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Revista Colombiana de Cardiología

Print version ISSN 0120-5633

Rev. Colomb. Cardiol. vol.28 no.1 Bogota Jan./Feb. 2021  Epub Mar 19, 2021

https://doi.org/10.24875/rccar.m21000003 

Cardiología del adulto - Artículos originales

Prevalence of lipid-lowering drug use

Prevalencia de uso de fármacos hipolipemiantes

Manuel E. Machado-Duque1  2 

Andrés Gaviria-Mendoza1  2 

and Jorge E. Machado-Alba1  * 

1Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A.

2Grupo Biomedicina, Fundación Universitaria Autonóma de las Américas. Pereira, Colombia


Abstract

Introduction:

Among the main causes of death in Colombia, Latin America, and the general population are pathologies of cardiovascular origin, which have an important relationship with dyslipidemias.

Objective:

The objective of the study was to establish the prevalence of the use of lipid-lowering drugs in a Colombian population during 2016.

Material and methods:

A cross-sectional study was conducted using a population database of the Colombian Health System between January and June 2016. Site: outpatients of Colombia. Participants. Researchers considered all patients who had received this class of drug to establish the prevalence of the use of lipid-lowering drugs. Main measurements. Prevalence of use of lipid-lowering drugs.

Results:

From a population of 4,328,688 patients, a total of 282,002 were prescribed a lipid-lowering drug; the mean age was 64.2 ± 13.3 years and women comprised 50.4% of the users. The estimated prevalence of lipid-lowering drug use was 6.5%. Statins (86.3%) were the most commonly used lipid-lowering drugs (atorvastatin: 81.0%, lovastatina: 14.4%) followed by fibrates (13.1%) and ezetimibe (0.6%).

Conclusions:

A low proportion of people are being treated with lipid-lowering drugs, according to the estimated prevalence of dyslipidemia.

Key words: Statins; Hypercholesterolemia; Epidemiology; Pharmacology

Resumen

Introducción:

Las patologías de origen cardiovascular son la primera causa de muerte en Colombia y América Latina, y la dislipidemia tiene una importante relación.

Objetivo:

El objetivo fue establecer la prevalencia o proporción de uso de hipolipemiantes en una población colombiana durante el año 2016.

Materiales y métodos:

Estudio de corte transversal a partir de una base de datos poblacional de pacientes afiliados al Sistema de Salud de Colombia entre enero y junio de 2016. Sitio. Pacientes ambulatorios de Colombia. Participantes. Se consideraron todos los pacientes que recibieron algún hipolipemiante, de cualquier sexo y mayores de 18 años. Mediciones principales: prevalencia de uso de hipolipemiantes.

Resultados:

A partir de una población de 4328688 pacientes, se prescribieron hipolipemiantes a 282002, con una edad media de 64,2 13,3 años y el 50,4% eran mujeres. La prevalencia estimada de uso fue de 6,5%. Las estatinas (86,3%) fueron los hipolipemiantes más comúnmente utilizados (atorvastatina: 81,0%, locastatina: 14,4%) seguido de los fibratos (13,1%) y ezetimibe (0,6%).

Conclusiones:

Una baja proporción de personas están siendo tratados con hipolipemiantes de acuerdo a la prevalencia estimada de dislipidemia para la población del país.

Palabras clave: Estatinas; Hipercolesterolemia; Epidemiología; Farmacología

Introduction

Diseases of cardiovascular origin are among the main causes of death in Colombian, Latin American and general populations; these have an important relationship with dyslipidemias, and according to figures from the National Institute of Health, are the leading cause of death in the country1.

Several epidemiological studies in apparently healthy Colombian populations have found a cardiovascular risk profile similar to that of developed countries, highlighting an elevated prevalence of hypercholesterolemia2-4. According to these reports, in Colombia, mixed dyslipidemia (hypercholesterolemia + hypertriglyceridemia) is the most frequent type of dyslipidemia (46.6%), in addition to being present in patients with a high cardiovascular risk (on average, a 14% 10-year risk according to the Framingham stratification). The risk factors that most frequently coexisted in this population were hypertension (93.2%), diabetes mellitus (28.5%), a personal history of cardiovascular disease (16.7%), and advanced age5. Since the publication of the Colombian clinical practice guidelines for the management of hypercholesterolemia in 2014, the prevalence and proportion of use of lipid-lowering therapies have not been measured2. However, numerous studies have shown that a very low proportion of dyslipidemic patients used lipid-lowering medications as often and for as long as their physicians prescribed6,7.

Statins and fibrates are mainly used for the management of dyslipidemias; statins are used to treat hypercholesterolemia and control cardiovascular risk, having a positive impact on major cardiovascular outcomes8; this group of medications is a pillar of the management of cardiovascular pathologies. In addition, recently published studies show that about 78% of statins used in Colombia are of high potency, leading to greater cardiovascular protection, with atorvastatin being the most widely used medication9.

The objective of this study was to establish the prevalence or proportion of the use of lipid-lowering drugs in a Colombian population during 2016.

