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Adjusted Relative Risk (adjusted + relative_risk)
Selected AbstractsGeographic variations in outcome of very low birth weight infants in ItalyACTA PAEDIATRICA, Issue 1 2007Carlo Corchia Abstract Aim: A number of social and health aspects in Italy show remarkable geographic dishomogeneity. We investigated if this phenomenon involves the outcome of very low birth-weight infants (VLBWI). Methods: This is a multi-centre nation-based survey among all Italian NICUs. The number of VLBWI admitted to each NICU in 2001 by birth-weight classes of 250 g, their inborn/outborn status and survival at discharge were registered through ad hoc questionnaires. The data were analysed for the whole country and for three geographic areas (North, Centre and South). Results: A total of 4679 VLBWI in 125 units were surveyed (0.88% of live births in Italy in 2001). The median number of infants admitted was 34 per NICU (interquartile range 16,52), without significant differences among the three geographic areas. The inborn rate was 80.7% (86.5% in the North, 83.7% in the Centre and 74.6% in the South). The mortality rate was 19.6% (15.6% in the North, 19.3% in the Centre and 23.4% in the South). Adjusted relative risk of death between Southern and Northern regions was 1.48 (95% CI 1.30,1.68), and that between outborn and inborn infants was 1.20 (95% CI 1.04,1.37). Conclusions: The differences in mortality among geographic areas suggest a state of socio-sanitary deprivation in the Southern regions, as well as different models of organisation and quality of perinatal care. [source] Ethnicity and gestational diabetes in New York City, 1995,2003BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 8 2008DA Savitz Objective, To characterise the patterns of occurrence of gestational diabetes among a wide range of ethnic groups that reside in New York City. Design, Birth records and hospital discharge data were linked to more accurately assess the risk of gestational diabetes by ethnicity, compare risk in US-born to foreign-born women, and assess time trends. Setting, New York City. Population, All singleton live births occurring between 1995 and 2003. Methods, Multivariable binomial regression analysis of ethnicity and gestational diabetes, yielding adjusted risk ratios with non-Hispanic white women as the referent. Main outcome measure, Diagnosis of gestational diabetes on birth certificate or in hospital discharge. Results, Adjusted relative risks (aRRs) were modestly elevated for African-Americans and sub-Saharan Africans and somewhat higher (<2.0) for non-Hispanic Caribbeans, Hispanic Caribbeans, Central Americans, and South Americans. The aRR was 4.7 (95% CI = 4.6,4.9) for South Central Asians (with an absolute gestational diabetes risk of 14.3%), 2.8 (95% CI = 2.7,3.0) among South-East Asian and Pacific Islanders, and 2.3 (95% CI = 2.2,2.4) among East Asians. Among South Central Asians, the greatest risks were found for women from Bangladesh (aRR = 7.1, 95% CI = 6.8,7.3). Foreign-born women consistently had higher risk than US-born women. Risk for gestational diabetes increased over time among South Central Asians, some Hispanic groups, and African-Americans. Conclusions, Risk of gestational diabetes appears to vary markedly among ethnic groups, subject to potential artefacts associated with screening and diagnosis. These differences would have direct implications for health care and may suggest aetiologic hypotheses. [source] Comparison of Nebulized Epinephrine to Albuterol in BronchiolitisACADEMIC EMERGENCY MEDICINE, Issue 4 2008Paul Walsh MB Abstract Objectives:, To compare the effect of nebulized racemic epinephrine to nebulized racemic albuterol on successful discharge from the emergency department (ED). Methods:, Children up to their 18th month of life presenting to two teaching hospital EDs with a clinical diagnosis of bronchiolitis who were ill enough to warrant treatment but did not need immediate intubation were eligible for this double-blind randomized controlled trial (RCT). Patients received either three doses of racemic albuterol or one dose of racemic epinephrine plus two saline nebulizers. Disposition was decided 2 hours after the first nebulizer. Successful discharge was defined as not requiring additional bronchodilators in the ED after study drug administration and not subsequently admitted within 72 hours. Adjusted relative risks (aRR) were estimated using the modified Poisson regression with successful discharge as the dependent variable and study drug and severity of illness as exposures. Secondary analysis was performed for patients aged less than 12 months and first