Prevalence and predictors of the short-term trajectory of anxiety and depression in the first year after a cancer diagnosis: a population-based longitudinal study.

Abstract

Few studies have examined psychological adjustment for cancer survivors in late treatment and early survivorship stages. Our study investigated the prevalence and short-term trajectories of anxiety, depression, and comorbid anxiety-depression among adult cancer survivors, and identified the individual, disease, health behavior, psychological, and social predictors of chronic and late psychological morbidity. A heterogeneous sample of adult cancer survivors was recruited from two state-based cancer registries. A total of 1,154 survivors completed self-report questionnaires at 6 (Time 1) and 12 months (Time 2) postdiagnosis. Anxiety and depression were assessed by the Hospital Anxiety and Depression Scale with cases identified by a subscale cutoff score ≥ 8. Logistic regression analyses identified Time 1 characteristics associated with anxiety and/or depression at Time 2. The point prevalence of anxiety (Time 1, 22%; Time 2, 21%), depression (13% at both timepoints) and comorbid anxiety-depression (9% at both timepoints) was similar at 6 and 12 months postdiagnosis. The most prevalent Time 1 to Time 2 trajectory was noncase for anxiety (70%), depression (82%), and comorbid anxiety-depression (87%). While psychological morbidity at Time 1 was the strongest predictor of psychological morbidity at Time 2, being diagnosed with lung cancer and health risk behaviors (smoking, insufficient physical activity) were also strong predictors. Targeted psychological screening of vulnerable survivors and early intervention may prevent the onset and/or reduce the severity of psychological morbidity in early survivorship. Trials of risk reduction interventions targeting psychological functioning and health risk behaviors seem warranted.