Relationship between respiratory mortality and self-perceptions of aging

Although there is growing evidence that psychological factors affect an individual's susceptibility to respiratory illnesses, psychological predictors of respiratory mortality have received little attention. This study investigated whether an age-specific psychological factor, older individuals' beliefs about their own aging, predicted the likelihood of their dying from respiratory causes (ICD-9: 460–519). The sample was composed of 620 individuals, aged 50–87 years at baseline, who participated in a longitudinal study with six waves. Our research found that individuals with higher baseline positive self-perceptions of aging were significantly less likely to die of respiratory causes over the next 23 years, after controlling for age, functional health, gender, loneliness, marital status, self-rated health, and socioeconomic status (hazard ratio=0.695; p <0.005). This is the first study to link individual beliefs about aging to cause-specific mortality. Future research is warranted to further elucidate the relationship between self-perceptions of aging and resistance to respiratory mortality.