Research Article
Received: 06 June 2023
Revised document received: 06 March 2024
Accepted: 16 April 2024
DOI: https://doi.org/10.21500/20112084.6479
Abstract
Aim: to identify whether demographic variables, the type and length of romantic relationships, and alcohol consumption were risk factors related to attitudes toward intimate partner violence (IPV).
Method: 723 adults filled the IPVAS and a demographic survey.
Results: women were less likely to accept control; participants with technical education were more likely to tolerate control and abuse; those with secondary education were at higher risk to accept physical violence, while participants aged 26-35 were at lower risk; people who were dating someone were at higher risk to tolerate control, but were at a lower risk to accept physical violence; and those who consume alcohol were more likely to accept abuse.
Conclusion: As attitudes toward IPV may predict its future occurrence, research on variables modulating the association between attitudes and IPV execution can strengthen evidence to implement preventive actions, in which shaping attitudes towards IPV are the primary target.
Keywords: IPV, Attitudes Toward Violence, IPVAS, Education Level, Alcohol Consumption, Dating.
Resumen
Objetivo: Identificar si las variables sociodemográficas, el tipo, la duración de las relaciones y el consumo de alcohol son factores de riesgo asociados con las actitudes hacia la violencia de pareja (VP).
Método: 723 adultos completaron las IPVAS y una encuesta sociodemográfica.
Resultados: las mujeres tuvieron menor probabilidad de aceptar el control; los participantes con educación técnica toleraron más control y abuso; las personas con educación secundaria presentaron mayor riesgo de aceptar violencia física, mientras que las personas entre 26 y 35 años mostraron un riesgo menor; quienes tenían una relación tuvieron riesgo mayor para tolerar control, pero menor riesgo para aceptar violencia física; aquellos que reportaron consumir alcohol tuvieron mayor probabilidad de aceptar abuso.
Conclusión: Las actitudes hacia la IPV pueden predecir la ejecución de esta conducta en el futuro. Por lo tanto, estudios que indaguen sobre variables que modulen esta asociación incrementarán la evidencia para implementar acciones preventivas, en las que la formación de actitudes hacia la VP sean el objetivo principal de cambio.
Palabras Clave: Violencia de Pareja, actitudes hacia la violencia, IPVAS, Nivel educativo, consumo de alcohol, noviazgo.
1. Introduction
Compelling evidence about consequences of violence a gainst women are increasingly known worldwide. Nev ertheless, conducting research to identify predictors of domestic violence against both men and women is im portant alike; after all, any expression of violence en dangers the respect and fulfillment of human rights (Organización Panamericana de la Salud & Organización Mundial de la Salud, 2014). Consequently, research on risk factors associated with intimate partner violence (IPV) should be sufficiently informative to design effec tive prevention strategies for the general population. Of note, such risk factors should be interpreted within the social context, as the dynamics of human relationships are closely related to social norms acquired in the cul ture to which people belong (Larsen, 2016).
In Colombia, statistics by the Instituto Nacional de Medicina Legal y Ciencias Forenses (INMLCF) showed a decrease in IPV cases in 2020 compared with 2019, going from 49026 to about 30500. The Colombian capital city assembled the largest number of battered adults by their romantic partners, reporting 11855 cases of IPV in 2020. The cases of violence against men increased from 13.94% in 2018 and 14.23% in 2019; moreover, reported domestic violence against men in 2020 showed a decrease of 59% in comparison to 2019. In sum, these statistics become an urgent call to increase research on IPV in Colombia to understand the phenomenon and create evidence-based intervention and prevention strategies (INMLCF, 2022).
Partner violence attitudes are closely related to IPV and can help to predict future violent behaviors. For in stance, high tolerance toward IPV might predict and le gitimate the use of violent behaviors or justify the abuse and maintenance in abusive relationships (Fincham et al., 2008; Khawaja et al., 2008). Thus, determining atti tudes toward IPV in the general population would con tribute to identifying the level of acceptance in people who already have endured IPV and in those who are at higher risk of living through it.
To date, some research on attitudes towards IPV have shown their association with several factors. For instance, higher education levels correlated with less tolerance to ward IPV (Wang, 2016). In terms of family dynamics, the better the family functioning is, the lower the IPV acceptance levels becomes (Alzoubi & Ali, 2021). More over, Gracia et al. (2010) showed that Latin Americans are more likely to accept IPV than Spanish people.
