{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T01:53:04Z","timestamp":1792806784934,"version":"4.5.0"},"reference-count":25,"publisher":"Scientific Scholar","license":[{"start":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T00:00:00Z","timestamp":1623715200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["ruralneuropractice.com"],"crossmark-restriction":true},"short-container-title":["JNRP"],"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:p>\n<jats:bold>Objectives<\/jats:bold>\u2003A tension headache is the most common type of headache, and its causes are multifactorial. A relationship has been shown between migraine headaches and neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and C-reactive protein (CRP). In this study, we investigated the NLR, PLR, and serum CRP levels in frequent episodic tension-type headache (FETTH) and chronic tension-type headache (CTTH) patients.<\/jats:p>\n<jats:p>\n<jats:bold>Materials and Methods<\/jats:bold>\u2003This retrospective study included 64 patients with FETTH, 80 patients with CTTH, and 60 healthy controls who were followed up in the neurology clinic. Hematological parameters were compared between the patient and control groups.<\/jats:p>\n<jats:p>\n<jats:bold>Results<\/jats:bold>\u2003In CTTH patients, platelets, NLR, PLR, and CRP values were statistically higher than in FETTH patients and patients in the control group. In FETTH patients, the PLR value was higher than in patients in the control group, but there was no statistically significant difference in NLR and CRP values between FETTH patients and patients in the control group. Also, there was no correlation between these values and age and gender.<\/jats:p>\n<jats:p>\n<jats:bold>Conclusion<\/jats:bold>\u2003Increase platelet count might have an effect on tension-type headache pathophysiology. Systemic inflammation parameters were shown to be significantly higher in CTTH patients. More comprehensive studies are needed to evaluate the effect of systemic inflammation on the chronicity of tension headaches.<\/jats:p>","DOI":"10.1055\/s-0041-1730124","type":"journal-article","created":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T22:56:19Z","timestamp":1623797779000},"page":"566-570","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Evaluation of Neutrophil-to-Lymphocyte Ratio, Platelet-to-Lymphocyte Ratio, and C-Reactive Protein in Tension-Type Headache Patients"],"prefix":"10.25259","volume":"12","author":[{"given":"Hasan H\u00fcseyin","family":"\u00d6zdemir","sequence":"first","affiliation":[{"name":"Department of Neurology, A Hospital, \u0130stanbul, Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahmet","family":"D\u00f6nder","sequence":"additional","affiliation":[{"name":"Department of Medical Laboratory, Vocational School of Health Services, Mardin Artuklu 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