{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,27]],"date-time":"2026-06-27T04:28:46Z","timestamp":1782534526316,"version":"3.54.5"},"reference-count":20,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2008,3,31]],"date-time":"2008-03-31T00:00:00Z","timestamp":1206921600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"US National Institute on Aging","award":["NIA-P01-AG08761I"],"award-info":[{"award-number":["NIA-P01-AG08761I"]}]},{"name":"BMBF Kompetenznetz Parkinson (KNP)"},{"name":"The northern German cross-sectional study (PopGen ET)"},{"name":"BMBF National Genome Research Network (NGFN)"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Movement Disorders"],"published-print":{"date-parts":[[2008,5,15]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>To evaluate a screening instrument for essential tremor (ET) consisting of a seven\u2010item questionnaire and a spiral drawing. A total of 2,448 Danish twins aged 70 years or more and a second sample aged 60 years or more (n = 1,684) from a population\u2010based northern German cross\u2010sectional study (PopGen ET) were screened for ET. Inclusion criteria were a previous diagnosis of ET, a positive answer to two or more questions of the questionnaire or a spiral rating &gt;4 (range of scale 0\u20139). Three hundred thirteen of 380 positively screened and 321 negatively screened subjects were clinically examined. Definite or probable ET was diagnosed in 104 patients, possible in 86 and other tremors in 98 patients. The sensitivity of the screening instrument was 70.5%, the positive predictive value was 64.9%, the specificity was 68.2%, and the negative predictive value was 73.5%. Tremor severity correlated significantly with higher spiral scores and more positive items. More patients were identified by spiral drawing in all tremor groups. The interrater and intrarater reliability for spirals ranged from 0.7 to 0.8 using intraclass coefficient. A cluster analysis revealed that the questionnaire can be reduced to three items, about uncontrollable tremor in any body part, tremor while drinking or pouring and other family members with tremor, without loosing efficacy. We present an easy to use and reliable screening instrument that is effective to identify patients with ET but not able to exclude patients with other tremor forms. \u00a9 2008 Movement Disorder Society<\/jats:p>","DOI":"10.1002\/mds.22010","type":"journal-article","created":{"date-parts":[[2008,3,31]],"date-time":"2008-03-31T19:17:11Z","timestamp":1206991031000},"page":"1006-1012","source":"Crossref","is-referenced-by-count":29,"title":["Evaluation of a screening instrument for essential tremor"],"prefix":"10.1002","volume":"23","author":[{"given":"Delia","family":"Lorenz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frank","family":"Papengut","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henrik","family":"Frederiksen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Florian","family":"Kopper","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephan","family":"Klebe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaare","family":"Christensen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Schreiber","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G\u00fcnther","family":"Deuschl","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2008,3,31]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.56.8.868"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1177\/089826439901100103"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1159\/000090694"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.50.5.1351"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1212\/01.WNL.0000103236.26934.41"},{"key":"e_1_2_6_7_2","first-page":"271","volume-title":"Parkinson's disease and movement disorders","author":"Fahn S","year":"1993"},{"issue":"3","key":"e_1_2_6_8_2","first-page":"2","article-title":"Consensus statement of the movement disorder society on tremor. 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