Learning about roles in romantic relationships dur ing adolescence also influences the development of at titudes toward IPV and future violent behaviors. For example, a literature review highlighted a higher preva lence of dating violence in young people than domestic violence in older couples (Jackson et al., 2000).
Interestingly, a study conducted in Spain showed that men trained to avoid IPV showed less acceptance towards this type of violence (Ferrer Pérez et al., 2006), which encourages the importance of identifying early risk factors in order to reduce their incidence and pro mote nonviolent interactions among romantic partners.
The goal of this study was to identify whether atti tudes toward IPV, measured by this scale, were associ ated with demographics (gender, age, sexual orientation, number of children, social class, and education level), the type and length of romantic relationships, and al cohol consumption in people living in the Colombian capital city.
2. Method
This study followed a descriptive correlational cross-sec tional design, establishing demographic variables (gen der, age, sexual orientation, number of children, social class, and education level), the type and length of the last romantic relationship, and alcohol consumption as independent variables and attitudes toward IPV as de pendent variables.
2.1 Participants
An opportunity sample of 723 individuals from the Co lombian capital city was recruited, where 42.58% were men with a mean age of 30.84 years and 57.42% were women with a mean age of 31.42. No significant differ ences were found in age by sex (t = .67; p > .05). People who were between 18 and 60 years old and who had been in at least one romantic relationship in the last twelve months were included. People with recent psychiatric diagnoses were excluded from the study.
2.2 Instruments
Spanish version of the IPVAS was used (Garay-Quevedo et al., 2021). The instrument measures the acceptance of IPV in three dimensions, namely, Control, Abuse, and Violence. The scale comprises 23 items rated on a 5-point Likert-type scale, ranging from 1 (strongly disagree) to 5 (strongly agree). The higher the score, the greater the positive attitudes toward IPV. The internal reliability of this adapted version is .80 according to Cronbach’s alpha, and for each scale, Cronbach’s alpha is .71 for abuse, .57 for control, and .78 for physical violence.
A demographic survey was also applied to record participants’ information about their age, gender, sex ual orientation, social class, education level, parenthood, type of romantic relationship, length of that relation ship, and alcohol consumption.
2.3. Procedure
Research assistants approached the eligible participants and invited them to participate after a brief explana tion of the study. People who agreed to participate were asked to sign the consent form, where they were informed of no known risks being involved in this re search. After acceptance, the participants had to answer the IPVAS first and then the demographic survey. To guarantee anonymity, no names or any kind of iden tification was registered in the answer sheets. Research assistants were present during the application to answer any questions regarding filling out the instruments.
3. Data Analysis
Descriptive statistics were performed for individual vari ables, and the prevalence of IPV attitudes was calcu lated according to the three dimensions assessed by the IPVAS. Multilevel logistic regression was performed to estimate the odds ratios (OR) and 95% confidence in tervals (CI) to describe the association between each dimension of attitudes toward IPV and demographics; the statistical significance was estimated for a p value < .05. First, a univariate raw model was fitted (model 1), and then a multivariate model was adjusted (model 2) for all the demographics, type and length of roman tic relationships, and alcohol consumption measured by the survey. The data analysis was conducted with the Statistical Package R (R Core Team, 2019).
4. Results
Table 1 shows that the number of females was higher than that of the males. Nearly half of the sample was under 25 years. The middle class had the most com mon social status, and 44.91% of the sample had a university degree. Close to 86% of this sample were heterosexual. Dating someone and being single were the most frequent status of romantic relationships. The most frequent length of relationships was less than five years. Slightly more than 50% of participants reported to have no children, and more than 60% declared some degree of alcohol consumption. The prevalence of ac ceptance of control, abuse, or physical violence were 82.16%, 84.65%, and 42.32%, respectively, indicating al most twice as much the acceptance of control and abuse as of physical violence in romantic relationships.

