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Objective: The spread of misinformation has accompanied the coronavirus pandemic, including topics such as immune boosting to prevent COVID-19. This study explores how immune boosting is portrayed on the internet during the COVID-19 pandemic., Design: Content analysis., Methods: We compiled a dataset of 227 webpages from Google searches in Canada and the USA using the phrase 'boost immunity' AND 'coronavirus' on 1 April 2020. We coded webpages for typology and portrayal of immune boosting and supplements. We recorded mentions of microbiome, whether the webpage was selling or advertising an immune boosting product or service, and suggested strategies for boosting immunity., Results: No significant differences were found between webpages that appeared in the searches in Canada and the USA. The most common types of webpages were from news (40.5%) and commercial (24.7%) websites. The concept of immune boosting was portrayed as beneficial for avoiding COVID-19 in 85.5% of webpages and supplements were portrayed as beneficial in 40% of the webpages, but commercial sites were more likely to have these portrayals. The top immune boosting strategies were vitamin C (34.8%), diet (34.4%), sleep (34.4%), exercise (30.8%) and zinc (26.9%). Less than 10% of the webpages provide any critique of the concept of immune boosting., Conclusions: Pairing evidence-based advice for maintaining one's health (eg, healthy diet, exercise, sleep) with the phrase immune boosting and strategies lacking in evidence may inadvertently help to legitimise the concept, making it a powerful marketing tool. Results demonstrate how the spread of misinformation is complex and often more subtle than blatant fraudulent claims., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Firefighters appear at an increased risk for post-traumatic stress disorder (PTSD). Because of PTSD-related stigma, firefighters may search for information online. The current study evaluated the quality, readability, and completeness of PTSD online resources, and to determine how the online treatment recommendations align with current evidence. Google.ca (Canada) searches were performed using four phrases: 'firefighter PTSD', 'firefighter operational stress', 'PTSD symptoms', and 'PTSD treatment'. The 75 websites identified were assessed using quality criteria for consumer health information (DISCERN), readability and health literacy statistics, content analysis, and a comparison of treatments mentioned to the current best evidence. The average DISCERN score was 43.8 out of 75 (indicating 'fair' quality), with 9 'poor' websites (16-30), 31 'fair' websites (31-45), 26 "good" websites (46-60), and nine excellent websites (61-75). The average grade level required to understand the health-related content was 10.6. The most mentioned content was PTSD symptoms (48/75 websites) and PTSD treatments (60/75 websites). The most frequently mentioned treatments were medications (41/75 websites) and cognitive behavioural therapy (40/75 websites). Cognitive behavioural therapy is supported by strong evidence, but evidence for medications appears inconsistent in current systematic reviews. Online PTSD resources exist for firefighters, but the information is challenging to read and lacks evidence-based treatment recommendations., Competing Interests: The authors declare no conflict of interest.

Objective: With the rising trend of postponing motherhood, there has been an increasing rate of infertility. Social fertility preservation offers the potential to overcome this age-related infertility, and many women are turning to the Internet to seek medical information. The aim of this study was to evaluate online information on social fertility preservation., Methods: This study used five search terms-"egg freezing," "fertility preservation," "social egg freezing," "social fertility preservation," and "oocyte cryopreservation"-to identify the most popular sites as rated by Google. Accuracy of information and quality of websites were rated on the basis of four categories: Silberg's accountability criteria, Abbott's aesthetic criteria, Flesch-Kincaid readability score, and the Canadian Fertility and Andrology Society (CFAS) and the Society of Obstetricians and Gynaecologists of Canada (SOGC) recommendations (Canadian Task Force classification III)., Results: Study investigators identified the 21 most used websites. The average Silberg score was 6.57, with 85.7% of websites meeting the criteria for adequate accountability. Only one website (4.8%) did not meet the criteria for appropriate aesthetic appeal. The average Flesch-Kincaid readability score was 11.39, equivalent to a grade 11 reading level, which is significantly higher than the reading level of the general population. A total of 57% of websites contained less than half of the evidence-based recommendations provided in CFAS and SOGC recommendations., Conclusion: Online information on social fertility preservation is easily accessible and aesthetically pleasing, but information is not easily readable and does not reflect evidence-based recommendations. Hence, health care professionals must fill the knowledge gaps and adequately counsel their patients to optimize a woman's chance at a successful pregnancy., (Copyright © 2019 The Society of Obstetricians and Gynaecologists of Canada/La Société des obstétriciens et gynécologues du Canada. Published by Elsevier Inc. All rights reserved.)

