{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T18:49:47Z","timestamp":1785523787534,"version":"3.56.0"},"reference-count":49,"publisher":"Public Library of Science (PLoS)","issue":"7","license":[{"start":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T00:00:00Z","timestamp":1785456000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS One"],"abstract":"<jats:sec id=\"sec001\">\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>An association between personality factors and pain experience has been investigated. However, the direct contributions of personality traits by the Maudsley Personality Inventory to clinical pain outcomes in patients with chronic pain remain unclear. The Maudsley Personality Inventory is a self-report questionnaire used to assess extroversion, neurotic tendencies, and lying or exhibitionistic tendencies. The present study aimed to investigate whether personality traits influenced with the pain-related psychological variables in patients with chronic secondary low back pain (CLBP).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec002\">\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>One hundred fifteen consecutive outpatients with CLBP were included. Personality traits were measured by using the Maudsley Personality Inventory to assess extroversion, neurotic tendencies, and lying or exhibitionistic tendencies. The association of Maudsley neurotic tendency score and pain-related variables was analyzed and then performed a path analysis. Eleven patients (9%) were the biased persons with frequent lying.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec003\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The pain-related variables showed no significant differences between the persons with frequent lying and those with normal. The Maudsley neurotic tendency score was significantly associated with Pain Catastrophizing Scale, Hospital Anxiety and Depression Scale, Pain Self-Efficacy Questionnaire, Athens Insomnia Scale, and EuroQol-5 Dimensions-3 level. The unstandardized coefficients for Maudsley neurotic tendency score were small, compared to pain-Numerical Rating Scale in each outcome.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec004\">\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>These results suggest the presence of neurotic tendency could have an impact on the health outcomes in patients with CLBP, but the impact was small.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1371\/journal.pone.0354827","type":"journal-article","created":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T17:28:22Z","timestamp":1785518902000},"page":"e0354827","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["Personality traits have an effect on pain-related psychological variables in patients with chronic low back pain"],"prefix":"10.1371","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3999-137X","authenticated-orcid":true,"given":"Kazuhiro","family":"Hayashi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9017-413X","authenticated-orcid":true,"given":"Kenji","family":"Miki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yui","family":"Fukushima","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mayuu","family":"Iwai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yukiko","family":"Shiro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomoko","family":"Tetsunaga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshifumi","family":"Takasusuki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8880-5847","authenticated-orcid":true,"given":"Masako","family":"Hosoi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masao","family":"Yukioka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seiji","family":"Okada","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2026,7,31]]},"reference":[{"issue":"9814","key":"pone.0354827.ref001","doi-asserted-by":"crossref","first-page":"482","DOI":"10.1016\/S0140-6736(11)60610-7","article-title":"Non-specific low back pain","volume":"379","author":"F Balagu\u00e9","year":"2012","journal-title":"Lancet"},{"issue":"1","key":"pone.0354827.ref002","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1097\/j.pain.0000000000001384","article-title":"Chronic pain as a symptom or a disease: the IASP Classification of Chronic Pain for the International Classification of Diseases (ICD-11)","volume":"160","author":"R-D Treede","year":"2019","journal-title":"Pain"},{"issue":"10137","key":"pone.0354827.ref003","doi-asserted-by":"crossref","first-page":"2368","DOI":"10.1016\/S0140-6736(18)30489-6","article-title":"Prevention and treatment of low back pain: evidence, challenges, and promising directions","volume":"391","author":"NE Foster","year":"2018","journal-title":"Lancet"},{"key":"pone.0354827.ref004","article-title":"Assessment of Psychosocial and Functional Impact of Chronic Pain","volume":"17","author":"DC Turk","year":"2016","journal-title":"J Pain"},{"issue":"14","key":"pone.0354827.ref005","doi-asserted-by":"crossref","first-page":"2883","DOI":"10.1017\/S0033291716001653","article-title":"Neuroticism\u2019s prospective association with mental disorders halves after adjustment for baseline symptoms and psychiatric history, but the adjusted association hardly decays with time: a meta-analysis on 59 longitudinal\/prospective studies with 443 313 participants","volume":"46","author":"BF Jeronimus","year":"2016","journal-title":"Psychol Med"},{"issue":"5","key":"pone.0354827.ref006","doi-asserted-by":"crossref","first-page":"768","DOI":"10.1037\/a0020327","article-title":"Linking \u201cbig\u201d personality traits to anxiety, depressive, and substance use disorders: a meta-analysis","volume":"136","author":"R Kotov","year":"2010","journal-title":"Psychol Bull"},{"key":"pone.0354827.ref007","volume-title":"Diagnostic and statistical manual of mental disorders: DSM-IV","author":"American Psychiatric Association","year":"1994","edition":"4"},{"key":"pone.0354827.ref008","doi-asserted-by":"crossref","first-page":"58","DOI":"10.1016\/j.sjpain.2017.07.011","article-title":"New evidence for a pain personality? 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