Table 2 shows demographic variables, type and length of relationships, and alcohol consumption associated with the attitudes toward control. The raw model depicts that being women or belonging to the middle class reduced the likelihood of acceptance toward control, whereas having a technical or a secondary education level, or consuming alcohol were risk factors for acceptance of control. The adjusted model further indicates that women were less likely to accept controlling behaviors than men, whereas its acceptance was higher in people who were dating than in single individuals, and in those having technical edu cation level than in those having a university degree. No other statistically significant associations were found.
presents the associations between demographic variables and attitudes toward abuse. The first model indi cates that having children, having technical or secondary education level, and alcohol consumption increased the acceptance of abuse. The adjusted model also shows that positive attitudes toward abuse were higher in those who have a technical or a secondary education level, and in those reporting alcohol consumption. No other statisti cally significant associations were found.

Finally, according to the raw model showing the as sociation between demographics and the acceptance of physical violence (see Table 4), those who were 26-35 years old and those who were dating someone were less likely to accept physical violence, whereas having a sec ondary education level was a risk factor. The same pat tern was found in the adjusted model, and no other sta tistically significant associations were found.
5. Discussion
This study examined the association of demographic variables, the type and length of romantic relationships, and alcohol consumption with attitudes toward IPV in 723 people living in the Colombian capital city.
The multivariate analysis showed that women were less likely to accept controlling behaviors than men, while people who had technical education and those who were dating someone were more likely to accept control. Posi tive attitudes toward abuse were higher in those who had technical and secondary education levels and in those who reported alcohol consumption. Lastly, the accep tance of physical violence was lower in people who were dating someone, and people aged between 26 and 35, whereas acceptance of physical violence was higher in those with secondary education.
The percentage of acceptance toward controlling be haviors and abuse was ab ove 80%. These results are con sistent with prior findings (Moser & McIlwaine, 2006).

Attempts to explain this problem include the acceptance of using violence in Latin-Americans based on the long history of internal conflicts and dictatorial regimens, caus ing that population commonly identifies violence as a strategy to instill respect from others in relationships, including romantic ones (de León Escribano, 2008).
Although the prevalence of physical violence accep tance was lower than the other two dimensions, nearly half of the sample accepted at least one situation where physical threat was present. This scenario suggests that, despite its rejection, physical violence is still considered bearable and culturally accepted, which agrees with pre vious reports describing physical aggression between inti mate partners as part of romantic relationships (Macha do et al., 2014), deserved for disobeying the partner (Molina & Moreno, 2015), justified when wives do not make what it is expected of them (Shakya et al., 2018), and a way to solve conflicts (Guzmán González et al., 2016). Thus, it is possible that the high acceptance of abuse, controlling interactions between partners and physical violence found in this study, reflects a bigger pic ture about rule enactment between romantic partners.
Education level is consistently reported as a strong factor associated with attitudes toward IPV, indicating that the more highly educated the population is, the lower the tolerance toward violence becomes (Alzoubi & Ali, 2021; Tran et al., 2016; Wang, 2016). This study confirmed such association for the three dimen sions. It is possible that higher education promotes sce narios that put beliefs and mental frameworks into ques tion about roles that people fulfill into their own social groups, which potentially fosters cultural changes such as gender equality (Uthman et al., 2009; Wang, 2016).

This study also found that women were more reluc tant to accept controlling behaviors in romantic relation ships. Especially in recent years, a global effort has been made to increase women’s empowerment and fos ter awareness about their contributions to society (Barik & Sethy, 2019). Moreover, there has been more advertis ing to draw attention to violence against women in order to prevent it and reduce their incidence (OMS & OPS, 2013). Likewise, some efforts have been made to lessen IPV acceptance in women and men through training (Fer rer Pérez et al., 2006). Therefore, it cannot be ruled out that some female participants had been somehow ex posed to some or all those efforts that have changed their attitudes toward IPV, making them less tolerant.
Results also showed that dating someone was a risk factor for accepting controlling behaviors. This finding is similar to results reported in an Colombian sample by Rey-Anacona (2013). Some narratives about dating relationships show that people may accept controlling
behaviors from their partners because they think that love entails sacrifice, including bearing control exerted by their romantic partners (Singleton et al., 2019). Oth ers have shown that younger women were more prone to interpret jealousy from their romantic partners as a sign of love (Power et al., 2006), or can feel flattered when their partners want to spend too much time with them (Pocock et al., 2020). Therefore, it is possible that participants who were dating someone attributed controlling behavior as a natural expression of love, thus accepting to endure or exert control over their partners.