presentation. Results:, The authors analyzed 703 patients; 352 patients were given albuterol and 351 epinephrine. A total of 173 in the albuterol group and 160 in the epinephrine group were successfully discharged (crude RR = 1.08, 95% confidence interval [CI] = 0.92 to 1.26). When adjusted for severity of illness, patients who received albuterol were significantly more likely than patients receiving epinephrine to be successfully discharged (aRR = 1.18, 95% CI = 1.02 to 1.36). This was also true among those with first presentation and in those less than 12 months of age. Conclusions:, In children up to the 18th month of life, ED treatment of bronchiolitis with nebulized racemic albuterol led to more successful discharges than nebulized epinephrine. [source] Survival Advantage of Pediatric Recipients of a First Kidney Transplant Among Children Awaiting Kidney TransplantationAMERICAN JOURNAL OF TRANSPLANTATION, Issue 12 2008D. L. Gillen The mortality rate in children with ESRD is substantially lower than the rate experienced by adults. However, the risk of death while awaiting kidney transplantation and the impact of transplantation on long-term survival has not been well characterized in the pediatric population. We performed a longitudinal study of 5961 patients under age 19 who were placed on the kidney transplant waiting list in the United States. Of these, 5270 received their first kidney transplant between 1990 and 2003. Survival was assessed via a time-varying nonproportional hazards model adjusted for potential confounders. Transplanted children had a lower mortality rate (13.1 deaths/1000 patient-years) compared to patients on the waiting list (17.6 deaths/1000 patient-years). Within the first 6 months of transplant, there was no significant excess in mortality compared to patients remaining on the waiting list (adjusted Relative Risk (aRR) = 1.01; p = 0.93). After 6 months, the risk of death was significantly lower: at 6,12 months (aRR = 0.37; p < 0.001) and at 30 months (aRR 0.26; p < 0.001). Compared to children who remain on the kidney transplant waiting list, those who receive a transplant have a long-term survival advantage. With the potential for unmeasured bias in this observational data, the results of the analysis should be interpreted conservatively. [source] Maintenance therapy and 3-year outcome of opioid-dependent prisoners: a prospective study in France (2003,06)ADDICTION, Issue 7 2009Jean-Noël Marzo ABSTRACT Aims To describe the profile of imprisoned opioid-dependent patients, prescriptions of maintenance therapy at imprisonment and 3-year outcome in terms of re-incarceration and mortality. Design Prospective, observational study (France, 2003,06). Setting Health units of 47 remand prisons. Participants A total of 507 opioid-dependent patients included within the first week of imprisonment between June 2003 and September 2004, inclusive. Measurements Physicians collected socio-demographic data, penal history, history of addiction, maintenance therapy and psychoactive agent use, general health status and comorbidities. Prescriptions at imprisonment were recorded by the prison pharmacist. Re-incarceration data were retrieved from the National Register of Inmates, survival data and causes of death from the National Registers of vital status and death causes. Findings Prison maintenance therapy was delivered at imprisonment to 394/507 (77.7%) patients. These patients had poorer health status, heavier opioid use and prison history and were less socially integrated than the remaining 113 patients. Over 3 years, 238/478 patients were re-incarcerated [51.3 re-incarcerations per 100 patient-years, 95% confidence interval (CI) 46.4,56.2]. Factors associated independently with re-incarceration were prior imprisonment and benzodiazepine use. After adjustment for confounders, maintenance therapy was not associated with a reduced rate of re-incarceration (adjusted relative risk 1.28, 95% CI 0.89,1.85). The all-cause mortality rate was eight per 1000 patient-years (n = 10, 95% CI 4,13). Conclusions Prescription of maintenance therapy has increased sharply in French prisons since its introduction in the mid-1990s. However, the risk of re-imprisonment or death remains high among opioid-dependent prisoners. Substantial efforts are needed to implement more effective preventive policies. [source] Longitudinal study of parental movie restriction on teen smoking and drinking in GermanyADDICTION, Issue 10 2008Reiner Hanewinkel ABSTRACT Aims To determine if adolescents who report that their parents restrict viewing movies based on rating have a lower risk of trying smoking and drinking alcohol in the future. Design