BackgroundThe knowledge on health interests of a given population of Internet users might contribute to the increase of evidence on community’s dental needs, and consequently, to the improvement of public health planning. The frequency of searches for specific issues on Google can be analyzed by the application of Google Trends.AimIn this study, we aimed to characterize the interests on toothache information of Google users from the United States, United Kingdom, Australia and Brazil.MethodsThe monthly variation of relative search volume (RSV) and the lists of main toothache-related queries were determined from January 2004 through April 2016 using Google Trends. Autoregressive Integrated Moving Average (ARIMA) forecasting models were developed to determine predictive RSV values for toothache for additional 12 months. Autocorrelation plots and general additive model (GAM) were applied to determine trends and seasonality in RSV curves. Through linear regression models, we assessed the association between the variation of annual means of RSV values and national statistics for toothache in the U.S. and U.K. Subsequently, the distribution of main queries according to the identification of endodontic pain, type of searching information, and the interest in self-management of toothache was evaluated for the four countries.ResultsThe autocorrelation plots showed patterns of non-stationary time series. The monthly variation influenced the data of the U.S. and U.K., with the higher RSV values found respectively in January/July and December. Also, the interest on toothache in the U.K. increases in the second semester and in the fourth quarter, especially in December. Additionally, an annual variation affected significantly all time series, with the increment of RSV means over the years, varying from 265% in the U.S. to 745% in Brazil. In parallel, the increments in RSV values were also observed in all predictive curves. The annual variation of observed and fitted RSV values was directly associated with the increase of toothache visits in the U.S. and urgent dental treatments in the U.K. Moreover, the queries typed on Google were markedly linked to searches on endodontic pain information, especially in Brazil, where the residents usually searched for relief and/or self-management of pain.ConclusionsTherefore, these findings indicate an increasing interest of Google users on toothache-related topics, regardless of country and season. The Internet activity can be used by policy makers as a complementary source of data for the development and implementation of strategies to control and prevent toothache complications.
BackgroundThe misunderstanding of specific vocabulary may hamper the patient-health provider communication. The 20-item Rapid Estimate Adult Literacy in Medicine and Dentistry (REALMD-20) was constructed to screen patients by their ability in reading medical/dental terminologies in a simple and rapid way. This study aimed to perform the cross-cultural adaptation and validation of this instrument for its application in Brazilian dental patients.MethodsThe cross-cultural adaptation was performed through conceptual equivalence, verbatim translation, semantic, item and operational equivalence, and back-translation. After that, 200 participants responded the adapted version of the REALMD-20, the Brazilian version of the Rapid Estimate of Adult Literacy in Dentistry (BREALD-30), ten questions of the Brazilian National Functional Literacy Index (BNFLI), and a questionnaire with socio-demographic and oral health-related questions. Statistical analysis was conducted to assess the reliability and validity of the REALMD-20 (P < 0.05).ResultsThe sample was composed predominantly by women (55.5%) and white/brown (76%) individuals, with an average age of 39.02 years old (±15.28). The average REALMD-20 score was 17.48 (±2.59, range 8–20). It displayed a good internal consistency (Cronbach’s alpha = 0.789) and test-retest reliability (ICC = 0.73; 95% CI [0.66 − 0.79]). In the exploratory factor analysis, six factors were extracted according to Kaiser’s criterion. The factor I (eigenvalue = 4.53) comprised four terms— “Jaundice”, “Amalgam”, “Periodontitis” and “Abscess”—accounted for 25.18% of total variance, while the factor II (eigenvalue = 1.88) comprised other four terms—“Gingivitis”, “Instruction”, “Osteoporosis” and “Constipation”—accounted for 10.46% of total variance. The first four factors accounted for 52.1% of total variance. The REALMD-20 was positively correlated with the BREALD-30 (Rs = 0.73, P < 0.001) and BNFLI (Rs = 0.60, P < 0.001). The scores were significantly higher among health professionals, more educated people, and individuals who reported good/excellent oral health conditions, and who sought preventive dental services. Distinctly, REALMD-20 scores were similar between both participants who visited a dentist <1 year ago and ≥1 year. Also, REALMD-20 was a significant predictor of self-reported oral health status in a multivariate logistic regression model, considering socio-demographic and oral health-related confounding variables.ConclusionThe Brazilian version of the REALMD-20 demonstrated adequate psychometric properties for screening dental patients in relation to their recognition of health specific terms. This instrument can contribute to identify individuals with important dental/medical vocabulary limitations in order to improve the health education and outcomes in a person-centered care model.