Interestingly, dating someone was also a protective factor over tolerance toward physical violence. This was also reported by Rey-Anacona (2013) in a Colombian sample. An empirical study in 37 cultures showed that men and women express their desire to find kindness, in terdependence, and a very low level of social conflicts in potential mates (Buss, 2007). Furthermore, people tend to idealize the romantic partner in a time-limited fashion (Fletcher & Kerr, 2010), especially while they are dating (Murray et al., 1996). We speculate that those who were dating were at a lower risk of tolerating physical violence because accepting that would not match with kindness, caring, and low level of conflicts expected in romantic re lationships. Our results also showed higher acceptance of emotional abuse in those who reported alcohol consump tion. Steele and Josephs (1990) proposed the alcoholic myopia theory to describe that people under effects of al cohol exhibit lower cognitive abilities, especially regard ing attentional processes, thereby making them biased toward specific environmental cues and omitting rele vant information to interpret the whole context. This could explain the relationship between alcohol consump tion and IPV (Stappenbeck & Fromme, 2014; Watkins et al., 2015). Some studies have stated that skills of emo tion regulation mediate aggressive behavior, even if a person is under the influence of alcohol (Stappenbeck & Fromme, 2014). Therefore, alcohol consumption could be interpreted as an intervening risk factor when there is a lack of emotional regulation, rather than considering it as a cause of IPV (Grigorian et al., 2020).
Finally, this study identified that people between 26 and 35 years of age were less prone to accept physical violence. This group of people who were born between 1980 and 1995, named as millennials, are characterized by seeking a high level of tolerance and respect toward others regardless of race, sexual orientation, country of origin, etc. Moreover, millennials have achieved higher educa tion levels and have greater access to global information than previous generations (Ng & Johnson, 2015). Hence, it is possible that less acceptance of physical violence is related to an open minded mindset or critical thinking about traditional social frameworks in comparison with previous generations (Twenge & Campbell, 2012).
Great efforts were made to analyze results from a partnership perspective, to avoid gender bias interpre tation, and to draw attention to attitudes deemed as underlying factors or predictors of IPV. However, some limitations to interpret the results should be considered. First, an intentional non-random sample prevents find ings from generalization. Second, despite voluntary and anonymous participation and precautions taken by re searchers during administration of instruments, the ex tent to which there were biased answers due to social desirability is unknown; some participants might feel judged for reporting positive attitudes toward IPV. Third, the IPVAS is a self-reported scale, meaning that partic ipants’ misjudgments about any statement of the scale were unavoidable to some extent. Fourth, establishing causal associations between attitudes and demographics is inappropriate given the cross-sectional design used.
Further research should perform multivariate analy sis including psychological variables associated with at titudes toward IPV to determine whether emotional or cognitive changes mediated by attitudes can trigger vio lent interactions in romantic relationships. Assessing attitudes toward IPV from a partnership perspective to explore couple dynamics is also essential to identify whether specific attitudes serve as predictors of violent behaviors toward the partner. Researchers and mental health practitioners should insist on promoting aware ness of IPV as a public health problem, thereby increas ing evidence-based research that supports effective im plementation of public policy through strengthening ac cess to education and programs to prevent IPV.
6. Acknowledgements
The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publi cation of this article.
