Trajectories of depression and anxiety symptoms during the COVID‐19 pandemic in a representative Australian adult cohort

Objectives To estimate initial levels of symptoms of depression and anxiety, and their changes during the early months of the COVID‐19 pandemic in Australia; to identify trajectories of symptoms of depression and anxiety; to identify factors associated with these trajectories. Design, setting, parti...

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Published in:Medical journal of Australia Vol. 214; no. 10; pp. 462 - 468
Main Authors: Batterham, Philip J, Calear, Alison L, McCallum, Sonia M, Morse, Alyssa R, Banfield, Michelle, Farrer, Louise M, Gulliver, Amelia, Cherbuin, Nicolas, Rodney Harris, Rachael M, Shou, Yiyun, Dawel, Amy
Format: Journal Article
Language:English
Published: Australia John Wiley and Sons Inc 01.06.2021
Subjects:
Anxiety disorders
COVID‐19
Depressive disorders
Epidemiology and Research Design
Infectious Diseases
Longitudinal studies
Mental Disorders
Research and Reviews
Respiratory tract infections
Statistics
COVID-19
Respiratory tract infections
Longitudinal studies
Infectious diseases
Anxiety disorders
Depressive disorders
ISSN:0025-729X, 1326-5377, 1326-5377
Online Access:Get full text
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Summary:Objectives To estimate initial levels of symptoms of depression and anxiety, and their changes during the early months of the COVID‐19 pandemic in Australia; to identify trajectories of symptoms of depression and anxiety; to identify factors associated with these trajectories. Design, setting, participants Longitudinal cohort study; seven fortnightly online surveys of a representative sample of 1296 Australian adults from the beginning of COVID‐19‐related restrictions in late March 2020 to mid‐June 2020. Main outcome measures Symptoms of depression and anxiety, measured with the Patient Health Questionnaire (PHQ‐9) depression and Generalised Anxiety Disorder (GAD‐7) scales; trajectories of symptom change. Results Younger age, being female, greater COVID‐19‐related work and social impairment, COVID‐19‐related financial distress, having a neurological or mental illness diagnosis, and recent adversity were each significantly associated with higher baseline depression and anxiety scores. Growth mixture models identified three latent trajectories for depression symptoms (low throughout the study, 81% of participants; moderate throughout the study, 10%; initially severe then declining, 9%) and four for anxiety symptoms (low throughout the study, 77%; initially moderate then increasing, 10%; initially moderate then declining, 5%; initially mild then increasing before again declining, 8%). Factors statistically associated with not having a low symptom trajectory included mental disorder diagnoses, COVID‐19‐related financial distress and social and work impairment, and bushfire exposure. Conclusion Our longitudinal data enabled identification of distinct symptom trajectories during the first three months of the COVID‐19 pandemic in Australia. Early intervention to ensure that vulnerable people are clinically and socially supported during a pandemic should be a priority.
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ISSN:0025-729X
1326-5377
1326-5377
DOI:10.5694/mja2.51043