Changes in hair cortisol in a New Zealand community sample during the Covid-19 pandemic

IF 2.5 Q3 ENDOCRINOLOGY & METABOLISM Comprehensive psychoneuroendocrinology Pub Date : 2024-02-01 DOI:10.1016/j.cpnec.2024.100228

Elizabeth Broadbent , Urs Nater , Nadine Skoluda , Norina Gasteiger , Ru Jia , Trudie Chalder , Mikaela Law , Kavita Vedhara

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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.

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Covid-19 大流行期间新西兰社区样本毛发皮质醇的变化

背景有证据表明，Covid-19 感染率较高的国家的精神健康状况较差。这项研究考察了新西兰的毛发皮质醇是否会随着时间的推移而减少，该国由于最初的严格封锁，在病毒大流行的第一年就成功地消灭了病毒。方法一项纵向队列研究评估了自我报告的压力、焦虑和抑郁情况，并收集了毛发样本，分析了皮质醇，研究跨越了 2020 年的两波。样本由 44 名成年人组成，他们每人采集了两根 3 厘米长的头发样本，并完成了自我报告。结果头发皮质醇随着时间的推移而降低（F (5, 99.126) = 10.15, p < .001, partial eta squared = 0.19），焦虑和抑郁也是如此。头发皮质醇较高与第二波时报告的负面生活事件较多有明显关联（r = 0.30 segment 1，r = 0.34 segment 2，p < .05），但与焦虑或抑郁无关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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