Journal
MEDICAL JOURNAL OF AUSTRALIA
Volume 214, Issue 10, Pages 462-467Publisher
WILEY
DOI: 10.5694/mja2.51043
Keywords
COVID-19; Anxiety disorders; Depressive disorders; Longitudinal studies; Infectious diseases; Respiratory tract infections
Categories
Funding
- College of Health and Medicine at the Australian National University
- National Health and Medical Research Council (NHMRC) fellowship [1158707]
- NHMRC [1122544, 1173146]
- Australian Research Council (ARC) Discovery Early Career Researcher Award (DECRA) fellowship [DE190101382]
- ARC DECRA fellowship [DE180100015]
- National Health and Medical Research Council of Australia [1173146] Funding Source: NHMRC
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This study investigated the levels and trajectories of depression and anxiety symptoms during the early months of the COVID-19 pandemic in Australia. Three trajectories for depression symptoms and four trajectories for anxiety symptoms were identified. Factors such as age, gender, COVID-19-related work and social impairment, financial distress, neurological or mental illness diagnosis, and recent adversity were significantly associated with baseline depression and anxiety scores.
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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