Abstract
Cancer literacy is currently one of the most important dimensions of cancer continuum. Objective assessment of cancer knowledge in populations remains a challenging field to public health entities. Different evaluation tools are currently available; still, some groups remain disregarded due to the absence of validated instruments. Cancer literacy in adolescents and young adults has been clearly overlooked being a subject that requires new tools to be properly studied. To address this topic, we developed a new instrument and field tested it in a classroom environment for internal reliability, construct, and face validity. “Students Knowledge and Perceptions about Cancer questionnaire” was designed in Portuguese language and adapted to the Portuguese context by a multidisciplinary team. The final version of the questionnaire includes 35 items organized in three sections, encompassing knowledge and perceptions about cancer and socio-biographic data. Cancer experts ensured content validity, while tailoring of contents was refined with high school teachers. Test and retest of the instrument showed a good reliability of the scale and construct validity. Also, the clarity of the questionnaire and suitability to proper evaluate cancer knowledge was consistent between test and retest. The Students’ Knowledge and Perceptions About Cancer Questionnaire (SKPaC) showed to be a valid tool to assess adolescents’ knowledge and perceptions about cancer that can be used in the educational context.
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References
Bray F, Jemal A, Grey N, Ferlay J, Forman D (2012) Global cancer transitions according to the Human Development Index (2008–2030): a population-based study. Lancet Oncol 13:790–801
Jemal A, Bray F, Center MM, Ferlay J, Ward E, Forman D (2011) Global cancer statistics. CA Cancer J Clin 61:69–90
Sener SF, Grey N (2005) The global burden of cancer. J Surg Oncol 92:1–3
Chang S, Collie CL (2009) The future of cancer prevention: will our workforce be ready? Cancer Epidemol Biomarkers Prev 18:2348–2351
Diviani N, Schulz PJ (2011) What should laypersons know about cancer? Towards an operational definition of cancer literacy. Patient Educ Couns 85:487–492
Colditz GA, Wei EK (2012) Preventability of cancer: the relative contributions of biologic and social and physical environment determinants of cancer mortality. Annu Rev Publ Health 33:137–156
Hawkins NA, Berkowitz Z, Peipins LA (2010) What does the public know about preventing cancer? Results from the Health Information National Trends Survey (HINTS). Health Educ Behav 37:490–503
Diviani N, Schulz PJ (2014) Association between cancer literacy and cancer-related behaviour: evidence from Ticino, Switzerland. J Public Health Res 3:295
Nutbeam D (2000) Health literacy as a public health goal: a challenge for contemporary health education and communication strategies into the 21st century. Health Promot Int 15:259–267
Matsuyama RK, Wilson-Genderson M, Kuhn L, Moghanaki D, Vachhani H, Paasche-Orlow M (2011) Education level, not health literacy, associated with information needs for patients with cancer. Patient Educ Couns 85:e229-e236
Merriman B, Ades T, Seffrin JR (2002) Health literacy in the information age: communicating cancer information to patients and families. CA Cancer J Clin 52:130–133
Davis TC, Williams MV, Marin E, Parker RM, Glass J (2002) Health literacy and cancer communication. CA Cancer J Clin 52:134–149
Wolf MS, Chang CH, Davis T, Makoul G (2005) Development and validation of the Communication and Attitudinal Self-Efficacy scale for cancer (CASE-cancer). Patient Educ Couns 57:333–341
Diviani N, Schulz PJ (2012) First insights on the validity of the concept of cancer literacy: a test in a sample of Ticino (Switzerland) residents. Patient Educ Couns 87:152–159
Mazor KM, Roblin DW, Williams AE, Greene SM, Gaglio B, Field TS, Costanza ME, Han PKJ, Saccoccio L, Calvi J, Cove E, Cowan R (2012) Health literacy and cancer prevention: two new instruments to assess comprehension. Patient Educ Couns 88:54–60
Mazor KM, Rogers HJ, Williams AE, Roblin DW, Gaglio B, Field TS, Greene SM, Han PKJ, Costanza ME (2012) The cancer message literacy tests: psychometric analyses and validity studies. Patient Educ Couns 89:69–75
Stubbings S, Robb K, Waller J, Ramirez A, Austoker J, Macleod U, Hiom S, Wardle J (2009) Development of a measurement tool to assess public awareness of cancer. Br J Cancer 101:S13–S17
Dumenci L, Matsuyama R, Riddle DL, Cartwright LA, Perera RA, Chung H, Siminoff LA (2014) Measurement of cancer health literacy and identification of patients with limited cancer health literacy. J Health Commun 19:205–224
Koay K, Schofield P, Jefford M (2012) Importance of health literacy in oncology. Asia-Pac J Clin Oncol 8:14–23
Sprinthall NA, Collins WA (1994) Adolescent psychology: a developmental view. McGraw-Hill
Ghaddar SF, Valerio MA, Garcia CM, Hansen L (2012) Adolescent health literacy: the importance of credible sources for online health information. J Sch Health 82:28–36
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The authors are grateful to all the schools and their students that participated in this study.
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AB, LM, HS, NR, and FSS conceived and designed the study. AB, NR, and FSS performed the study. AB, LM, HS, and FSS analyzed the data. All authors helped to draft the manuscript, read, and approved the final manuscript.
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Additional File 1
Questionnaire “Students Knowledge about Cancer” (DOCX 112 kb)
Additional File 2
Students’ sample characterization (DOCX 16 kb)
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Barros, A., Moreira, L., Santos, H. et al. Development of a Measurement Tool to Assess Students’ Knowledge and Perceptions About Cancer (SKPaC). J Canc Educ 34, 556–561 (2019). https://doi.org/10.1007/s13187-018-1341-9
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DOI: https://doi.org/10.1007/s13187-018-1341-9