{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T02:41:08Z","timestamp":1772937668957,"version":"3.50.1"},"reference-count":48,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2022,7,3]],"date-time":"2022-07-03T00:00:00Z","timestamp":1656806400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>This study aimed to assess adolescents\u2032 Mental Health Literacy (MHL) level, Positive Mental Health (PMH) level, the association between sociodemographic variables and the MHL and PMH levels, and the relationship between adolescent\u2032s MHL and PMH levels. A quantitative, cross-sectional, correlational study was conducted with a convenience sample of 260 adolescents studying in the 5th to 12th years of school. The Mental Health Knowledge Questionnaire, the Mental Health-Promoting Knowledge, and the Positive Mental Health Questionnaire were used for data collection. Most of the adolescents were female (55.8%) with a mean age of 14.07 years. The participants showed good levels of MHL (MHKQ). The participants showed good levels of MHL (MHKQ \ud835\ude39\u00af = 60.03; MHPK-10 \ud835\ude39\u00af = 4.49) and high levels of PMH (\ud835\ude39\u00af = 128.25). The adolescents with higher levels of MHL were the oldest, in a higher year of school, female, those whose mothers are employed, those who have healthy eating habits, and those who have a better body image self-perception. Adolescents in a lower year of school, with adequate sleep habits, who spend fewer hours a day in front of a screen or online, and who have a better self-perception of mental and physical health and body image were the ones with higher PMH levels. These findings suggest the need to implement experimental or quasi-experimental studies to ascertain the effectiveness of interventions that promote adolescents\u2032 positive mental health literacy.<\/jats:p>","DOI":"10.3390\/ijerph19138165","type":"journal-article","created":{"date-parts":[[2022,7,3]],"date-time":"2022-07-03T22:50:46Z","timestamp":1656888646000},"page":"8165","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Mental Health Literacy and Positive Mental Health in Adolescents: A Correlational Study"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8125-5384","authenticated-orcid":false,"given":"Joana","family":"Nobre","sequence":"first","affiliation":[{"name":"Health School, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"},{"name":"Faculty of Nursing, University of Rovira i Virgili, 43003 Tarragona, Spain"},{"name":"Nursing Research Unit for South and Islands (NURSE\u2019IN), 2914-503 Setubal, Portugal"},{"name":"VALORIZA\u2014Research Centre for Endogenous Resource Valorization, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"}]},{"given":"Ant\u00f3nio","family":"Calha","sequence":"additional","affiliation":[{"name":"VALORIZA\u2014Research Centre for Endogenous Resource Valorization, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"},{"name":"School of Education and Social Sciences, Polytechnic Institute of Portalegre, 7300-109 Portalegre, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1092-7825","authenticated-orcid":false,"given":"Henrique","family":"Luis","sequence":"additional","affiliation":[{"name":"Health School, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"},{"name":"Unidade de Investiga\u00e7\u00e3o em Ci\u00eancias Orais e Biom\u00e9dicas (UICOB), Faculdade de Medicina Dent\u00e1ria, Universidade de Lisboa, Rua Teresa Ambr\u00f3sio, 1600-277 Lisbon, Portugal"},{"name":"Center for Innovative Care and Health Technology (ciTechcare), Polytechnic of Leiria, 2410-541 Leiria, Portugal"}]},{"given":"Ana Paula","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Health School, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"},{"name":"Faculty of Nursing, University of Rovira i Virgili, 43003 Tarragona, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4100-430X","authenticated-orcid":false,"given":"Francisco","family":"Monteiro","sequence":"additional","affiliation":[{"name":"Health School, Polytechnic Institute of Portalegre, 7300-555 Portalegre, Portugal"}]},{"given":"Carme","family":"Ferr\u00e9-Grau","sequence":"additional","affiliation":[{"name":"Faculty of Nursing, University of Rovira i Virgili, 43003 Tarragona, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5620-3478","authenticated-orcid":false,"given":"Carlos","family":"Sequeira","sequence":"additional","affiliation":[{"name":"Group Inovation and Development in Nursing (NursID), Centro de