The diagnosis or suspicion of dental caries can lead people to seek additional information on the Internet through the use of structured queries in search engine tools. This action generates a considerable volume of data, which can be analyzed to provide a better understanding of the public's behavior linked to the consumption of oral health information. This study aimed to assess the volume and profile of web searches on dental caries-related queries performed by Google users from different countries. The monthly variation of the Search Volume Index (SVI) for dental caries was obtained in Google Trends for the period between January 2004 and September 2016. The validity of SVI data was assessed by their levels of stability and correlation with the disability-adjusted life-years (DALYs) for permanent teeth. In all countries, a trend of an increasing interest of Google users in dental caries issues was revealed by the comparison of the means observed in the predictive models and those in the last 12 months. The interest levels varied throughout the year, with the observation of the highest SVI values in the spring and the lowest in the summer. The most popular queries were markedly associated with symptoms and treatments, with a little interest in prevention. In conclusion, the use of Internet data mining could be helpful in establishing the dental needs of specific population groups in a near real-time, since the web consumption of dental information is increasing in importance and appears to have a direct relation with untreated dental caries.
Aim-To compare the attitudes of students towards the necropsy at different stages of their undergraduate career. Method-Students in the first, fourth and sixth academic years (n = 283) were asked to respond anonymously to a questionnaire comprised of 26 attitude statements. These statements dealt with the importance of the necropsy in medicine, rapport with the bereaved family and emotional reactions to the necropsy. Results-Of the students, 226 (80%) completed the questionnaire. Overall, the students agreed on the importance of the necropsy. The three groups differed in 10 statements on the approach to the bereaved family and emotional reactions to the necropsy. First year students showed more personal involvement and would have more difficulties in approaching the family ofthe deceased as well as in attending a necropsy. These reactions were increasingly less noticeable with fourth and sixth year students. The latter group was also more inclined to accept cremation, organ donation and necropsy of their own corpses. Conclusion-The changes in attitudes towards the necropsy throughout undergraduate study may reflect both the influence of psychological defense mechanisms and the viewing of necropsy as a relevant tool in medical practice. Necropsy should be carefully and sensitively incorporated into programmes designed to teach students about death and dying. This might reduce both their reluctance to seek permission for necropsy and their difficulty in looking after the dying patient. (7 Clin Pathol 1997;50:64-66 MethodsAll first, fourth and sixth year medical students (n = 99, 99 and 85, respectively) at the State University of Campinas, Campinas, Brazil, were asked to respond anonymously to a questionnaire comprised of 26 attitude statements on necropsy. The questions dealt with three main topics: (1) the importance ofthe necropsy in medicine; (2) rapport with the bereaved family; and (3) emotional reactions to the necropsy. The questionnaire was compiled from statements from previously published papers,' 8 as well as comments from a panel of medical students, clinicians and pathologists. Pilot versions of the questionnaire were tested twice with a group of medical students not participating in the main study.The attitudes were measured using visual analogue scales (VAS)-that is, a 100 mm line representing a continuum of attitudes ranging from "strongly disagree" at one end to "strongly agree" at the other. The VAS were measured in millimetres. Non-parametric statistics (the Kruskal-Wallis and Mann-Whitney tests) were used to evaluate differences among the groups. In order to minimise the occurrence of type II errors resulting from many tests being done smultaneously, we adopted the procedure suggested by Schweder and Spjotvoll.9 The students' age, sex, religious background, and attendance at necropsies were also recorded. ResultsTwo hundred and twenty eight students, corresponding to 75%, 91% and 75% of the first, fourth and sixth year students, respectively, completed the questionnaire (table 1). Mos...
Aim To determine the interests of Google users in information about amber necklace in distinct countries over time. Design This longitudinal retrospective study analyzed the amber necklace‐related computational data generated from the activity of Google users from17 countries, by the application of Google Trends. Four search strategies were defined in English, Spanish, Portuguese, and Italian, for retrieving the monthly variation of relative search volume (RSV) between January 2004 and September 2018, including all categories and sources of search. Trends and 12‐month predictive interests of users were analyzed by forecasting autoregressive integrated moving average models, while the influences of seasonality were evaluated by generalized additive models. The most popular queries employed for Google users were determined to qualitative analysis. P values < 0.05 were considered significant. Results In general, RSV curves were characterized by uptrends in most studied countries over the years, without the influence of monthly or quarterly seasonality. The queries were frequently associated with a desire for additional information, with respect to the definition, usability, and teething symptoms relief promoted by amber jewelries. Conclusions These findings indicate an increasing interest of Google users in amber necklace‐related topics in different countries.
