Self-medication in children aged 0-12 years in Brazil: a population-based study.

OBJETIVE: Studies have shown that the practice of self-medicating children occurs worldwide and is independent of the country's economic level, medication policies, or access to health services. This study aimed to estimate and characterize the prevalence of self-medication in the Brazilian population of children aged up to 12 years. METHODS: We analyzed the data of 7528 children aged up to 12 years whose primary caregivers responded to the National Survey on Access, Use and Promotion of Rational Use of Medicines in Brazil (PNAUM), a cross-sectional population-based study conducted in 245 Brazilian municipalities. The prevalence of self-medication was defined as the use of at least one medication without a doctor's or dentist's indication 15 days before the interview. RESULTS: The prevalence of self-medication was 22.2% and was more frequent in older children belonging to poorer families and without health insurance. The acute conditions for which there was a higher frequency of self-medication were pain, fever, and cold/allergic rhinitis. Analgesics/antipyretics stood out among the most used medications for self-medication. CONCLUSIONS: The prevalence of self-medication to treat acute conditions was high in Brazilian children sampled in PNAUM, emphasizing the management of common symptoms such as pain, fever, and cold/allergic rhinitis in this age group. These findings reinforce the need for educational actions aimed at parents and caregivers.

Users' preferences and perceptions of the comprehensibility and readability of medication labels.

OBJECTIVE: To evaluate the labeling preferences of medication users and characterize their perceptions of the comprehensibility and readability of medication labels. METHODS: We conducted a population-based cross-sectional study of medication users aged 18 years or older in 10 Brazilian capital cities. Perceptions of the comprehensibility and readability of medication labels in relation to sociodemographic characteristics were evaluated by Poisson regression models with robust variance. Labeling preferences were assessed through questions addressing possible improvements and through the use of digitally simulated packages. RESULTS: Of 6,255 medication users interviewed, more than half found it difficult or very difficult to read (50.8%) and/or understand (52.0%) medication labels. Difficulties were more pronounced for participants aged 40 years or older, with lower levels of education, and non-whites. Increasing the font size (93.7%), describing the indications for use (95.9%) and contraindications (95.6%) on the label, and highlighting the expiration date (96.3%) were the most widely accepted improvements. In the evaluation of simulated packages, users preferred factors that improved readability, such as increased font size, use of graphic elements and color to highlight the concentration of the active ingredient, and contrast between the font color and background. The new simulated package design, with increased font size, color to highlight the concentration and contrast between the font color and background, was preferred over the standard design by 77.0% of participants. CONCLUSION: Based on users' perceptions, increased font size and use of graphic elements and color to emphasize critical information, such as expiration date and concentration, are factors that contribute to making medication labels clearer to users. Pharmaceutical industries and policy makers should consider these items when developing labels and defining policies on this issue.

Self-medication in children aged 0-12 years in Brazil: a population-based study / Automedicação em crianças de 0-12 anos no Brasil: um estudo de base populacional

ABSTRACT Objetive: Studies have shown that the practice of self-medicating children occurs worldwide and is independent of the country's economic level, medication policies, or access to health services. This study aimed to estimate and characterize the prevalence of self-medication in the Brazilian population of children aged up to 12 years. Methods: We analyzed the data of 7528 children aged up to 12 years whose primary caregivers responded to the National Survey on Access, Use and Promotion of Rational Use of Medicines in Brazil (PNAUM), a cross-sectional population-based study conducted in 245 Brazilian municipalities. The prevalence of self-medication was defined as the use of at least one medication without a doctor's or dentist's indication 15 days before the interview. Results: The prevalence of self-medication was 22.2% and was more frequent in older children belonging to poorer families and without health insurance. The acute conditions for which there was a higher frequency of self-medication were pain, fever, and cold/allergic rhinitis. Analgesics/antipyretics stood out among the most used medications for self-medication. Conclusions: The prevalence of self-medication to treat acute conditions was high in Brazilian children sampled in PNAUM, emphasizing the management of common symptoms such as pain, fever, and cold/allergic rhinitis in this age group. These findings reinforce the need for educational actions aimed at parents and caregivers.