The quality of information presented on health-related websites-in terms of comprehensiveness, accuracy and consistency-is a public health concern. To date, the consistency of information across Canadian websites devoted to Lyme disease (LD) prevention has not been evaluated. The first aim of this study was to describe the contents and recommendations of LD prevention websites provided by two types of Canadian organizations: government (n = 3) and patient groups (n = 3). A second objective was to analyse the level of convergence among these websites in terms of their prevention-related content. Initial coding of the content resulted in information segments grouped into 114 subthemes related to nine overarching themes: tick habitat suitability, risk period, transmission, personal protection, peridomestic environmental management, tick identification and removal, early symptoms, testing and diagnosis and preventive treatment. Comparative content analyses were performed both within and between the content of websites of the two organization types. The themes most frequently addressed by both organization types were personal protection (20% of the prevention-related content in patient group websites and 22% of the prevention-related content in government websites), transmission (12% and 16%, respectively) and tick identification and removal (19% and 15%, respectively). Government websites' information was generally convergent with that of patient group websites (four highly convergent themes, three moderately convergent and two divergent). Nevertheless, of particular concern were divergent messages and inaccurate information found on 11 subthemes out of 103. Examples included other possible modes of transmission and the ineffectiveness of DEET insect repellent. These results suggest the need for public health and health communications research on the issue of the quality of LD prevention information found on the Internet., (© 2019 Blackwell Verlag GmbH.)

Objective: Combined oral contraceptives (COC) are a popular choice among women. The Internet is an accessible and popular source of information on contraception. The objective of this study was to evaluate the quality of online information on COC., Methods: A quantitative content analysis was completed on websites containing patient health information on COCs. The search was completed in October 2016 using Google; search terms included "birth control pill," "oral contraception," "oral birth control", "birth control," and "pregnancy prevention." The first three pages of search results were screened according to inclusion criteria. The DISCERN instrument and JAMA Benchmarks were used to assess quality. Websites were analyzed independently by two coders; discrepancies were resolved by third coder (Canadian Task Force Classification III)., Results: Of the 155 websites identified, 32 were eligible for review. Most websites mentioned contraceptive benefit (81.3%), and half reported the typical effectiveness of COCs (53.1%). Commonly included non-contraceptive benefits were alleviation of dysmenorrhea (87.5%) and reduced blood loss (84.4%). Risk of venous thromboembolism was listed in 81.3% of websites, including stroke (56.3%) and myocardial infarction (46.9%); however, sites failed to include details with these risks. Only 46.9% provided information on starting COC; the first-day start method was the most common (40.6%). Nearly half lacked details on managing missed pills (46.9%). The mean Flesch-Kincaid Grade Level was 9 ± 2.0. The mean DISCERN score was 46.3 ± 9.37, indicating "fair" quality., Conclusion: Online information on COCs was variable in quality, often missing key information for making informed decisions. Health care providers should be aware of information gaps when advising women to seek information online., (Copyright © 2019 The Society of Obstetricians and Gynaecologists of Canada/La Société des obstétriciens et gynécologues du Canada. Published by Elsevier Inc. All rights reserved.)

Introduction: Men's health research covers a broad range of topics. Men and women face different barriers to health, with men almost universally having a lower life expectancy than women. Access to high-quality information on men's health topics is potentially an important part of engaging men with medical services. We aim to assess the quality of men's health resources available on the internet across 4 developed countries using a tier-based rating system as well as the World Health Organisation Health on the Net (HON) standards., Methods: The Google search engine imbedded with the Health on the Net toolbar was used to assess 357 websites across Australia, Canada, America and United Kingdom using the search term 'men's health'. The websites were further subdivided into 3 tiers by 2 independent investigators, with tier 1 websites defined as government or health organisation sponsored, tier 2 websites defined as being sponsored by health services such as private clinics and insurance providers, and tier 3 websites being websites that did not meet criteria for the first 2 tiers., Results: Overall, 28% of websites were rated as tier 1, 26% as tier 2 and 46% as tier 3. The HONcode accreditation was overall 39% of tier 1 websites. The majority of websites reviewed were in the tier 3 category, and 35% of overall websites being non-health or non-medically related., Discussion: The lack of 'relevant' and HONcode-accredited websites relating to men's health should be appreciated by health care professionals.