Methods

A cross-sectional study was conducted on the use of lipid-lowering medications through a drug claims population database of people affiliated with the Colombian Health System among four insurers of the contributory regime with a presence throughout the country. This health system is divided between a subsidized regime (paid by the Colombian state) and a contributory regime (paid by the workers and employers contribution). All patients older than 18 years and of any gender who were regularly attending medical care for dyslipidemia or cardiovascular risk factors and received lipid-lowering treatment were included in the study.

We considered all the patients who received the drug over the course of 6 months (January-June 2016) to establish the prevalence of the use of lipid-lowering drugs. From the information on drug consumption systematically and uninterruptedly captured by the company that distributes it to the affiliated population, we collected the following groups of variables from the patients to whom drugs were distributed during the observation period:

  • 1. Sociodemographic variables: age and sex.

  • 2. Lipid-lowering drugs dispensed: (a) statins alone or in combinations, (b) fibrates, (c) cholestyramine, (d) ezetimibe, and (e) nicotinic acid. All statins, gemfibrozil, and cholestyramine are covered by the 2016 health benefits plan. For all other lipid-lowering medications, a justified request must be submitted to be dispensed by the health system10.

Data analysis was performed in SPSS Statistics, version 24.0 (IBM, USA) for Windows. Univariate analyses were performed to assess frequencies and proportions of categorical variables and measures of central tendency, position, and dispersion for the quantitative variables.

The study was classified as a risk-free investigation, ethical principles established by the Declaration of Helsinki were respected, and individual informed consent was not required for each patient.

Results

From a population of 4,328,688 patients, a total of 282,002 were prescribed a lipid-lowering drug during the 6 months of observation. The mean age was 64.2 ± 13.3 years and women comprised 50.4% of users. The population distribution by age is shown in figure 1.

Figure 1 Distribution by age group of 282 002 patients under treatment with lipid-lowering drugs in Colombia, 2016. 

The estimated prevalence of lipid-lowering drug use was 6.5% within the general population. Statins were the most commonly used lipid-lowering drugs at 86.3%, with a predominance of atorvastatin (81.0%) followed by lovastatin (14.4%) and rosuvastatin (4.4%) (0.2% other statins). The second group in terms of frequency of use was fibrates at 13.1% (particularly gemfibrozil, which accounted for 91.9% of the cases), and finally, 0.6% of the patients used ezetimibe. No patients consumed nicotinic acid.

Discussion

The present study was able to identify the prevalence of the use of lipid-lowering drugs in a Colombian population, presenting valuable information for decision-making by those involved in healthcare and the rational use of health system resources.

The prevalence of dyslipidemia has been estimated at 16.8% in Korea, 41.6% in Iran, 45.0% in Canada, 44.0% in Brazil, and 35.3% in some regions of Colombia11-15. According to data from the World Health Organization in the Americas, the prevalence of elevated cholesterol in men ranges from 31.8% to 56.1%, and in women, the prevalence for the northern zone is between 37.5% and 54.3%16. In Germany, it was estimated that 30.8% of adults with dyslipidemia received pharmacological treatment17, which, when compared with our 6.5% result, indicates that the frequency of use of lipid-lowering drugs is probably lower than expected for the Colombian population. These findings are worrying, as they may indicate underdiagnoses of dyslipidemia and under-utilization of lipid-lowering agents in patients when indicated, considering additional benefits that go beyond reduced blood lipids8.

Additional cardiovascular benefits could be obtained by extending the use of these drugs to patients with high cardiovascular risk or dyslipidemia who are not in pharmacological management, as these drugs interact with statins and their pleiotropic effects8,18,19. Research also supports all statins being included in the benefits plan of the Colombian Health System10, including atorvastatin, a high-potency statin that is the most commonly used in Colombia9.

Limitations

The included population does not include data from the total number of Colombians but represents a proportion close to 9% of these and corresponds to 32% of users in the contributory regime, so the results could be extrapolated only to populations with similar assurance characteristics.

Conclusion

Finally, it can be concluded that a low proportion of people are being treated with lipid-lowering drugs according to the estimated prevalence of dyslipidemia.

Acknowledgments

To Soffy López for her contribution to the generation of information and the database.

References

1. Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, et al. Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010:a systematic analysis for the global Burden of disease study 2010. Lancet (London, England) 2012;380:2095-128. [ Links ]

2. Ministerio de Salud y Protección Social-Colciencias-CINETS. Guía de Práctica Clínica (GPC) Para la Prevención, Detección Temprana, Diagnóstico, Tratamiento y Seguimiento de las Dislipidemias en la Población Mayor de 18 Años, Guía No 27. Bogotá, Colombia:ministerio de Salud y Protección Social;2014. Available from:http://www.gpc.minsalud.gov.co/gpc_sites/Repositorio/Conv_563/GPC_dislipidemias/GPC_dislipidemias_profesionales.aspx. [ Links ]