Background The preferences of Web users can be influenced by distinct factors of populations. Hence, hypothetically, source-based patterns of health-related Web searches might differ between individuals from developed and developing countries, due to their distinct educational, social, economic, political, cultural, and psychosocial backgrounds. In this context, this study aimed to determine the trends of toothache-related searches performed on Google Search and YouTube, regarding differences between developed and developing countries. Methods This retrospective longitudinal study analyzed computational metadata on toothache-related interests of Internet users. Google Trends was accessed to obtain the monthly variation of relative search volume (RSV) of the topic “Toothache-Disease” on Google (G) and YouTube (YT) through 2008–2017. Autocorrelation and partial autocorrelation plots, ARIMA models, Kruskal–Wallis, Dunn’s and T tests were performed for evaluating trends, 12-month forecasts and the differences of annual ratios of YT/G searches between developed and developing countries, respectively (P < 0.05). Results Uptrends of RSVs were observed in both country groups over time, although 12-month forecasts tended to plateau.The volumes of searches were higher in developed countries in comparison to developing ones; however, this difference was not observed regarding Google searches performed between 2016 and 2017. Independently of country groups, the ratios YT/G remained relatively constant throughout the period, indicating a greater interest in toothache-related information available on Google. Conclusion In conclusion, toothache-related searches from Google and YouTube increased during the last decade. The preferences of Web users seemed to be influenced by the differences between developed and developing countries, such as the availability and penetration of the Internet, and education levels.
BackgroundEarly childhood caries (ECC) affects about 621 million children worldwide, causing chronic pain, infections, sleeping disorders, and tooth extraction.AimTo determine perspectives of parents and caregivers of preschoolers regarding ECC.DesignThree focus groups were conducted with attendees of the Clinics of Paediatric Dentistry from the Bauru School of Dentistry. The meetings were video‐ and audio‐recorded, and the contents were transcribed verbatim. Then, textual passages were examined and coded using the software NVivo 12 Plus.ResultsThe participants associated the presence of dental caries lesions with negative consequences for children, such as problems for permanent dentition, discrimination, and psychological damages. Although regular oral hygiene and healthy diet were recognized as important factors for the prevention of ECC, specific doubts about feeding, toothpaste usage, oral hygiene, and dental eruption were detected among parents. Additionally, they declared that their children brush teeth alone, intake fermentable carbohydrates frequently, and sleep during breastfeeding without dental plaque removal, because uncooperativeness, permissiveness, and convenience.ConclusionsBased on these results, parents and caregivers understand the unfavourable effects of ECC on children's quality of life; however, their attitudes against the disease seemed to be inaccurate, influenced by their daily routines, doubts, and beliefs.
BackgroundDental caries is the most common chronic oral disease, affecting 2.4 billion people worldwide who on average have 2.11 decayed, missing, or filled teeth. It impacts the quality of life of patients, socially and economically. However, the comprehension of dental caries may be difficult for most people, as it involves a multifactorial etiology with the interplay between the tooth surface, the dental biofilm, dietary fermentable carbohydrates, and genetic and behavioral factors. Therefore, the production of effective materials addressed to the education and counseling of patients for the prevention of dental caries requires a high level of specialization. In this regard, the dental caries-related contents produced by laypersons and their availability on the Internet may be low-quality information.ObjectiveThe aim of this study was to assess the readability and the quality of dental caries-related information on Brazilian websites.MethodsA total of 75 websites were selected through Google, Bing, Yahoo!, and Baidu. The websites were organized in rankings according to their order of appearance in each one of the 4 search engines. Furthermore, 2 independent examiners evaluated the quality of websites using the DISCERN questionnaire and the Journal of American Medical Association (JAMA) benchmark criteria. The readability of the websites was assessed by the Flesch Reading Ease adapted to Brazilian Portuguese (FRE-BP). In addition, the information presented on the websites was categorized as etiology, prevention, and treatment of dental caries. The statistical analysis was performed using Spearman rank correlation coefficient, Mann-Whitney U test, hierarchical clustering analysis by Ward minimum variance method, Kruskal-Wallis test, and post hoc Dunn test. P<.05 was considered significant.ResultsThe Web contents were considered to be of poor quality by DISCERN (mean 33.48, standard deviation, SD 9.06) and JAMA (mean 1.12, SD 0.97) scores, presenting easy reading levels (FRE-BP: mean 62.93, SD 10.15). The rankings of the websites presented by Google (ρ=−.22, P=.08), Baidu (ρ=−.19, P=.53), Yahoo! (ρ=.22, P=.39), and Bing (ρ=−.36, P=.23) were not correlated with DISCERN scores. Moreover, the quality of websites with health- and nonhealth-related authors was similar (P=.27 for DISCERN and P=.47 for JAMA); however, the pages with a greater variety of dental caries information showed significantly higher quality scores than those with limited contents (P=.009).ConclusionsOn the basis of this sample, dental caries-related contents available on Brazilian websites were considered simple, accessible, and of poor quality, independent of their authorship. These findings indicate the need for the development of specific policies focused on the stimulus for the production and publication of Web health information, encouraging dentists to guide their patients in searching for recommended oral health websites.
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