Table 1. Inclusion criteria and exclusion criteria.

Study characteristics	Inclusion criteria	Exclusion criteria
Study types	• Observational or experimental studies • Peer-reviewed journals • Published in English by February, 2022	• Qualitative, case reports, editorial, letters, comments, doctoral dissertation, and conference proceeding
Populations	• Women with breast cancer • Aged 18 years or older • Undergoing active or completed cancer treatments	• Animal • Adolescence • Child • Infant
Social relationships	• Interactions, connections, and relationships between individuals (e.g., social support, social network, social integration, social ties, relationships with family, caregivers, neighborhoods, and co-workers)	• Social contacts and interactions that are fleeting, incidental, or perceived to have limited significances (e.g., retail employees, time-limited interaction with service providers)
Affective symptoms	• Mood disturbances or fluctuating affective states (e.g., anxiety, depression, mood/psychological disturbances	• Mood disturbances attributed to non-cancer causes such as psychiatric illness.
Cognitive symptoms	• Cognitive impairments or decline	• Cognitive deficits attributed to non-cancer causes such as neurological illness, dementia, stroke, brain injury or delirium
Association between social relationships and affective-cognitive symptoms		• Studies that did not assess the association between social relationships and patients’ affective-cognitive symptom