Table 1.

Summary of Participant Demographic, Study, and Intervention Characteristics (N=2,082 participants)

Demographic or characteristic	%	M	SD
Average age of patients		53.8	4.8
White, % of patients		82.6	11.9
Female, % of patients		83.5	27.7
Cancer type, % of studies
Breast	54
Mixed	29
Cervical	4
Head/Neck	4
Prostate	4
Leukemia	4
Melanoma	4
Cancer stage, % of studies
Early	39
Mixed	50
Advanced	11
Treatment setting, % of studies
Inpatient care	14
Outpatient care	86
Type of intervention, % of studies
Cognitive behavioral, cardiovascular exercise, interpersonal,	29
or supportive
Mindfulness, music, yoga, or relaxation	32
Multicomponent	29
Other	14
Follow-up time, weeks from baseline		14.2	18.1
Number of sessions		8.6	7.1
Intervention delivery format, % of studies
In-person	43
Online	4
Telephone	7
Print	4
Self-guided	4
Combined formats	43
Intervention focus, % of studies
Individual	57
Dyad	7
Group	36
Intervention provider, % of studies
Nurse	11
Psychologist	32
Social worker	4
Music therapist	11
Self-guided	11
Other	25
Not reported	7
Type of control group, % of studies
Standard care or wait-list	71
Attention control, education, or other component control	32
Outcome measure, % of studies
PANAS	57
Affect Balance Scale (positive affect subscale)	4
Affectivity Scale (positive affectivity subcale)	4
Differential Emotions Scale (enjoyment, interest, and positive affect subscales)	7
FACIT-Sp (peace subscale)	14
Fordyce Happiness Measure	4
Gratitude Questionnaire	4
Mood Report Form (positive affect subscale)	4
Positive States of Mind Scale	7

NOTES:

Studies missing a participant characteristic are excluded from reported means and standard deviations.

Sum of percentages may exceed 100% because some studies included effects from multiple categories.