This study examined the relationship of depression and life satisfaction with suicidal ideation among older Iranian adults. In this cross-sectional study, a total of 159 older adults in Tehran (73% community-residing, 60 years or older) participated. The data were gathered using the Beck Scale for Suicidal Ideation (BSSI), the Geriatric Depression Scale (GDS), and the Life Satisfaction Index-Z (LSIZ). According to the results, depression and life satisfaction are significantly related to suicidal ideation; the two variables predict 0.39% of the variance of suicidal ideation in older adults (p < .01). The interaction between depression and life satisfaction is a stronger predictor of suicidal ideation in older adults than each of the variables alone
