Risk factors for psychological morbidity and the protective role of coping self-efficacy in young women with breast cancer early in diagnosis: a national multicentre cohort study.

PURPOSE: Young women with breast cancer (YWBC) are an understudied population and there are limited data on risk factors for psychological morbidity early in diagnosis. We examined psychological morbidity (anxiety, depression, stress symptoms), well-being and associated risk factors. METHODS: A total of 845 women from a pan-Canadian, multicentre inception cohort study of YWBC (age ≤ 40) who completed Patient Reported Outcome Measures (PROMs) after their initial surgical consultation and prior to surgical or other treatments were included. Multivariate regression analyses identified risk factors (i.e. parenting young children) associated with psychological morbidity and whether coping self-efficacy was protective. RESULTS: Rates of clinically significant anxiety (n = 683, 69.1%) and depression (n = 422, 42.7%) were high but lower for stress symptoms (n = 67, 6.8%). Probability of anxiety was high for women with a previous history of depression (OR 2.02, P = 0.03, CI 1.09-3.74) and working full-time (OR 1.76, P = 0.05 CI 1.02-2.77). Whereas, pre-existing depression (OR 2.91, P = 0.01, CI 1.36-6.01), younger children (age ≤ 10) (OR 1.69, P = 0.05, CI 1.01-2.93), and income > $100,000 (OR 2.06, P = 0.02, CI 1.18-3.64) were risk factors for depression. Coping self-efficacy was protective with a decreased risk of anxiety (OR 0.11, P ≤ 0.01 CI 0.04-0.28), depression (OR 0.03, P ≤ .01, CI 0.01-0.16), stress symptoms (OR 0.17, P ≤ .01, CI 0.04-0.65) and higher psychosocial well-being with a gain of 19.68 points (P < 0.01) for high levels of CSE (> mean plus 1 SD). Those with lower levels of neurosis had less negative outcomes. CONCLUSION: Young women with breast cancer are vulnerable to psychological morbidity early in diagnosis, particularly those with low coping self-efficacy and may benefit from earlier supportive care.