Prospective observational study. A cohort of 2110 German adolescents younger than 15 years who had never smoked or drunk alcohol at baseline were surveyed 12,13 months later to determine smoking and binge drinking initiation. Risk of substance use was assessed as a function of parental restriction on viewing FSK-16 movies (movies that only those aged 16 years and over would be allowed to see in theaters). Findings The percentage of students who tried smoking was 16.3%, 10.9% initiated binge drinking and 5.0% used both substances during the follow-up period. There was a significant effect of parental movie restriction on each substance use outcome measure after controlling for covariates. Compared with adolescents whose parents never allowed them to view FSK-16 movies, the adjusted relative risk [(RR) (95% confidence interval (CI)] for use of both substances were 1.64 (1.05,2.58) for adolescents allowed to view them once in a while, 2.30 (1.53,3.45) for sometimes and 2.92 (1.83,4.67) for all the time. FSK-16 restrictions were associated with lower viewership of all classes of movies, but especially FSK-16/18 movies; in addition, FSK-16 restrictions were associated with substantially lower exposure to movie depiction of tobacco and alcohol use, suggesting a mediational mechanism for the association. Conclusions Among young adolescents, parental restriction from viewing movies rated for older adolescents/adults decreases the risk of substance use in the future. [source] Use and adherence to beta-blockers for secondary prevention of myocardial infarction: who is not getting the treatment?,PHARMACOEPIDEMIOLOGY AND DRUG SAFETY, Issue 11 2004Li Wei Abstract Purpose To characterise those who receive beta-blocker therapy after MI and to estimate the effect of adherence to beta-blocker use on subsequent mortality and recurrent MI. Methods A community-based observational cohort study was done using a record linkage database. Patients were those discharged from hospitals after their first MI between January 1994 and December 1995 and who also survived for at least 1 year. The outcome was all cause mortality and recurrent MI. Results were adjusted for age, sex, social deprivation, airways disease, peripheral vascular disease (PVD), diabetes mellitus, cardiovascular drug use, steroid use and hospitalisation for cardiovascular disease using a logistic regression model and a Cox regression model. Results A total of 865 patients were included in this study. 386 (44.6%) were on beta-blocker treatment during the year after MI. Beta-blocker use was lower amongst high-risk patients (older patients, patients with obstructive airway disease, PVD and those with a previous hospitalisation for heart failure). Mortality was lower in patients treated with beta-blockers compared with those untreated. Good adherence (,80%) was associated with a lower adjusted relative risk of mortality compared with unexposed patients (0.49, 95%CI 0.30,0.80, p,<,0.01). Within the high-risk subgroup of patients, the adjusted relative risk of mortality with good adherence was 0.40 (0.17,0.93, p,=,0.03). Conclusions Beta-blocker use was lower in older patients, patients with airways disease, PVD and heart failure, but these patients appeared to have the greatest benefit from beta-blockers. Good adherence to beta-blocker treatment after MI was associated with a lower risk of mortality. Copyright © 2004 John Wiley & Sons, Ltd. [source] Latest news and product developmentsPRESCRIBER, Issue 10 2007Article first published online: 13 SEP 200 Sitagliptin: novel drug for type 2 diabetes Sitagliptin (Januvia), the first dipeptidyl peptidase-4 (DPP-4) inhibitor, has been introduced for the treatment of type 2 diabetes in combination with metformin or a glitazone when either agent plus exercise and diet fail to control blood glucose. Inhibition of DPP-4 prevents the breakdown of incretin hormones that promote insulin release from pancreatic beta cells. In trials lasting up to 24 weeks, adding sitagliptin to established therapy reduced HbA1C by 0.67-0.90 per cent. It is contraindicated in patients with moderate or more severe renal impairment. At the recommended dose of 100mg per day, a month's treatment with sitagliptin costs £33.36. Guide to treating mentalillness in primary care A new guide from the Centre for Clinical and Academic Workforce Innovation aims to help health professionals and others treating people with mental illness. A Complete Guide to Primary Care Mental Health, a toolkit presented as a reference book and CD, covers aspects of treatment, the law and working with the voluntary sector and includes training materials compatible with evidence-based guidance. Copies