Publications by authors named "Norman Maldonado"

The Colombian health system has made a deep transition into managed competition since a major reform in 1993. A market for insurers was created, the consumer has free choice of insurer and a national-level equalisation fund distributes revenues via a per-capita payment. Fully subsidised insurance for the poor and informal, and a comprehensive standardised benefit package for subsidised and contributory schemes (both schemes covering 98 per cent of the population), has led to a low level of out-of-pocket expenses and high financial protection, as well as to reduced gaps in equity in access.

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Background: This paper estimates spatial inequalities of Rheumatoid Arthritis (RA) in Colombia and explores correlates of those disparities from a health system perspective.

Methods: We apply descriptive epidemiology to healthcare administrative records for estimation of crude and age-standardized prevalences, and health systems thinking for identification of barriers to effective access in RA diagnosis.

Results: The crude and age-standardized RA prevalence for Colombia in 2018 is estimated at 0.

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Objective: Estimate economic and health benefits, by sex and income quintile, of tax-based cigarette price increases in Mexico.

Methods: An extended cost-effectiveness analysis (ECEA) model was used to estimate distributional benefits for women and men in the scenario of a 44% increase in the price of cigarettes (from 56.4 Mexican pesos [MX$] to MX$81.

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Introduction: Taxes on tobacco products are an efficient way of reducing consumption. However, they are only effective if passed on to consumers with higher prices. This study aims to examine tobacco industry (TI) pricing strategies in response to tax increases, and whether they differ by price segments or presentation (packs or individual sticks) in Colombia.

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Tobacco taxes are a well-established cost-effective policy to prevent Noncommunicable Diseases. This paper evaluates the expected effects of a tobacco tax increase on the Sustainable Development Goals in Colombia. We use microsimulation to build an artificial society that mimics the observed characteristics of Colombia's population, and from there we simulate the behavioral response to a tax increase of COP$4,750 (an increase that has been discussed by policy makers and legislators) and the subsequent effects in all SDGs.

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Background: Several studies have shown the beneficial effects of tobacco fiscal policy, but distributional effects have been less examined, especially at the subnational level. The objective of this study is to analyse the distributional effects of a one-peso tobacco tax increase (roughly equivalent to tripling the current excise tax) on health, poverty, and financial outcomes at the subnational level in Mexico.

Methods: We employ an extended cost-effectiveness analysis that estimates life-years gained, smoking attributable deaths averted, treatment costs averted, number of persons avoiding poverty and catastrophic health expenditures, and additional tax revenues by income group across five regions.

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This paper estimates the short-term impact of a twofold increase of the tobacco excise tax on consumption of illicit cigarette trade in Colombia. Using data collected before and after the tax increase from a novel smoker survey (DEICS-Col), the impact is estimated as the change in the probability that a smoker has illicit cigarettes. The methodology follows a difference-in-differences strategy, measuring the year-to-year variation of the proportion of illicit cigarettes between smokers who report buying low-priced cigarettes (the highest treatment intensity) and those who bought high-priced cigarettes (lowest treatment intensity).

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Background: A street cross-sectional survey in 2016 with a representative sample of 1697 smokers in five Colombian cities was used to estimate the penetration of illicit cigarettes (PIC). The first wave was collected 3 months before a 100% increase in tobacco excise tax, and a second wave collected data 9 months after tax reform was effective. OBJECTIVE : Analyse changes after a cigarette tax increase in PIC, prices and smoking behaviour patterns for five Colombian cities (63% of the market).

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The shift of the Noncommunicable Diseases (NCDs) epidemic, including cardiovascular disease, from developed to Low and Middle Income Countries (LMIC), creates new challenges in contexts where there is poor information on healthcare costs. Clearly this information is essential for planning, and its relevance is even more valuable as a driver for prevention and control of NCDs. This paper begins to address that handicap by estimating the healthcare cost of Cardiovascular Disease (Coronary Heart Disease and Stroke) in Colombia, using a person-based approach.

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Background: By 2016, tobacco industry provided the only illicit trade estimates in Colombia and used these to discourage tax increases since the 1990s. To establish the viability of a threefold hike in the excise tax, policy makers needed unbiased estimates of the illicit cigarette.

Objective: To estimate the size of illicit cigarette trade in five Colombian cities (63% of the market), analyse characteristics of smokers of illicit cigarettes and compare market share results with one industry-funded survey.

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Article Synopsis
  • Myelofibrosis (MF) is a serious blood cancer that leads to low blood cell counts and various symptoms, especially in patients with low platelet levels (thrombocytopenia).
  • A study examined the quality of life and symptom severity in 418 MF patients, showing that those with thrombocytopenia had significantly worse symptoms and higher total symptom scores compared to those without.
  • Patients with severe thrombocytopenia faced even higher risks of anemia and other complications, highlighting the need for improved treatment options for these individuals.
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In this analysis, we examine the effect of wages on obesity by constructing pseudo-panels to conduct a dynamic estimation of Grossman's human capital model. The results indicate that wages have an increasing effect on obesity status. After accounting for past health status, the protective effect of wages commonly disseminated in the literature reverses on obesity status.

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Objective: Estimate price and income elasticities of aggregate demand for cigarettes in Colombia, by controlling for structural market changes since the late 1990s, to identify policy opportunities for taxes that could improve public health and increase tax revenues.

Methods: Measurement of aggregate demand for cigarettes using gross income reported on value-added tax returns submitted to Colombia's National Tax and Customs Office (DIAN is the acronym in Spanish) by the tobacco product manufacturing industry, subtracting exports. A quarterly time series was obtained for the period 1994-2014.

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Article Synopsis
  • - The study investigates how gender affects the symptoms and complications of myeloproliferative neoplasms (MPNs), which include polycythemia vera, essential thrombocythemia, and myelofibrosis, involving 2,006 patients.
  • - Findings reveal that females are more likely to experience severe and frequent symptoms compared to males, despite similar quality of life scores, with women particularly reporting worse abdominal and microvascular symptoms.
  • - Males, on the other hand, are more likely to have polycythemia vera and experience complications such as thrombocytopenia and greater red blood cell transfusion requirements, along with shorter disease duration.
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Article Synopsis
  • Polycythemia vera (PV) is a condition linked to serious health issues and unpleasant symptoms, and JAK inhibitor therapy has shown promise for patients who have previously used hydroxyurea (HU) and experience symptoms like splenomegaly.
  • A study evaluated 1,334 PV patients to investigate how previous HU use, phlebotomy needs, and splenomegaly contribute to symptom severity.
  • Findings revealed that each of these factors is associated with a significant symptom burden, and having more than one feature increases the severity of symptoms, highlighting that patients with any of these issues experience considerable discomfort.
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Objective: Colorectal cancer (CRC) is among the most common cancers in Puerto Rico. Few studies have correlated clinical and pathological variables with the overall survival of CRC patients in Puerto Rico. We report the clinical and pathological characteristics of patients who underwent surgical resection at a community hospital in Puerto Rico.

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Article Synopsis
  • The study focused on developing an abbreviated symptom score (MPN-SAF TSS) to assess and track the most relevant symptoms experienced by patients with myeloproliferative neoplasms (MPNs), aiming to improve treatment outcomes.
  • Analysis included 1,408 MPN patients and revealed significant differences in symptom scores across different MPN subtypes, with a strong correlation to overall quality of life and internal consistency.
  • The MPN-SAF TSS showed potential as a reliable tool for measuring symptom burden in MPN patients, making it valuable for evaluating treatment responses in future studies.
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