References
Alzoubi, F. A., & Ali, R. A. (2021). Jordanian Men’s and Women’s Attitudes Toward Intimate Part ner Violence and Its Correlates With Family Functioning and Demographics. Journal of In terpersonal Violence, 36(5-6), 2883-2907. https://doi.org/10.1177/0886260518769368
Barik, N., & Sethy, P. (2019). Women Empowerment: Theoretical Reflection from Global to National. Asiatic Society for Social Science Research (AS- SSR), 1(1), 6-11. https://doi.org/10.46700/asssr/2019/v1/i1/196129
Buss, D. M. (2007). The Evolution of Human Mating. Acta Psychologica Sinica, 39(3), 502-512. https://labs.la.utexas.edu/buss/files/2015/09/evolutionofhumanmating2007.pdf
de León Escribano, C. R. (2008). Violencia y género en América Latina. Pensamiento iberoamericano, 2, 71-91. https://dialnet.unirioja.es/servlet/articulo?codigo=2873321
Ferrer Pérez, V. A., Bosch Fiol, E., Ramis Palmer, M. C., Torres Espinosa, G. T., & Navarro Gúzman, C. (2006). La violencia contra las mujeres en la pare ja: Creencias y actitudes en estudiantes universitarios/as. Psicothema, 18(3), 359-366.https://www.redalyc.org/articulo.oa?id=72718305
Fincham, F. D., Cui, M., Braithwaite, S., & Pasley, K. (2008). Attitudes toward intimate partner vio lence in dating relationships. Psychological As sessment, 20(3), 260-269. https://doi.org/10.1037/1040-3590.20.3.260
Fletcher, G. J. O., & Kerr, P. S. G. (2010). Through the eyes of love: Reality and illusion in intimate re lationships. Psychological Bulletin, 136(4), 627 658. https://doi.org/10.1037/a0019792
Garay-Quevedo, O., Padilla, J., Valor, I., & Guillén, A. (2021). Adaptation of the Intimate Partner Vio lence Attitudes Scale to Colombian Culture and Colombian Spanish. Psicothema, 33(1), 146-154. https://doi.org/10.7334/psicothema2019.348
Gracia, E., Herrero, J., Lila, M., & Fuente, A. (2010). Percepciones y Actitudes hacia la Violencia de Pareja contra la Mujer en Inmigrantes Latino americanos en España. Psychosocial Interven tion, 19(2), 135-144. https://doi.org/10.5093/in2010v19n2a5
Grigorian, H. L., Brem, M. J., Garner, A., Florimbio, A. R., Wolford-Clevenger, C., & Stuart, G. L. (2020). Alcohol Use and Problems as a Potential Mediator of the Relationship Between Emotion Dysregulation and Intimate Partner Violence Perpetration. Psychology of Violence, 10(1), 91 99. https://doi.org/10.1037/vio0000237
Guzmán González, M., Contreras Carracedo, V., Martí nez Oribe, A., & Rojo Arismendi, C. (2016). Asociación entre los estilos de apego y violen cia física recibida en relaciones de noviazgo en estudiantes universitarios. Revista Argentina de Clínica Psicológica, 25(2), 177-185.
Instituto Nacional de Medicina Legal y Ciencias Forenses. (2022). Forensis 2020 Datos para la vida. https://www.medicinalegal.gov.co/cifras-estadisticas/forensis
Jackson, S. M., Cram, F., & Seymour, F. W. (2000). Vi olence and Sexual Coercion in High School Stu dents’ Dating Relationships. Journal of Family Violence, 15(1), 23-36. https://doi.org/10.1023/A:1007545302987
Khawaja, M., Linos, N., & El-Roueiheb, Z. (2008). Atti tudes of Men and Women Towards Wife Beat ing: Findings From Palestinian Refugee Camps in Jordan. Journal of Family Violence, 23(3), 211-218. https://doi.org/10.1007/s10896-007-9146-3
Larsen, M. M. (2016). Theoretical and Empirical Per spectives on Intimate Partner Violence. In Health Inequities Related to Intimate Partner Violence Against Women: The Role of Social Policy in the United States, Germany, and Norway (pp. 13 29). Springer International Publishing. https://doi.org/10.1007/978-3-319-29565-72
Machado, C., Martins, C., & Caridade, S. (2014). Vio lence in Intimate Relationships: A Comparison between Married and Dating Couples. Journal of Criminology, 2014, e897093. https://doi.org/10.1155/2014/897093
Molina, J. E., & Moreno, J. H. (2015). Percepción de la experiencia de violencia doméstica en mujeres víctimas de maltrato de pareja. Universitas Psychologica, 14(3), 997-1008. https://doi.org/10.11144/Javeriana.upsy14-3.pevd
Moser, C. O. N., & McIlwaine, C. (2006). Latin Ameri can Urban Violence as a Development Concern: Towards a Framework for Violence Reduction. World Development, 34(1), 89-112. https://doi.org/10.1016/j.worlddev.2005.07.012
