Maria Grandahl

Dr. Maria Grandahl

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Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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19 August 2021 in Viruses
Verified
Journal Article
Open access
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MGMaria Grandahl
Maria Grandahl
TNTryggve Nevéus
Tryggve Nevéus
Background: HPV vaccination of both girls and boys can protect against infection and eliminate the risk for HPV-associated cancer. Due to a common misconception that the virus only poses risks to women, vaccine coverage is suboptimal among men in many countries. It is urgent to identify barriers to vaccination of boys and men. Methods: We conducted a narrative review of publications examining attitudes and beliefs regarding HPV vaccination for boys and young men. The electronic databases searched were PubMed, PsychInfo and Scopus (December 2020; last update July 2021). A total of 103 original articles were included in the final analysis. Results: The central barriers against vaccination of boys and men are: (1) lack of knowledge, (2) vaccine hesitancy in general, (3) lack of recommendation from and/or discussions with healthcare providers, (4) cost and logistics, and (5) the idea that HPV vaccination may promote promiscuity. Men who have sex with men and families belonging to ethnic minorities express a need for information tailored to their situation. Conclusions: Boys should be included in national immunization programs and men should also be offered catch-up vaccinations. Future studies should focus on addressing vaccine hesitancy and developing interventions to promote pan-gender HPV vaccination.

15 February 2018 in PLOS ONE
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Journal Article
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MGMaria Grandahl
Maria Grandahl
SPSeung Chun Chun Paek
Seung Chun Chun Paek
SGSiriwan Grisurapong
Siriwan Grisurapong
PSPenchan Sherer
Penchan Sherer
TTTanja Tydén
Tanja Tydén
PLPranee Lundberg
Pranee Lundberg
Thailand has one of the world’s highest prevalence of cervical cancer, mainly caused by the human papillomavirus (HPV). HPV infections can successfully be prevented by vaccination, which is available at a cost but not yet implemented in the national vaccination program. Parents play a critical role in deciding whether to vaccinate their child against HPV. Thus, the aim was to examine the association between parents’ knowledge, beliefs, and acceptance of the HPV vaccination for their daughters, considering their socio-demographics and religious beliefs. A cross-sectional design was used among three schools in Thailand: Nakorn Phatom province (suburban) and Bangkok (urban). Parents of 9–12-year-old daughters completed the questionnaires, guided by the Health Belief Model. In total, 359 parents completed the questionnaires; of those, 301 were included in the final analyses. The ordinary least squares (OLS) regression analysis showed that background knowledge of HPV and the HPV vaccine was positively related to knowledge of HPV and cervical cancer. For beliefs, knowledge was positively associated with susceptibility (i.e., parents’ perceived risk of an HPV infection/ related disease), severity, and benefit. However, knowledge was not significantly related to barriers. For acceptance, higher susceptibility and benefit were related to higher acceptance, and greater knowledge was associated with higher acceptance. Thus, we found associations between parents’ knowledge, beliefs, and acceptance of the HPV vaccination for their daughters, considering their socio-demographics and religious beliefs. Parents, who reported religion as important, as opposed to those who did not, were more favorable toward the HPV vaccination. Four out of ten mothers had never undergone a cervical cancer screening, but most had accepted previous childhood vaccinations for their daughters. The overall acceptance of the vaccine was high, and we believe our results are promising for future implementation of the HPV vaccination in the national childhood vaccination program in Thailand.

27 January 2016 in BMJ Open
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Journal Article
Open access
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MGMaria Grandahl
Maria Grandahl
ARAndreas Rosenblad
Andreas Rosenblad
CSChristina Stenhammar
Christina Stenhammar
TTTanja Tydén
Tanja Tydén
RWRagnar Westerling
Ragnar Westerling
TNTryggve Nevéus
Tryggve Nevéus
Objective: To improve primary prevention of human papillomavirus (HPV) infection by promoting vaccination and increased condom use among upper secondary school students.Design: Cluster randomised controlled trial.Setting: 18 upper secondary schools in Sweden.Participants: Schools were first randomised to the intervention or the control group, after which individual classes were randomised so as to be included or not. Of the 832 students aged 16 years invited to participate during the regular individual health interview with the school nurse, 751 (90.2%) agreed to participate and 741 (89.1%) students completed the study.Interventions: The intervention was based on the Health Belief Model (HBM). According to HBM, a person's health behaviour can be explained by individual beliefs regarding health actions. School nurses delivered 30 min face-to-face structured information about HPV, including cancer risks and HPV prevention, by propagating condom use and HPV vaccination. Students in the intervention and the control groups completed questionnaires at baseline and after 3 months.Main outcome measures: Intention to use condom with a new partner and beliefs about primary prevention of HPV, and also specifically vaccination status and increased condom use.Results: All statistical analyses were performed at the individual level. The intervention had a significant effect on the intention to use condom (p=0.004). There was also a significant effect on HBM total score (p=0.003), with a 2.559 points higher score for the intervention group compared to the controls. The influence on the HBM parameterssusceptibilityandseveritywas also significant (p<0.001 for both variables). The intervention also influenced behaviour: girls in the intervention group chose to have themselves vaccinated to a significantly higher degree than the controls (p=0.02). No harms were reported.Conclusions: The school-based intervention had favourable effects on the beliefs about primary prevention of HPV, and increased the HPV vaccination rates in a diverse population of adolescents.Trial registration number: NCT02280967; Results.