are available from amazon.co.uk. Follow-up improves statin adherence Patients may take long holidays from statin treatment but a visit to the doctor is among the most effective ways to improve adherence, a US study shows (Arch Intern Med 2007;167:847,52). Observation of 239 911 patients who began statin treatment during a seven-year period showed that 54 per cent stopped their treatment for at least 90 days. Of these, 48 per cent restarted within one year and 60 per cent within two years. Factors associated with restarting treatment were a visit to the doctor who prescribed the statin (odds ratio, OR, 6.1) or a visit to a different doctor (OR 2.9). A cholesterol test and hospital admission for a cardiovascular event were also significant factors. Pharmacist MUR does not reduce heart failure deaths Medication review by trained community pharmacists does not reduce admissions or deaths among patients with heart failure, according to a study from East Anglia (BMJ online: 23 April 2007; doi:10.1136/bmj.39164.568183.AE). Patients admitted as emergencies with heart failure were randomised to usual care or two home visits by a community pharmacist within two and eight weeks after discharge. Pharmacists reviewed medication and advised on self-management of symptoms and lifestyle. There were no significant differences in hospital admissions over the next six months (rate ratio 1.15 for pharmacist vs control) or deaths (rate ratio 1.18); quality of life scores were similar in the two groups. The authors speculate that the interventions may have been too brief or too late (lifestyle changes having been made already), or disadvantaged by not adjusting beta-blocker doses. A Cardiff study of pharmacist medication reviews for elderly patients (BMJ online: 20 April 2007; doi:10.1136/bmj.39171. 577106.55), found that their advice had the potential to undermine patients' ,confidence, integrity and self-governanc'. The study found that pharmacists gave advice unnecessarily and uninvited. CHD targets met early The national programme to tackle heart disease has made substantial progress towards it targets, the Department of Health says in a 10-year report, and a 40 per cent cut in mortality will be achieved ahead of the deadline of 2010. Coronary Heart Disease Ten Years On: Improving Heart Care, a report by Professor Roger Boyle, National Director for Heart Disease and Stroke, states that 7 per cent of the population is now taking statins, resulting in 9700 deaths avoided annually. The prevalence of untreated hypertension fell from 32 to 24 per cent between 1998 and 2003. The report also summarises changes in service delivery, nutrition and smoking cessation. HRT: ovarian cancer risk The MHRA has not altered its advice on the use of HRT following news that five years' use increases ovarian cancer risk in women over 50. The Million Women Study revealed an approximately 20 per cent increased risk of ovarian cancer or death among women still using HRT after five or more years. There was no difference in risk between oestrogen-only and combined formulations. The MHRA says HRT is still indicated for relieving symptoms of the menopause for short-term use; as an alternative for women over 50 who cannot take other treatments to prevent osteoporosis, or when such options fail; and in women under 50 who experience a premature menopause. Poor angina treatment Over half of patients with angina continue to experience attacks despite treatment, according to a survey by the British Cardiac Patients Association. The survey of 600 patients with angina also found that twot-hirds of respondents reported that angina had a moderate to severe impact on their lives. Half said that the adverse effects of their treatment negatively affected their work, two-thirds reported an adverse impact on sex, and almost three-quarters of patients taking beta-blockers reported fatigue. A second survey of 2000 adults revealed widespread ignorance about the prevalence and symptoms of angina. The surveys were sponsored by Servier Laboratories Limited and conducted in collaboration with Research Quorum. Cabergoline restriction Indications for the dopamine agonist cabergoline (Cabaser) are being restricted to match those of pergolide (Celance), the MHRA has announced. Pergolide was recently withdrawn in the United States and its use in the EU is limited because of the risk of cardiac valvular damage. Similar toxicity has been reported with cabergolide, which is now restricted to second-line use when a nonergot treatment for Parkinson's disease has failed. It is contraindicated in patients with valvular damage or a history of fibrotic disorders and requires patient