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Publications (5)4.35 Total impact

  • Article: Probiotic safety in pregnancy: a systematic review and meta-analysis of randomized controlled trials of Lactobacillus, Bifidobacterium, and Saccharomyces spp.
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    ABSTRACT: Our objective in this study was to review systematically the evidence for safety of Lactobacillus, Bifidobacterium and Saccharomyces spp. during pregnancy and to conduct a meta-analysis of randomized controlled trials (RCTs). Eleven databases were searched from inception to September 2007 for RCTs of probiotic use during pregnancy. Two independent reviewers searched databases. Random-effects models combined data. Eleven studies on Lactobacillus and/or Bifidobacterium examined 1505 patients for four outcomes with no data heterogeneity; no miscarriage data were reported. Five studies reported Caesarean section outcomes (OR 0.88; 95% CI 0.65 to 1.19). Six studies reported birth weight (weighted difference 45 g; 95% CI -181 to 271). Three studies reported gestational age (weighted difference 0.4 weeks; 95%CI -0.4 to 1.2). No malformations were reported in the probiotic group. No RCTs were available for Saccharomyces during pregnancy. Lactobacillus and Bifidobacterium had no effect on the incidence of Caesarean section, birth weight, or gestational age. The safety of Saccharomyces during pregnancy is unknown.
    Journal of obstetrics and gynaecology Canada: JOGC = Journal d'obstetrique et gynecologie du Canada: JOGC 07/2009; 31(6):542-52.
  • Article: Comment on: The relative dosing of epoetin alfa and darbepoetin alfa in chronic kidney disease.
    Current Medical Research and Opinion 08/2007; 23(7):1571-3; author reply 1573-4. · 2.38 Impact Factor
  • Article: Pain due to multiple sclerosis: analysis of the prevalence and economic burden in Canada.
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    ABSTRACT: Multiple sclerosis (MS) is a neurological disease affecting approximately 50,000 Canadians. Although studies have described overall MS costs, none have focused specifically on MS-related pain. To estimate the prevalence of MS-related pain in Canada, the proportion of patients treated and responding to treatment for MS-related pain, and the associated economic burden. Results were captured through physician and patient surveys. Patients were recruited through MS clinics and the MS Society. Patient-reported outcomes and resource utilization over the previous six months were collected by telephone interview. Costs were measured in 2004 Canadian dollars. The economic burden was extrapolated to the population using national demographics and prevalence. Spearman's rho assessed the relationship between cost and pain severity. Physicians estimated that 46% of their MS patients experienced MS-related pain, and that 35% received treatment for pain. Pain was reported to be relieved somewhat in 29%+/-10% of their patients, adequately in 26%+/-19% and poorly in 27%+/-13%, while 17%+/-9% received no relief. Two hundred ninety-seven participants completed the patient survey. Seventy-one per cent (211 of 297 patients) experienced MS-related pain. Eighty per cent of patients reported taking some type of medication to manage their pain, and of these, 82% reported some reduction in pain. The mean +/- SD direct cost per patient of MS-related pain was dollars 2,528+/-5,695. The mean +/- SD indirect cost per patient was dollars 669+/-875. Total costs were positively correlated with levels of self-reported pain (rho=0.291, rho<0.0001). The estimated six-month burden of pain of MS patients in Canada was dollars 79,444,888. The prevalence of pain is high in MS patients. This condition may be underdiagnosed and undertreated, and results in a significant economic burden on society.
    Pain research & management: the journal of the Canadian Pain Society = journal de la societe canadienne pour le traitement de la douleur 01/2007; 12(4):259-65. · 1.97 Impact Factor
  • Article: Consumption of antidepressants in Chile from 1992 to 2004 / Consumo de antidepresivos en Chile desde 1992 hasta 2004
    Marcela Jirón, Marcio Machado, Inés Ruiz
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    ABSTRACT: Background: Data from the Ministry of Health show that in Chile in 2004, 17% of the population had some form of depression and mood disorders are the tenth cause of disability-adjusted life years (DALY) loss. Aim: To determine comsumption of antidepressants (ADs) in Chile from 1992 to 2004. Material and methods: National sales data were obtained from the company IMS Health Chile and converted into defined daily doses (DDDs) per 1,000 inhabitants per day. Available ADs were classified in four pharmacological groups (i.e., serotonin-norepinephrine reuptake inhibitors, SNRIs: selective-serotonin reuptake inhibitors, SSRIs; tricyclic antidepressants, TCAs; and others). Total economic burden of ADs utilization and cost per DDDs were also calculated. Trends over time were analyzed using Pearson-R2. Results: Total ADs consumption in Chile measured by DDDs per 1,000 inhabitants per day (DHD) increased (y=0.901x+1.9129; R2 = 0.9296; p < 0.001) from 2.5 in 1992 to 11.7 in 2004 (total growth of 470.2%). SSRIs were the drug class with higher consumption, and fluoxetine the most commonly consumed antidepressant. SSRIs were the drugs that dominated the market representing 79% of the total drug consumption throughout the years. Total economic burden of ADs in Chile (total cost of DDDs consumed) increased from US$65.4 million in 2001 to US$74.6 million in 2004 (14% increase) Average cost per DDD of all AD increased linearly, however not significantly from US$ 0.94 in 2001 to US$ 1.04 in 2004 (y = 0.0362x+0.8784; R2 = 0.7382; p=0.262). Conclusions: DDDs per 1,000 inhabitants per day increased linearly over 470% from 1992-2004. SSRIs were the most commonly consumed drugs in Chile. Future research should evaluate the cost-effectiveness of antidepressants in Chile, comparing the results with drug utilization, and determining if unnecessary expenditures have been paid out.
  • Article: Consumo de antidepresivos en Chile entre 1992 y 2004
    Marcela Jirón, Marcio Machado, Inés Ruiz
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    ABSTRACT: Background: Data from the Ministry of Health show that in Chile in 2004, 17% of the population had some form of depression and mood disorders are the tenth cause of disability-adjusted life years (DALY) loss. Aim: To determine comsumption of antidepressants (ADs) in Chile from 1992 to 2004. Material and methods: National sales data were obtained from the company IMS Health Chile and converted into defined daily doses (DDDs) per 1,000 inhabitants per day. Available ADs were classified in four pharmacological groups (i.e., serotonin-norepinephrine reuptake inhibitors, SNRIs: selective-serotonin reuptake inhibitors, SSRIs; tricyclic antidepressants, TCAs; and others). Total economic burden of ADs utilization and cost per DDDs were also calculated. Trends over time were analyzed using Pearson-R2. Results: Total ADs consumption in Chile measured by DDDs per 1,000 inhabitants per day (DHD) increased (y=0.901x+1.9129; R2 = 0.9296; p < 0.001) from 2.5 in 1992 to 11.7 in 2004 (total growth of 470.2%). SSRIs were the drug class with higher consumption, and fluoxetine the most commonly consumed antidepressant. SSRIs were the drugs that dominated the market representing 79% of the total drug consumption throughout the years. Total economic burden of ADs in Chile (total cost of DDDs consumed) increased from US$65.4 million in 2001 to US$74.6 million in 2004 (14% increase) Average cost per DDD of all AD increased linearly, however not significantly from US$ 0.94 in 2001 to US$ 1.04 in 2004 (y = 0.0362x+0.8784; R2 = 0.7382; p=0.262). Conclusions: DDDs per 1,000 inhabitants per day increased linearly over 470% from 1992-2004. SSRIs were the most commonly consumed drugs in Chile. Future research should evaluate the cost-effectiveness of antidepressants in Chile, comparing the results with drug utilization, and determining if unnecessary expenditures have been paid out.