RESUMO Objetivo: Estudos têm mostrado que a prática de automedicar crianças ocorre mundialmente e independe do nível econômico do país, das políticas de medicamentos ou do acesso aos serviços de saúde. O objetivo deste estudo foi estimar e caracterizar a prevalência de uso de medicamentos por automedicação na população brasileira de crianças de zero a 12 anos de idade. Métodos: Foram analisadas informações de 7.528 crianças de zero a 12 anos cujo cuidador principal respondeu à Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos no Brasil (PNAUM), estudo transversal de base populacional realizado em 245 municípios brasileiros. A prevalência de automedicação foi definida como o uso de pelo menos um medicamento sem indicação de médico ou dentista nos 15 dias anteriores à entrevista. Resultados: A prevalência de automedicação foi de 22,2% e foi mais frequente nas crianças mais velhas e pertencentes a famílias mais pobres e sem plano de saúde. As condições agudas para as quais houve maior frequência de automedicação foram dor, febre, resfriado e rinite alérgica. Analgésicos/antipiréticos destacaram-se entre os medicamentos mais utilizados por automedicação. Conclusões: A prevalência de automedicação no manejo de condições agudas foi elevada nas crianças brasileiras amostradas na PNAUM, com destaque para o manejo de sintomas comuns nessa faixa etária, como dor, febre, resfriado e rinite alérgica. Esses achados reforçam a necessidade de ações educativas voltadas aos pais e cuidadores.

Predisposing factors to the practice of self-medication in Brazil: Results from the National Survey on Access, Use and Promotion of Rational Use of Medicines (PNAUM).

OBJECTIVE: To understand the predisposing factors that lead to the practice of self-medication and the factors associated with the use of medicines via self-medication in the adult population of Brazil. METHODS: The analyzed data are part of the National Survey on Access, Use and Promotion of Rational Use of Medicines (PNAUM), a survey whose population consisted of individual residents permanently domiciled in urban areas in Brazil. In this work, the data references the 31 573 respondents aged 20 or higher (76.2% of the final PNAUM sample). Poisson regression models with robust variance were used for estimating the independent effect of each variable with medicine use via self-medication. RESULTS: Of the interviewees, 73.6% stated they had used some medication without medical recommendation if they had previously used the same product; 73.8% stated they had used non-prescribed medicine when the medicine was already present at home; and 35.5% stated they had used some non-prescribed medication when they knew someone who had already taken the same medication. The prevalence of self-medication was 18.3%. The variables associated with the highest probability of using medicine via self-medication were: geographic region within Brazil, gender, age group, per capita income, self-assessment of health, self-reported use of previously used non-prescribed medication, and self-reported use of non-prescribed medication when that medication was already present at home. CONCLUSIONS: The use of medicines via self-medication in Brazil is relatively frequent and influenced by previous experience and familiarity with the medications, and is more common among women and individuals with low self-assessment of health.

Perceptions by pregnant and childbearing-age women in southern Brazil towards teratogenic risk from medicines and radiotherapy.

Mistaken perception of teratogenic risk can keep pregnant women from using safe medicines. The current study analyzed women's concepts and perceptions towards teratogenic risk from medicines and exposure to radiotherapy during pregnancy. The quantitative data resulted from interviews with 287 pregnant and non-pregnant women. Two qualitative focus groups were conducted. No significant differences were observed between the two groups in terms of perceptions of teratogenic risk. Median perceptions of non-teratogenic exposures (paracetamol and metoclopramide) were close to the expected values, while higher values were found for teratogenic exposures (misoprostol and radiotherapy). The logic women used to estimate risk was classification of medicines as "strong" or "weak". Medicines perceived as "weak" by the women do not pose any teratogenic risk, as shown by the median perceptions close to the true values. Meanwhile, "strong" medicines were viewed as dangerous, thus explaining the high median perceptions of teratogenic exposures.

[Use of medication by the elderly in urban and rural areas in southern Brazil: a population-based study]. / Uso de medicamentos entre idosos residentes em áreas urbanas e rurais de município no Sul do Brasil: um estudo de base populacional.