monitoring. Sodium reduction cuts CV events Long-term reduction in dietary sodium may reduce cardiovascular events by 25 per cent, US epidemiologists say (BMJ online: 20 April 2007; doi:10.1136/bmj.39147.604896.55). Participants in the two Trials of Hypertension Prevention (TOHP I and II) reduced their sodium intake by 44 and 33mmol per 24hr. After 10,15 years' follow-up of 2415 participants, the adjusted relative risk of cardiovascular events was 0.75 compared with controls. There was a nonsignificant 20 per cent reduction in mortality. Copyright © 2007 Wiley Interface Ltd [source] Vascular cell adhesion molecule 1 as a predictor of severe osteoarthritis of the hip and knee jointsARTHRITIS & RHEUMATISM, Issue 8 2009Georg Schett Objective Osteoarthritis (OA) is a leading cause of pain and physical disability in middle-aged and older individuals. We undertook this study to determine predictors of the development of severe OA, apart from age and overweight. Methods Joint replacement surgery due to severe hip or knee OA was recorded over a 15-year period in the prospective Bruneck cohort study. Demographic characteristics and lifestyle and biochemical variables, including the level of soluble vascular cell adhesion molecule 1 (VCAM-1), were assessed at the 1990 baseline visit and tested as predictors of joint replacement surgery. Results Between 1990 and 2005, hip or knee joint replacement due to OA was performed in 60 subjects. VCAM-1 level emerged as a highly significant predictor of the risk of joint replacement surgery. Intervention rates were 1.9, 4.2, and 10.1 per 1,000 person-years in the first, second, and third tertiles, of the VCAM-1 level, respectively. In multivariable logistic regression analysis, the adjusted relative risk of joint replacement surgery in the highest versus the lowest tertile group of VCAM-1 level was 3.9 (95% confidence interval 1.7,8.7) (P < 0.001). Findings were robust in various sensitivity analyses and were consistent in subgroups. Addition of the VCAM-1 level to a risk model already including age, sex, and body mass index resulted in significant gains in model discrimination (C statistic) and calibration and in more accurate risk classification of individual participants. Conclusion The level of soluble VCAM-1 emerged as a strong and independent predictor of the risk of hip and knee joint replacement due to severe OA. If our findings can be reproduced in other epidemiologic cohorts, they will assist in routine risk classification and will contribute to a better understanding of the etiology of OA. [source] Recurrence of breech presentation in consecutive pregnanciesBJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 7 2010JB Ford Please cite this paper as: Ford J, Roberts C, Nassar N, Giles W, Morris J. Recurrence of breech presentation in consecutive pregnancies. BJOG 2010;117:830,836. Objective, To investigate the recurrence risk of breech presentation at term, and to assess the risk factors that contribute to its recurrence. Design, Cohort study. Setting, New South Wales, Australia. Population, Women with their first two (n = 113 854) and first three (n = 21 690) consecutive singleton term pregnancies, in the period 1994,2002. Methods, Descriptive statistics including rates, relative risks and adjusted relative risks, as determined from logistic regression and Poisson analyses. Main outcome measures, Rates and risks of occurrence and recurrence of breech presentation at birth in each pregnancy, and maternal and infant risk factors associated with breech recurrence. Results, First-time breech presentation at term occurred in 4.2% of first pregnancy deliveries, 2.2% of second pregnancies and 1.9% of third pregnancies. The rate of breech recurrence in a second consecutive pregnancy was 9.9%, and in a third consecutive pregnancy (after two prior breech deliveries) was 27.5%. The relative risk of breech recurrence in a second pregnancy was 3.2 (95% CI 2.8,3.6), and in a third consecutive breech pregnancy was 13.9 (95% CI 8.8,22.1). First pregnancy factors associated with recurrence included placenta praevia [adjusted relative risk (aRR) 2.2; 95% CI 1.3,3.7], maternal diabetes (aRR 1.4; 95% CI 1.0,2.1) and a maternal age of ,35 years (aRR 1.2; 95% CI 0.9,1.6). Second pregnancy factors included birth defects (aRR 2.5; 95% CI 1.4,4.2), placenta praevia (aRR 2.5; 95% CI 1.5,4.1) and a female infant (aRR 1.2; 95% CI 1.0,1.5). Conclusions, The increased recurrence risk of breech presentations suggests that women with a history of breech delivery should be closely monitored in the latter stages of pregnancy. [source] Prospective Study of Alcohol Consumption in the United States: Quantity, Frequency, and