Table 1.

List of the papers included in the review by themes discussed

Title	Reference	Year of publication	Prevalence of PTSD in breast cancer	Associated sociodemographic and comorbidity risk factors	Potential links and proposed mechanisms by which stress impacts cancer risk	Role of predicting factors for early diagnosis/prevention of PTSD	Implications for co-treatment	Overall rating of the quality of papers**
Post-traumatic stress disorder after cancer diagnosis in adults: a meta-analysis	Swartzman et al3	2017	X	X				–
PTSD symptoms as a consequence of breast cancer diagnosis: clinical implications	Arnaboldi et al4	2014		X				Moderate
Post-traumatic stress symptoms in breast cancer patients: temporal evolution, predictors, and mediation	Perez et al5	2014		X		X		Moderate
Post-traumatic stress disorder following cancer. A conceptual and empirical review	Kangas et al6	2002						–
Distress, psychiatric syndromes, and impairment of function in women with newly diagnosed breast cancer	Hegel et al8	2006	X				X	High
Prevalence of acute and post-traumatic stress disorder and comorbid mental disorders in breast cancer patients during primary cancer care: a prospective study	Mehnert and Koch9	2007	X	X				High
PTSD diagnosis, subsyndromal symptoms, and comorbidities contribute to impairment for breast cancer survivors	Shelby et al10	2008	X	X			X	Moderate
Racial disparities in post-traumatic stress after diagnosis of localized breast cancer: the BQUAL study	Vin-Raviv et al11	2013	X	X				High
Psychological adjustment 1 year after the diagnosis of breast cancer: a prototype study of delayed post-traumatic stress disorder	Elklit and Blum13	2011	X	X				High
How traumatic is breast cancer? Post-traumatic stress symptoms (PTSS) and risk factors for severe PTSS at 3 and 15 months after surgery in a nationwide cohort of Danish women treated for primary breast cancer	O’Connor et al12	2011	X					High
Post-traumatic stress in women with breast cancer	Alkhyatt et al14	2012	X	X				Moderate
Prevalence of post-traumatic stress disorder among breast cancer patients: a meta-analysis	Wu et al15	2016	X	X				–
Post-traumatic stress disorder associated with cancer diagnosis and treatment	Andrykowski et al17	2010	X	X		X		–
Post-traumatic stress disorder and cancer risk: a nationwide cohort study	Gradus et al18	2015			X	X		High
Stressful life events and risk of breast cancer in 10,808 women: a cohort study	Lillberg et al19	2003			X	X		High
Stress and breast cancer: from epidemiology to molecular biology	Antinova et al20	2011			X			–
Do stress-related psychosocial factors contribute to cancer incidence and survival?	Chida et al21	2008			X	X		High
Status of oral ulcerative mucositis and biomarkers to monitor post-traumatic stress disorder effects in breast cancer patients	Loo et al22	2013				X		Moderate
Cancer and post-traumatic stress disorder: diagnosis, pathogenesis, and treatment considerations	Rustad et al23	2012				X		–
Correlates of post-traumatic stress symptoms and growth in cancer patients: a systematic review and meta-analysis	Shand et al24	2015	X			X		–
Post-traumatic stress symptoms in cancer survivors: relationship to the impact of cancer scale and other associated risk factors	Hahn et al16	2015		X				Moderate
Elucidating pretreatment cognitive impairment in breast cancer patients: the impact of cancer-related post-traumatic stress	Hermelink et al25	2015					X	High
Perceived cognitive impairment in Chinese patients with breast cancer and its relationship with post-traumatic stress disorder symptoms and fatigue	Li et al26	2015					X	Moderate

Notes:

^**Only for randomized controlled trial and cohort studies. The “–” symbols indicate that the paper was not evaluated for quality.

Abbreviation: PTSD, post-traumatic stress disorder.