4 December 2016 in Journal of School Health
Verified
Journal Article
Open access
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MGMaria Grandahl
Maria Grandahl
TTTanja Tydén
Tanja Tydén
RWRagnar Westerling
Ragnar Westerling
TNTryggve Nevéus
Tryggve Nevéus
ARAndreas Rosenblad
Andreas Rosenblad
MOMarie Oscarsson
Marie Oscarsson
BACKGROUND: Parents' beliefs about human papillomavirus (HPV) vaccination influence whether they allow their daughters to be vaccinated. We examined the association between parents' refusal and sociodemographic background, knowledge and beliefs about HPV, and the HPV vaccination in relation to the Health Belief Model.METHODS: The sample consisted of 200 (55%) parents of children aged 11‐12 years in the Swedish national vaccination program. Data were collected using a self‐reported questionnaire. Most parents (N = 186) agreed to the vaccination. Pearson's chi‐square, Fisher's exact test, and the Mann‐Whitney U test were used to analyze data.RESULTS: Declining parents saw more risks and fewer benefits of HPV vaccination but no differences in beliefs regarding the severity or young girls' susceptibility to HPV were found. There was an association between refusing the HPV vaccine and lower acceptance of previous childhood vaccinations, and their main source of information was the Internet. Parents who declined the vaccine believed it could adversely affect condom use, the age of their daughter's sexual debut, and the number of sexual partners.CONCLUSION: Parents should have the possibility to discuss HPV and HPV vaccine with a school nurse or other health care professionals, and should have access to evidence‐based information on the Internet.

16 December 2012 in Health Expectations
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Journal Article
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MGMaria Grandahl
Maria Grandahl
TTTanja Tydén
Tanja Tydén
MGMaria Gottvall
Maria Gottvall
RWRagnar Westerling
Ragnar Westerling
MOMarie Oscarsson
Marie Oscarsson
Background: Many Western countries have cervical cancer screening programmes and have implemented nation‐wide human papillomavirus (HPV) vaccination programmes for preventing cervical cancer.Objective: To explore immigrant women's experiences and views on the prevention of cervical cancer, screening, HPV vaccination and condom use.Design: An exploratory qualitative study. The Health Belief Model (HBM) was used as a theoretical framework.Setting and participants: Eight focus group interviews, 5–8 women in each group (average number 6,5), were conducted with 50 women aged 18–54, who studied Swedish for immigrants. Data were analysed by latent content analysis.Results: Four themes emerged: (i) deprioritization of women's health in home countries, (ii) positive attitude towards the availability of women's health care in Sweden, (iii) positive and negative attitudes towards HPV vaccination, and (iv) communication barriers limit health care access. Even though the women were positive to the prevention of cervical cancer, several barriers were identified: difficulties in contacting health care due to language problems, limited knowledge regarding the relation between sexual transmission of HPV and cervical cancer, culturally determined gender roles and the fact that many of the women were not used to regular health check‐ups.Conclusion: The women wanted to participate in cervical cancer prevention programmes and would accept HPV vaccination for their daughters, but expressed difficulties in understanding information from health‐care providers. Therefore, information needs to be in different languages and provided through different sources. Health‐care professionals should also consider immigrant women's difficulties concerning cultural norms and pay attention to their experiences.

8 January 2014 in Acta Paediatrica
Verified
Journal Article
Open access
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MGMaria Grandahl
Maria Grandahl
MOMarie Oscarsson
Marie Oscarsson
CSChristina Stenhammar
Christina Stenhammar
TNTryggve Nevéus
Tryggve Nevéus
RWRagnar Westerling
Ragnar Westerling
TTTanja Tydén
Tanja Tydén
Aim: To explore why parents refused to allow their 10‐ to 12‐year‐old daughters to receive the human papillomavirus (HPV) vaccination from the Swedish school‐based vaccination programme.Methods: Individual interviews with 25 parents who had been offered, but not consented to, their daughters receiving the HPV vaccination.Results: Five themes emerged through the interviews: 1) she is just a little girl, 2) inadequate information, 3) not compatible with our way of life, 4) scepticism about the vaccination and 5) who can you trust? The parents made their decisions with their child's best interests in mind. This was not considered the right time, and the vaccine was perceived as unnecessary and different from other vaccines. Mistrust in Government recommendations and a lack of evidence or information were other reasons to decline.Conclusion: The decision‐making process was complex. These parents preferred to wait until their daughter was older and believed the information they received from the school health system was insufficient. The results indicate that a more flexible HPV vaccination schedule may improve vaccine uptake. This includes more transparent information about the virus and the vaccine and information about who to contact to get the daughter vaccinated at a later date.