-occurrences of species and the variability between local species assemblages. Constraints on small mammal foraging efficiency in the three-dimensional more complex canopy may be responsible for the similarity of microhabitat use of all common arboreal species. Community composition was characterized by mobile species with low persistence rates, resulting in a high degree of variability in local species assemblages with similar turnover rates in both habitats. [source] Divalproex sodium vs. valproic acid: drug utilization patterns, persistence rates and predictors of hospitalization among VA patients diagnosed with bipolar disorderJOURNAL OF CLINICAL PHARMACY & THERAPEUTICS, Issue 6 2007S. U. Iqbal MBA MPH MD Summary Objectives:, To compare divalproex sodium and valproic acid for therapeutic patterns, persistence rates and predictors of hospitalization among bipolar patients on monotherapy in the Veterans Affairs (VA) healthcare system. Methods:, Using VA administrative data bases, we conducted a retrospective inception cohort study of VA patients', 18 years of age who had at least one outpatient diagnoses of bipolar disorder and two continuous prescription records for the study drugs in the VA PBM pharmacy database during the study period of 1st April 2001 to 30th September 2003. Persistence for the comparative drugs was reported as continuous variable and compared using t -tests. Logistic regression models were used to examine the risk of hospitalization whereas Cox proportional hazard regression models were used to evaluate the time to hospitalization and time to interruption of therapy for the two drug groups. Results:, We identified 4624 bipolar patients on monotherapy with valproic acid (n = 4036) and divalproex sodium (n = 588) during the study period. The descriptive statistics included sociodemographics, disability and comorbidity status and were similar for the two groups. For the crude persistence rates there were no statistically significant differences between divalproex sodium (120 days) and valproic acid (110 days). The logistic regression model for risk of hospitalization showed no statistically significant difference between the two comparators [odds ratio = 1·06, 95% confidence interval (CI) = 0·787,1·444]. The Cox model for time to interruption of therapy showed an insignificant hazard ratio (HR) for divalproex sodium vs. valproic acid (HR = 0·928, 95% CI = 0·844,1·020) and for time to hospitalization also no statistically significant difference in the HR for the two drugs (HR = 0·984, 95% CI = 0·784,1·295). Conclusion:, The study showed a comparable profile of generic valproic acid with divalproex sodium for persistence and predictors of hospitalization for bipolar patients on monotherapy in the VA. Results have important healthcare implications for treatment and costs. [source] Treatment with inhaled corticosteroids in asthma is too often discontinued,PHARMACOEPIDEMIOLOGY AND DRUG SAFETY, Issue 4 2008Nancy S. Breekveldt-Postma PhD Abstract Purpose To study persistence with inhaled corticosteroids (ICS) and its determinants in asthma-patients. Methods From the PHARMO database, asthma-patients (age,<,35 years) with a first dispensing for ICS in 1999,2002 and,,,2 dispensings in the first year were included. Persistence during the first year was defined as the number of days from start to time of first failure to continue renewal of the initial ICS. Potential determinants of persistence were assessed at ICS-start and 1 year before. Results The study-cohort included 5563 new users of single ICS and 297 of fixed-combined ICS. Less than 10% of patients using single ICS and 15% of patients using fixed-combined ICS were persistent at 1 year. Similar persistence-rates were observed when stratified for age (children/adolescents: 0,18 years and adults: 19,34 years). Increased persistence with single ICS was observed with the type of ICS (budesonide), prescriber (specialist), prior use of long-acting beta-agonists, previous hospitalization for asthma, metered-dose inhaler, low starting-dose and once-daily dosing regimen at start. Persistence with fixed combined ICS-treatment increased with younger age and was decreased in patients having high starting-dose of ICS and prior use of antibiotics. Conclusion New users of both single and fixed combined ICS have alarming low persistence rates with ICS-treatment in the first year of follow-up. Persistence was mainly related to patient factors, such as severity of disease, and to treatment-related factors, such as once-daily dosing frequency. Copyright © 2008 John Wiley & Sons, Ltd. [source] | ||||||||||