Background: Nutrigenetic tests are often considered to be less serious compared to other health-related genetic tests, although they share similar ethical concerns. Nutrigenetic tests are mainly available through direct-to-consumer genetic testing (DTC GT) and increasing in popularity., Objective: To analyze the contents of nutrigenetic DTC GT websites with respect to the adequacy of the information provided to support a well-informed decision of purchasing the tests., Methods: The websites of DTC GT companies selling nutrigenetic tests that could be ordered online without involving any healthcare professional, available in English, marketing tests in Europe, the USA, Australia, or Canada, and accessible from Finland were included in the study (n = 38). Quantitative and qualitative content analyses of the websites were carried out with the help of a codebook., Results: Of the 38 websites, 8 included a clearly identifiable and easy-to-find information section about genetics. The quality and contents of these sections were often insufficient and/or misleading. Fourteen websites had specific sections discussing the risks related to GT, and on 13 signed informed consent was requested for GT. Furthermore, only 2 of the companies offered any kind of pretest consultation and 13 offered mostly separately charged posttest consultation. The complex structure of the websites made it difficult to find all key information, with many important aspects buried in legal documents, which were challenging to comprehend even for a professional., Conclusion: The structure of the websites and the amount and quality of the content therein do not support a well-informed decision., (© 2019 S. Karger AG, Basel.)

Objective: To assess the content and readability of online patient information resources against the current understanding of gout., Methods: An online survey was undertaken using Google UK, USA, Australia, and Canada. Information was assessed for content and accuracy on 19 key points regarding core content for gout patient information resources. Readability was assessed using the Flesch-Kincaid Reading Ease score. Fifteen randomly selected websites were reviewed by a blinded second observer., Results: A total of 85 websites were selected. More than 50% of the websites provided no information or had inaccuracies regarding the pathogenesis of gout. Most websites contained information on dietary and lifestyle modifications for treating gout and did not emphasize urate-lowering therapy (ULT) and its potential for cure. Over 75% of the websites had no/inaccurate information on the role of ULT or prophylaxis for preventing gout attacks on starting ULT. The majority of websites were difficult to read, with information in 68% of the websites rated at least fairly difficult., Conclusion: Only a few web-based patient information resources provide accurate and easy-to-read information on gout. This study will help physicians direct patients to currently reliable resources, but there is a need to improve many web-based patient information resources, which at present act as barriers to care., (© 2016, American College of Rheumatology.)

Purpose: Data from the Canadian Community Health Survey showed that calcium, vitamin D, iron, and folate are nutrients of concern for females 19-50 years of age. The study objectives were to assess the quantity, format, and accuracy of messages related to these nutrients in selected Canadian magazines and to examine their congruency with Canadian nutrition policies., Methods: Using content analysis methodology, messages were coded using a stratified sample of a constructed year for Canadian Living, Chatelaine, and Homemakers magazines (n = 33) from 2003-2008. Pilot research was conducted to assess inter-coder agreement and to develop the study coding sheet and codebook., Results: The messages identified (n = 595) averaged 18 messages per magazine issue. The most messages were found for calcium, followed by folate, iron, and vitamin D, and the messages were found primarily in articles (46%) and advertisements (37%). Overall, most messages were coded as accurate (82%) and congruent with Canadian nutrition policies (90%)., Conclusions: This research demonstrated that the majority of messages in 3 Canadian magazines between 2003 and 2008 were accurate and reflected Canadian nutrition policies. Because Canadian women continue to receive much nutrition information via print media, this research provides important insights for dietitians into media messaging.

Objective: To evaluate the self-rated health (SRH) status among college students who reported receiving the majority of their health-related information from health educators., Participants: Students (n = 49,921) who completed the 2006 National College Health Association survey., Methods: Bivariate associations between SRH and the believability of health information received were analyzed. Multiple logistic regression tested the relationship after covariate adjustment., Results: Although a modest correlation (r = .06, p < .0001) existed between the variables, SRH declined as the believability of health information received from health educators ratings became increasingly unfavorable (χ(2) = 110.96, p < .0001). After covariate adjustment, the relationship persisted with increased odds of reporting fair/poor health for those who reported the health information received from health educators as "neutral" (odds ratio [OR] = 1.31) or "unbelievable" (OR = 2.25) when compared to those who reported the health information received as "believable" (p < .0001)., Conclusions: The field of health education, and health educators, may positively influence college student SRH.