Cause-Specific MortalityALCOHOLISM, Issue 3 2008Rosalind A. Breslow Background:, Alcohol average volume (quantity multiplied by frequency) has been associated with mortality in drinkers. However, average volume may mask associations due to quantity or frequency alone. Methods:, We prospectively assessed relationships between alcohol quantity and frequency, and mortality from all-causes, cardiovascular disease, cancer, and other-causes in a cohort created by linking the 1988 National Health Interview Survey (response rate 87%) to the National Death Index through 2002. Participants were 20,765 current drinkers age , 18 years. At 14-year follow-up 2,547 had died. Results:, For quantity, among men who consumed ,5 drinks (compared to 1 drink) on drinking days, adjusted relative risks (RR) of mortality were: for cardiovascular disease, 1.30 [95% confidence interval (CI) 0.96,1.75; p for linear trend (p -trend) = 0.0295], for cancer, 1.53 (95% CI 1.11,2.09; p -trend = 0.0026), and for other-causes, 1.42 (95% CI 1.08,1.87; p -trend = 0.0029); among women for other-causes, 2.88 (95% CI 1.61,5.12; p -trend = 0.0010). For frequency, among men in the highest frequency quartile (compared to the lowest), RR were: for cardiovascular disease, 0.79 (95% CI 0.63,0.99; p -trend = 0.0330), for cancer, 1.23 (95% CI 0.95,1.59; p -trend = 0.0461), and for other-causes, 1.30 (95% CI 1.01,1.67; p -trend = 0.0070); among women, for cancer, 1.65 (95% CI 1.12,2.45, p -trend = 0.0031). Average volume obscured effects of quantity alone and frequency alone, particularly for cardiovascular disease in men where quantity and frequency trended in opposite directions. Conclusions:, Alcohol quantity and frequency were independently associated with cause-specific mortality. Accumulating evidence of their differential effects may, in the future, be useful for clinical and public health recommendations. [source] Perinatal mortality and morbidity in a nationwide cohort of 529 688 low-risk planned home and hospital birthsBJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 9 2009A De Jonge Objective, To compare perinatal mortality and severe perinatal morbidity between planned home and planned hospital births, among low-risk women who started their labour in primary care. Design, A nationwide cohort study. Setting, The entire Netherlands. Population, A total of 529 688 low-risk women who were in primary midwife-led care at the onset of labour. Of these, 321 307 (60.7%) intended to give birth at home, 163 261 (30.8%) planned to give birth in hospital and for 45 120 (8.5%), the intended place of birth was unknown. Methods, Analysis of national perinatal and neonatal registration data, over a period of 7 years. Logistic regression analysis was used to control for differences in baseline characteristics. Main outcome measures, Intrapartum death, intrapartum and neonatal death within 24 hours after birth, intrapartum and neonatal death within 7 days and neonatal admission to an intensive care unit. Results, No significant differences were found between planned home and planned hospital birth (adjusted relative risks and 95% confidence intervals: intrapartum death 0.97 (0.69 to 1.37), intrapartum death and neonatal death during the first 24 hours 1.02 (0.77 to 1.36), intrapartum death and neonatal death up to 7 days 1.00 (0.78 to 1.27), admission to neonatal intensive care unit 1.00 (0.86 to 1.16). Conclusions, This study shows that planning a home birth does not increase the risks of perinatal mortality and severe perinatal morbidity among low-risk women, provided the maternity care system facilitates this choice through the availability of well-trained midwives and through a good transportation and referral system. [source] Statins and the risk of idiopathic venous thromboembolismBRITISH JOURNAL OF CLINICAL PHARMACOLOGY, Issue 1 2002Chen-Chang Yang Aims, To evaluate the association between current statin use and the risk of idiopathic venous thromboembolism (VTE). Methods, A population-based retrospective follow-up with a nested case-control analysis using the General Practice Research Database. Results, There were 72 cases of idiopathic VTE. Using normolipidaemic nonuse as the reference group, the adjusted relative risks for idiopathic VTE for current/recent statin use, past statin use, past other lipid-lowering drug use, and hyperlipidaemic nonuse were 0.8 (0.3, 2.7), 2.4 (0.6, 10.0), 1.8 (0.4, 7.4), and 0.9 (0.4, 2.0) in the follow-up analysis, and were 1.1 (0.3, 4.3), 3.7 (0.6, 24.1), 2.0 (0.3, 11.6), and 0.4 (0.2, 1.2) in the case-control analysis. Conclusions, Current statin use was not associated with a reduced risk of idiopathic VTE. [source] |