{"title":"Changes in hair cortisol in a New Zealand community sample during the Covid-19 pandemic","authors":"Elizabeth Broadbent , Urs Nater , Nadine Skoluda , Norina Gasteiger , Ru Jia , Trudie Chalder , Mikaela Law , Kavita Vedhara","doi":"10.1016/j.cpnec.2024.100228","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><p>Evidence suggests that countries with higher Covid-19 infection rates experienced poorer mental health. This study examined whether hair cortisol reduced over time in New Zealand, a country that managed to eliminate the virus in the first year of the pandemic due to an initial strict lockdown.</p></div><div><h3>Methods</h3><p>A longitudinal cohort study assessed self-reported stress, anxiety and depression and collected hair samples that were analyzed for cortisol, across two waves in 2020. The sample consisted of 44 adults who each returned two 3 cm hair samples and completed self-reports. Hair cortisol was assessed per centimetre.</p></div><div><h3>Results</h3><p>Hair cortisol reduced over time (F (5, 99.126) = 10.15, p < .001, partial eta squared = 0.19), as did anxiety and depression. Higher hair cortisol was significantly associated with more negative life events reported at wave two (r = 0.30 segment 1, r = 0.34 segment 2, p < .05), but not anxiety or depression.</p></div><div><h3>Conclusions</h3><p>Strict virus control measures may not only reduce infection rates, but also reduce psychological distress, and hair cortisol over time.</p></div>","PeriodicalId":72656,"journal":{"name":"Comprehensive psychoneuroendocrinology","volume":"17 ","pages":"Article 100228"},"PeriodicalIF":2.1000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666497624000043/pdfft?md5=5f4770a3ccf9ec48c8b5458fde98a977&pid=1-s2.0-S2666497624000043-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comprehensive psychoneuroendocrinology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666497624000043","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENDOCRINOLOGY & METABOLISM","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Evidence suggests that countries with higher Covid-19 infection rates experienced poorer mental health. This study examined whether hair cortisol reduced over time in New Zealand, a country that managed to eliminate the virus in the first year of the pandemic due to an initial strict lockdown.
Methods
A longitudinal cohort study assessed self-reported stress, anxiety and depression and collected hair samples that were analyzed for cortisol, across two waves in 2020. The sample consisted of 44 adults who each returned two 3 cm hair samples and completed self-reports. Hair cortisol was assessed per centimetre.
Results
Hair cortisol reduced over time (F (5, 99.126) = 10.15, p < .001, partial eta squared = 0.19), as did anxiety and depression. Higher hair cortisol was significantly associated with more negative life events reported at wave two (r = 0.30 segment 1, r = 0.34 segment 2, p < .05), but not anxiety or depression.
Conclusions
Strict virus control measures may not only reduce infection rates, but also reduce psychological distress, and hair cortisol over time.