3. Caraballo G, Grisales R, Flórez G, Emilia L. Factores de riesgo para enfermedades cardiovasculares. Programa de prevención de la universidad de Antioquia. Rev Fac Nac Salud Pública. 1997;14:90-108. [ Links ]

4. Hobbs FD. Cardiovascular disease and lipids. Issues and evidence for the management of dyslipidaemia in primary care. Eur J Gen Pract. 2003;9:16-24. [ Links ]

5. Machado-Alba JE, Machado-Duque ME. Cardiovascular risk factors prevalence among patients with dyslipidemia in Colombia. Rev Peru Med Exp Salud Publica. 2013;30:205-11. [ Links ]

6. Mindell J, Aresu M, Zaninotto P, Falaschetti E, Poulter N. Improving lipid profiles and increasing use of lipid-lowering therapy in England:results from a national cross-sectional survey-2006. Clin Endocrinol. 2011;75:621-7. [ Links ]

7. Primatesta P, Poulter NR. Lipid concentrations and the use of lipid lowering drugs:evidence from a national cross sectional survey. BMJ. 2000;321:1322-5. [ Links ]

8. Oesterle A, Laufs U, Liao JK. Pleiotropic effects of statins on the cardiovascular system. Circ Res. 2017;120:229-43. [ Links ]

9. Gaviria-Mendoza A, Machado-Duque ME, Machado-Alba JE. Lipid-lowering drug prescriptions in a group of Colombian patients. Biomedica. 2019;39:759-68. [ Links ]

10. Ministerio de Salud y Protección Social. Resolución Número 5592 de 2015, Por la Cual se Actualiza Integralmente el Plan de Beneficios en Salud Con Cargo a la Unidad de Pago por Capitación-UPC del Sistema General de Seguridad Social en Salud-SGSSS y se Dictan Otras Disposiciones. República de Colombia;2015. Available from:https://www.minsalud.gov.co/salud/POS/Paginas/plan-obligatorio-de-salud-pos.aspx. [ Links ]

11. Dalpino FB, SodréFL, de Faria EC. The use of a hospital laboratory cohort to estimate the prevalence of dyslipidemia in an adult Brazilian population. Clin Chim Acta. 2006;367:189-91. [ Links ]

12. Jeong JS, Kwon HS. Prevalence and clinical characteristics of dyslipidemia in Koreans. Endocrinol Metab. 2017;32:30-5. [ Links ]

13. Joffres M, Shields M, Tremblay MS, Gorber SC. Dyslipidemia prevalence, treatment, control, and awareness in the Canadian health measures survey. Can J Public Health. 2013;104:e252-7. [ Links ]

14. Patino-Villada FA, Arango-Velez EF, Quintero-Velasquez MA, Arenas-Sosa MM. Cardiovascular risk factors in an urban Colombia population. Rev Salud Publica (Bogota). 2011;13:433-45. [ Links ]

15. Tabatabaei-Malazy O, Qorbani M, Samavat T, Sharifi F, Larijani B, Fakhrzadeh H. Prevalence of dyslipidemia in Iran:A systematic review and meta-analysis study. Int J Prev Med. 2014;5:373-93. [ Links ]

16. Mendis S, Puska P, Norrving B. Global Atlas on Cardiovascular Disease Prevention and Control:World Health Organization;2011. Available from:https://www.who.int/cardiovascular_diseases/publications/atlas_cvd/en. [ Links ]

17. Scheidt-Nave C, Du Y, Knopf H, Schienkiewitz A, Ziese T, Nowossadeck E, et al. Prevalence of dyslipidemia among adults in Germany:results of the German health interview and examination survey for adults (DEGS 1). Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz. 2013;56:661-7. [ Links ]

18. Mortensen MB, Falk E. Primary prevention with statins in the elderly. J Am Coll Cardiol. 2018;71:85-94. [ Links ]

19. Rodriguez F, Maron DJ, Knowles JW, Virani SS, Lin S, Heidenreich PA. Association between intensity of statin therapy and mortality in patients with atherosclerotic cardiovascular disease. JAMA Cardiol. 2017;2:47-54. [ Links ]

FundingThe authors declare that this study was funded by the Universidad Tecnológica de Pereira, Audifarma S.A. and Sanofi.

Ethical disclosures

Protection of human and animal subjects. The authors declare that no experiments were performed on humans or animals for this study.

Confidentiality of data. The authors declare that they have followed the protocols of their work center on the publication of patient data.

Right to privacy and informed consent. The authors declare that no patient data appear in this article.

Received: April 12, 2018; Accepted: May 13, 2020

*Correspondence: Jorge E. Machado-Alba E-mail: machado@utp.edu.co

Conflicts of interest

The authors declare that Sanofi of Colombia financed the data collection process. There was no intervention in the stages of processing, analysis, or publication of that data. The grant was received by Audifarma S.A. No non-financial conflicts of interest exist for any of the authors.

Creative Commons License Instituto Nacional de Cardiología Ignacio Chávez. Published by Permanyer. This is an open ccess article under the CC BY-NC-ND license