Investiga\u00e7\u00e3o em Tecnologias e Servi\u00e7os de Sa\u00fade (CINTESIS), 4200-450 Porto, Portugal"},{"name":"Nursing School of Porto, 4200-072 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1650","DOI":"10.1093\/ije\/dyz006","article-title":"Changes in Millennial Adolescent Mental Health and Health-Related Behaviours over 10 Years: A Population Cohort Comparison Study","volume":"48","author":"Patalay","year":"2019","journal-title":"Int. J. Epidemiol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1311","DOI":"10.1007\/s00127-018-1604-0","article-title":"Development and Predictors of Mental Ill-Health and Wellbeing from Childhood to Adolescence","volume":"53","author":"Patalay","year":"2018","journal-title":"Soc. Psychiatry Psychiatr. Epidemiol."},{"key":"ref_3","first-page":"23","article-title":"Finding Space to Mental Health\u2014Promoting Mental Health in Adolescents: Pilot Study","volume":"32","author":"Campos","year":"2014","journal-title":"Educ. Health"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"61","DOI":"10.11144\/Javeriana.upsy15-2.dppq","article-title":"Development and Psychometric Properties of a New Questionnaire for Assessing Mental Health Literacy in Young People","volume":"15","author":"Campos","year":"2016","journal-title":"Univ. Psychol."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Campos, L., Dias, P., Duarte, A., Veiga, E., Dias, C.C., and Palha, F. (2018). Is It Possible to \u201cFind Space for Mental Health\u201d in Young People? Effectiveness of a School-Based Mental Health Literacy Promotion Program. Int. J Environ. Res Public Health, 15.","DOI":"10.3390\/ijerph15071426"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"757","DOI":"10.1016\/j.apnu.2018.04.007","article-title":"Mental Health Literacy Levels","volume":"32","author":"Tay","year":"2018","journal-title":"Arch. Psychiatr. Nurs."},{"key":"ref_7","unstructured":"World Health Organization (2021, November 15). Adolescent Health. Available online: www.who.int\/health-topics\/adolescent-health\/#tab=tab_1."},{"key":"ref_8","first-page":"333","article-title":"The Three Stages of Adolescence","volume":"79","author":"Barrett","year":"1996","journal-title":"High Sch. J."},{"key":"ref_9","unstructured":"World Health Organization (2013). Mental Health Action Plan 2013\u20132020, World Health Organization."},{"key":"ref_10","unstructured":"World Health Organization (2019). Seventy-Second World Health Assembly: WHA Decision A72\/76 2019\u2013Fourth Report of Committee A, World Health Organization."},{"key":"ref_11","unstructured":"United Nations (2020). The Sustainable Development Goals Report 2020, United Nations Publications."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"182","DOI":"10.5694\/j.1326-5377.1997.tb140071.x","article-title":"\u201cMental Health Literacy\u201d: A Survey of the Public\u2019s Ability to Recognise Mental Disorders and Their Beliefs about the Effectiveness of Treatment","volume":"166","author":"Jorm","year":"1997","journal-title":"Med. J. Aust."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1037\/a0025957","article-title":"Mental Health Literacy: Empowering the Community to Take Action for Better Mental Health","volume":"67","author":"Jorm","year":"2012","journal-title":"Am. Psychol."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"567","DOI":"10.1007\/s00787-016-0867-9","article-title":"Enhancing Mental Health Literacy in Young People","volume":"25","author":"Kutcher","year":"2016","journal-title":"Eur. Child. Adolesc. Psychiatry"},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Sequeira, C., and Sampaio, F. (2020). Literacia Em Sa\u00fade Mental Na Comunidade. Enfermagem em Sa\u00fade Mental\u2014Diagn\u00f3sticos e Interven\u00e7\u00f5es, Lidel\u2014Edi\u00e7\u00f5es T\u00e9cnicas.","DOI":"10.51234\/aben.20.e04"},{"key":"ref_16","first-page":"1","article-title":"Positive Mental Health Literacy: Development and Validation of a Measure among Norwegian Adolescents","volume":"17","author":"Eilertsen","year":"2017","journal-title":"BMC Public Health"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1177\/1059840517732125","article-title":"The Relationship Between Positive Mental Health Literacy and Mental Well-Being Among Adolescents: Implications for School Health Services","volume":"35","author":"Eilertsen","year":"2019","journal-title":"J. Sch. Nurs."},{"key":"ref_18","unstructured":"Lluch-Canut, T. (1999). Construccion De Una Escala Para Evaluar La Salud Mental Positiva. [Mater\u2019s Thesis, Universidad de Barcelona]."