The study aimed to measure use of medication and polypharmacy among the elderly in Carlos Barbosa, Rio Grande do Sul State, Brazil, and to compare socio-demographic, economic, and health characteristics in relation to area of residence (urban versus rural) in a random sample of 811 persons 60 year of age or older. Interviews were used to collect data on socio-demographic characteristics, chronic illnesses, and self-reported use of medications. The association between area of residence and medication or polypharmacy was adjusted for confounders using Poisson regression with robust variance. Prevalence rates for use of medication and polypharmacy were higher among older persons living in the urban area. Living in the urban area was positively and independently associated with use of medication (PR = 1.10; 95%CI: 1.02-1.20) and polypharmacy (PR = 1.83; 95%CI: 1.27-2.65) in this group of elderly in southern Brazil.

Perceptions by pregnant and childbearing-age women in southern Brazil towards teratogenic risk from medicines and radiotherapy / Percepções de risco teratogênico de medicamentos e radioterapia por gestantes e mulheres em idade fértil no Sul do Brasil / Percepciones de riesgo teratogénico de medicamentos y radioterapia en mujeres embarazadas y en edad fértil en el sur de Brasil

Mistaken perception of teratogenic risk can keep pregnant women from using safe medicines. The current study analyzed women’s concepts and perceptions towards teratogenic risk from medicines and exposure to radiotherapy during pregnancy. The quantitative data resulted from interviews with 287 pregnant and non-pregnant women. Two qualitative focus groups were conducted. No significant differences were observed between the two groups in terms of perceptions of teratogenic risk. Median perceptions of non-teratogenic exposures (paracetamol and metoclopramide) were close to the expected values, while higher values were found for teratogenic exposures (misoprostol and radiotherapy). The logic women used to estimate risk was classification of medicines as “strong” or “weak”. Medicines perceived as “weak” by the women do not pose any teratogenic risk, as shown by the median perceptions close to the true values. Meanwhile, “strong” medicines were viewed as dangerous, thus explaining the high median perceptions of teratogenic exposures.

Percepção de risco teratogênico equivocada pode privar a gestante do uso de medicamentos seguros. O estudo analisou concepções e percepções de risco teratogênico de mulheres sobre o uso de medicamentos e exposição à radioterapia durante a gestação. Dados quantitativos resultaram da realização de entrevistas com 287 gestantes e não gestantes. Qualitativamente, dois grupos focais foram realizados. Não se observaram diferenças significativas nas percepções de risco teratogênico entre grupos. As medianas das percepções para as exposições não teratogênicas – paracetamol e metoclopramida – foram próximas do valor esperado, e para as exposições teratogênicas – misoprostol e radioterapia – valores maiores foram encontrados. A lógica acionada pelas mulheres na estimação do risco é a da classificação dos medicamentos em fortes e fracos. Medicamentos percebidos pelas mulheres como fracos não apresentam risco, evidenciado pela aproximação das medianas ao valor esperado. Já medicamentos fortes são vistos como perigosos, justificando as altas medianas das exposições teratogênicas.

Percepción equivocada del riesgo teratogénico puede privar a las embarazadas de la utilización de medicamentos seguros. En este estudio se analizan las concepciones y la percepción de riesgo teratogénico de mujeres con respecto al uso de medicamentos y exposición a la radioterapia durante el embarazo. Los datos cuantitativos resultan de la administración de entrevistas a 287 mujeres embarazadas y no embarazadas; los cualitativos, de dos grupos focales. No se encontraron diferencias significativas en la percepción de riesgo entre los grupos. Las medianas para la percepción de riesgo a las exposiciones no teratogénicas resultaron cerca del valor esperado, mientras que para las exposiciones teratogénicas se encontraron valores más altos. La lógica usada por las mujeres para estimar el riesgo clasifica los medicamentos en fuertes y débiles. Aquellos percibidos como débiles no suponen riesgo (lo que se evidencia por la aproximación de las medianas al valor real). Por otra parte, los fuertes son vistos como peligrosos, lo que justifica las medianas altas para los riesgos teratogénicos.