Murray, S. L., Holmes, J. G., & Griffin, D. W. (1996). The self-fulfilling nature of positive illusions in romantic relationships: Love is not blind, but prescient. Journal of Personality and Social Psy chology, 71(6), 1155-1180. https://doi.org/10.1037/0022-3514.71.6.1155
Ng, E. S. W., & Johnson, J. M. (2015). Millennials: Who are they, how are they different, and why should we care? The Multi-Generational and Ag ing Workforce, 121-137. https://www.elgaronline.com/view/edcoll/9781783476572/9781783476572.00014.xml
Organización Mundial de la Salud & Organización Panamericanade la Salud. (2013). Comprender y abor dar la violencia contra las mujeres: Violencia infligida por la pareja (WHO/RHR/12.36). Or ganización Mundial de la Salud. https://apps.who.int/iris/handle/10665/98816
Organización Panamericana de la Salud & Organización Mundial de la Salud. (2014). Resumen: Respues ta a la violencia de pareja y a la violencia sexual contra las mujeres. Directrices de la OMS para la práctica clínica y las políticas. OPS. https://iris.paho.org/handle/10665.2/7705
Pocock, M., Jackson, D., & Bradbury-Jones, C. (2020). Intimate partner violence and the power of love: A qualitative systematic review. Health Care for Women International, 41(6), 621-646. https://doi.org/10.1080/07399332.2019.1621318
Power, C., Koch, T., Kralik, D., & Jackson, D. (2006). Lovestruck: Women, romantic love and intimate partner violence. Contemporary Nurse, 21(2), 174-185. https://doi.org/10.5172/conu.2006.21.2.174
R Core Team. (2019). R: The R Project for Statistical Computing[Software]. https://www.r-project.org/
Rey-Anacona, C. A. (2013). prevalencia y tipos de mal trato en el noviazgo en adolescentes y adultos jóvenes. Terapia psicológica, 31(2), 143-154. https://doi.org/10.4067/S0718-48082013000200001
Shakya, H. B., Perkins, J. M., Traeger, M., Tsai, A. C., Bangsberg, D. R., Kakuhikire, B., & Christakis, N. A. (2018). Social network correlates of IPV acceptance in rural Honduras and rural Uganda. SSM - Population Health, 4, 236-243. https://doi.org/10.1016/j.ssmph.2018.02.001
Singleton, R., Picado Araúz, M. de la P., Trocin, K., & Winskell, K. (2019). Transforming narratives into educational tools: The collaborative devel opment of a transformative learning tool based on Nicaraguan adolescents’ creative writing a bout intimate partner violence. Global Health Promotion, 26(1), 15-24. https://doi.org/10.1177/1757975916679553
Stappenbeck, C. A., & Fromme, K. (2014). The effects of alcohol, emotion regulation, and emotional arousal on the dating aggression intentions of men and women. Psychology of Addictive Be haviors, 28(1), 10-19. https://doi.org/10.1037/a0032204
Steele, C. M., & Josephs, R. A. (1990). Its Prized and Dangerous Effects. American Psychologist, 45(8), 921-933. https://pubmed.ncbi.nlm.nih.gov/2221564/
Tran, T. D., Nguyen, H., & Fisher, J. (2016). Attitudes towards Intimate Partner Violence against Wom en among Women and Men in 39 Low- and Middle-Income Countries. PLOS ONE, 11(11), e0167438. https://doi.org/10.1371/journal.pone.0167438
Twenge, J. M., & Campbell, S. M. (2012). Who are the Millennials? Empirical evidence for genera tional differences in work values, attitudes and personality. Managing the New Workforce, 1-19. https://www.elgaronline.com/view/edcoll/9780857933003/9780857933003.00006.xml
Uthman, O. A., Lawoko, S., & Moradi, T. (2009). Fac tors associated with attitudes towards intimate partner violence against women: A comparative analysis of 17 sub-saharan countries. BMC In ternational Health and Human Rights, 9(1), 14. https://doi.org/10.1186/1472-698X-9-14
Wang, L. (2016). Educación, factores de percepción y prevención de la violencia de pareja íntima: In vestigación empírica sobre las percepciones y ac titudes de los estudiantes universitarios chinos con respecto a la violencia de pareja íntima. Journal of Interpersonal Violence, 34(8), 1611-1632. https://doi.org/10.1177/0886260516652263
Watkins, L. E., DiLillo, D., & Maldonado, R. C. (2015). The Interactive Effects of Emotion Regulation and Alcohol Intoxication on Lab-Based Intimate Partner Aggression. Psychology of Addictive Be haviors: journal of the Society of Psychologists in Addictive Behaviors, 29(3), 653-663. https://doi.org/10.1037/adb0000074
Notes
Author notes
*Corresponding author: Angélica Julieth Guillén Puerto. ajguillenp@unal.edu.co