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Sequeira, C., and Sampaio, F. (2020). Sa\u00fade Mental Positiva. Enfermagem em Sa\u00fade Mental\u2014Diagn\u00f3sticos e Interven\u00e7\u00f5es, Lidel\u2014Edi\u00e7\u00f5es T\u00e9cnicas.","DOI":"10.51234\/aben.20.e04"},{"key":"ref_20","unstructured":"Teixeira, S., Sequeira, C., and Lluch-Canut, T. (2020). Programa de Promo\u00e7\u00e3o de Sa\u00fade Mental Positiva Para Adultos (Mentis Plus+): Manual de Apoio, A Sociedade Portuguesa de Enfermagem de Sa\u00fade Mental."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"207","DOI":"10.2307\/3090197","article-title":"The Mental Health Continuum: From Languishing to Flourishing in Life","volume":"43","author":"Keyes","year":"2002","journal-title":"J. Health Soc. Behav."},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Lluch-Canut, T., Puig Llobet, M., S\u00e1nchez-Ortega, A., Rold\u00e1n-Merino, J., Ferr\u00e9-Grau, C., and Positive Mental Health Research Group (2013). Assessing Positive Mental Health in People with Chronic Physical Health Problems: Correlations with Socio-Demographic Variables and Physical Health Status. BMC Public Health, 13.","DOI":"10.1186\/1471-2458-13-928"},{"key":"ref_23","unstructured":"S\u00e1nchez, O.A. (2015). Efectividad de Un Programa de Intervenci\u00f3n Psicosocial Enfermera Para Potenciar La Agencia de Autocuidado y La Salud Mental Positiva En Personas Con Problemas Cr\u00f3nicos de Salud. [Ph.D. Thesis, Universitat de Barcelona]."},{"key":"ref_24","unstructured":"Miguel, M.D. (2014). Valoraci\u00f3n de La Salud Mental Positiva y de Los Requisitos de Autocuidado, En Pacientes Hospitalizados Diagnosticados de Esquizofrenia, Seg\u00fan La Teor\u00eda de Enfermer\u00eda de Dorothea Orem. [Ph.D. Thesis, Universitat de Barcelona]."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1111\/jpm.12358","article-title":"Reliability and Validity of the Positive Mental Health Questionnaire in a Sample of Spanish University Students","volume":"24","author":"Casas","year":"2017","journal-title":"J. Psychiatr. Ment. Health Nurs."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"483","DOI":"10.1177\/1078390319851569","article-title":"Levels of Positive Mental Health in Portuguese and Spanish Nursing Students","volume":"26","author":"Sequeira","year":"2020","journal-title":"J. Am. Psychiatr. Nurses Assoc."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Albacar-Riob\u00f3o, N. (2014). Atenci\u00f3 d\u2019infermeria a La Cuidadora Principal de Persones Amb Esquizofrenia: Valoraci\u00f3 Dels Requisits d\u2019autocura i de La Salut Mental Positiva. [Ph.D. Thesis, Universitat Rovira i Virgili].","DOI":"10.17345\/9788484243618"},{"key":"ref_28","first-page":"32","article-title":"Evaluation of Positive Mental Health and Sense of Coherence in Mental Health Professionals","volume":"13","author":"Mantas","year":"2015","journal-title":"Rev. Port. Enferm. Sa\u00fade Ment."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"38","DOI":"10.3928\/02793695-20170619-06","article-title":"Positive Mental Health and Prevalence of Psychological Ill-Being in University Nursing Professors in Catalonia, Spain","volume":"55","year":"2017","journal-title":"J. Psychosoc. Nurs. Ment. Health Serv."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"1495","DOI":"10.1016\/j.ijsu.2014.07.013","article-title":"The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies","volume":"12","author":"Altman","year":"2014","journal-title":"Int. J. Surg."},{"key":"ref_31","unstructured":"MGH Biostatistics Center (2022, May 10). Power and Sample Size. Available online: http:\/\/hedwig.mgh.harvard.edu\/biostatistics\/support."},{"key":"ref_32","unstructured":"Chaves, C., Sequeira, C., and Duarte, J. (2018). Avalia\u00e7\u00e3o Dos N\u00edveis de Literacia Em Sa\u00fade Mental Positiva Na Comunidade. [Ph.D. Thesis, Universidade do Porto]."},{"key":"ref_33","first-page":"45","article-title":"Avalia\u00e7\u00e3o Das Propriedades Psicom\u00e9tricas Do Question\u00e1rio de Sa\u00fade Mental Positiva Em Estudantes Portugueses Do Ensino Superior","volume":"11","author":"Sequeira","year":"2014","journal-title":"Rev. Port. Enferm. Sa\u00fade Ment."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"e009054","DOI":"10.1136\/bmjopen-2015-009054","article-title":"Assessment of Mental Health Literacy Using a Multifaceted Measure among a Chinese Rural Population","volume":"5","author":"Yu","year":"2015","journal-title":"BMJ Open"},{"key":"ref_35","unstructured":"Alves, S. (2018). Cria\u00e7\u00e3o e Valida\u00e7\u00e3o de Um Programa de Sa\u00fade Mental Positiva Em Adolescentes. [Master\u2019s Thesis, Escola Superior de Enfermagem do Porto]."