Analysis of agreement between Visual Analogue Scales (VAS) and numerical questions to assess perception of teratogenic risks in treatment with drugs and radiotherapy in women / Análise de concordância entre as escalas visual analógica (VAS) e questões numéricas para avaliar a percepção de riscos teratogênicos em tratamento com medicamentos e radioterapia em mulheres

To evaluate the agreement between Visual Analogue Scales (VAS) and numerical questions as a way of assessing the perception of teratogenic risk of treatment with drugs and radiotherapy. Methods: the sample comprised 144 pregnant and 143 non-pregnant women consecutively recruited at public health centers in Porto Alegre, in the State of Rio Grande do Sul, from February to August 2011. The perception of risk for congenital malformations in the general population and the perceptions of teratogenic risk for exposure to acetaminophen, meto-clopramide, misoprostol and radiotherapy were measured using VAS and numerical questions. The agreement between the results of the two techniques was tested using a Bland-Altman plot. Results: the medians for the perceptions measured using VAS were higher than those obtained using numerical questions for all variables. The perception of risk for acetaminophen showed the lower bias of the two techniques (bias=13.17; p<0.001) and exposure to radiotherapy, the higher (bias=25.02; p<0.001). Conclusion: there was no agreement between the measurements obtained using the two techniques for any of the risk perceptions under study. Risk perceptions were higher using VAS, for all kinds of exposure. Studies should be conducted to assess whether there is overestimation in other situations and social contexts owing to the use of VAS...

Avaliar a concordância entre Escalas Visuais Analógicas (EVA) e perguntas numéricas para aferir a percepção de risco teratogênico de medicamentos e radioterapia. Métodos: a amostra foi constituída por 144 gestantes e 143 não gestantes recrutadas consecutivamente em centros públicos de saúde de Porto Alegre, RS, entre fevereiro e agosto de 2011. A percepção de risco de malformações congênitas na população geral e as percepções de risco teratogênico das exposições a paracetamol, metoclo-pramida, misoprostol e radioterapia na gestação foram aferidas por EVA e perguntas numéricas. A concordância entre as duas técnicas foi avaliada pela análise gráfica de Bland-Altman Resultados: as medianas das percepções de risco teratogênico medidas por EVA foram superiores às obtidas através da pergunta numérica, para todas as variáveis. A percepção de risco ao paracetamol apresentou o menor viés entre as duas técnicas de aferição (viés=13,17; p<0,001) e a exposição à radioterapia, o maior (viés=25,02;p<0,001). Conclusões: não houve concordância entre as duas técnicas, para nenhuma das percepções de risco estudadas. As percepções de risco foram maiores para EVA, para todas as exposições. Sugerimos a realização de estudos que avaliem se também ocorre superestimação em outras situações e contextos sociais, em função do uso de EVA...

Uso de medicamentos entre idosos residentes em áreas urbanas e rurais de município no Sul do Brasil: um estudo de base populacional / Use of medication by the elderly in urban and rural areas in southern Brazil: a population-based study

O objetivo foi verificar a prevalência de uso de medicamentos e de polifarmácia entre idosos de Carlos Barbosa, Rio Grande do Sul, Brasil, e comparar as características sociodemográficas e de saúde associadas ao uso, segundo o local de moradia. Foi avaliada uma amostra aleatória de 811 idosos com 60 anos ou mais, moradores na área urbana ou rural. Dados sociodemográficos, doenças crônicas, qualidade de vida e medicamentos autorreferidos foram coletados em entrevistas presenciais. Associação entre local de moradia e uso de medicamentos ou polifarmácia, ajustada para potenciais confundidores, foi avaliada por regressão de Poisson com ajuste robusto da variância. A prevalência de uso de medicamentos e de polifarmácia foi maior entre os idosos urbanos. Morar na área urbana apresentou associação positiva e independente com uso de medicamentos (RP = 1,10; IC95 por cento: 1,02-1,20) e polifarmácia (RP = 1,83; IC95 por cento: 1,27-2,65). Morar na área urbana está associado à maior prevalência de uso de medicamentos e de polifarmácia entre idosos.

The study aimed to measure use of medication and polypharmacy among the elderly in Carlos Barbosa, Rio Grande do Sul State, Brazil, and to compare socio-demographic, economic, and health characteristics in relation to area of residence (urban versus rural) in a random sample of 811 persons 60 year of age or older. Interviews were used to collect data on socio-demographic characteristics, chronic illnesses, and self-reported use of medications. The association between area of residence and medication or polypharmacy was adjusted for confounders using Poisson regression with robust variance. Prevalence rates for use of medication and polypharmacy were higher among older persons living in the urban area. Living in the urban area was positively and independently associated with use of medication (PR = 1.10; 95 percentCI: 1.02-1.20) and polypharmacy (PR = 1.83; 95 percentCI: 1.27-2.65) in this group of elderly in southern Brazil.