},{"key":"ref_36","unstructured":"Garcia, I.R. (2016). Sa\u00fade Mental Positiva Em Adolescentes. [Master\u2019s Thesis, Escola Superior de Enfermagem do Porto]."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Teixeira, S., Ferr\u00e9-Grau, C., Canut, T.L., Pires, R., Carvalho, J.C., Ribeiro, I., Sequeira, C., Rodrigues, T., Sampaio, F., and Costa, T. (2022). Positive Mental Health in University Students and Its Relations with Psychological Vulnerability, Mental Health Literacy, and Sociodemographic Characteristics: A Descriptive Correlational Study. Int. J. Environ. Res. Public Health, 19.","DOI":"10.20944\/preprints202202.0167.v1"},{"key":"ref_38","unstructured":"World Health Organization (2010). Participant Manual: IMAI One-Day Orientation on Adolescents Living with HIV, World Health Organization."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"723900","DOI":"10.3389\/fpubh.2021.723900","article-title":"Mental Health Literacy in Zurich: A First Measurement Attempt Using the General HLS-EU-Q47","volume":"9","author":"Schneider","year":"2021","journal-title":"Front. Public Health"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"603","DOI":"10.1007\/s10826-011-9512-x","article-title":"Predictors of Service Utilization Among Youth Diagnosed with Mood Disorders","volume":"21","author":"Mendenhall","year":"2012","journal-title":"J. Child Fam. Stud."},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Guo, C., Tomson, G., Keller, C., and S\u00f6derqvist, F. (2018). Prevalence and Correlates of Positive Mental Health in Chinese Adolescents. BMC Public Health, 18.","DOI":"10.1186\/s12889-018-5133-2"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1549","DOI":"10.5664\/jcsm.6288","article-title":"Consensus Statement of the American Academy of Sleep Medicine on the Recommended Amount of Sleep for Healthy Children: Methodology and Discussion","volume":"12","author":"Paruthi","year":"2016","journal-title":"J. Clin. Sleep Med."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1016\/j.pmedr.2018.10.003","article-title":"Associations between Screen Time and Lower Psychological Well-Being among Children and Adolescents: Evidence from a Population-Based Study","volume":"12","author":"Twenge","year":"2018","journal-title":"Prev. Med. Rep."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"682","DOI":"10.1177\/0956797619830329","article-title":"Screens, Teens, and Psychological Well-Being: Evidence From Three Time-Use-Diary Studies","volume":"30","author":"Orben","year":"2019","journal-title":"Psychol. Sci."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1097\/DBP.0000000000000272","article-title":"Youth Screen Time and Behavioral Health Problems: The Role of Sleep Duration and Disturbances","volume":"37","author":"Parent","year":"2016","journal-title":"J. Dev. Behav. Pediatr."},{"key":"ref_46","unstructured":"World Health Organization (1999). Healthy Living\u2014What Is a Healthy Lifestyle?, WHO."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"632","DOI":"10.1186\/s12889-018-5526-2","article-title":"Lifestyle Choices and Mental Health: A Longitudinal Survey with German and Chinese Students","volume":"18","author":"Velten","year":"2018","journal-title":"BMC Public Health"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"958","DOI":"10.1186\/s12889-020-09102-9","article-title":"The Association of Healthy Lifestyle Behaviors with Mental Health Indicators among Adolescents of Different Family Affluence in Belgium","volume":"20","author":"Maenhout","year":"2020","journal-title":"BMC Public Health"}],"container-title":["International Journal of Environmental Research and Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1660-4601\/19\/13\/8165\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T23:42:20Z","timestamp":1760139740000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1660-4601\/19\/13\/8165"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,7,3]]},"references-count":48,"journal-issue":{"issue":"13","published-online":{"date-parts":[[2022,7]]}},"alternative-id":["ijerph19138165"],"URL":"https:\/\/doi.org\/10.3390\/ijerph19138165","relation":{},"ISSN":["1660-4601"],"issn-type":[{"value":"1660-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,7,3]]}}}