OBJECTIVES: This study aimed to examine how social activity (SA) moderates the relationship between age norms (AN) and subjective health status (SHS) among older adults in Korea. Based on the theories of age-integrated structure and active aging, the proposed hypotheses were that SHS has a positive association with attitudes towards AN, and with the interactions between different types of AN and SA. METHODS: Cross-sectional data from a Korean national survey of older adults were analyzed. Participants were older adults N = 10,451, of whom 10,280 were used in the study sample. Multivariate linear regression including interaction terms, was used to examine the associations among SHS, AN, and SA. RESULTS: The results of multivariate linear regression examining learning (ß = 0.066, p < 0.001), working (ß = 0.063, p < 0.001), and remarriage (ß = 0.036, p < 0.001) showed that those who perceived AN more positively, were more likely to have a high SHS. With interaction terms, those who had a positive attitude towards AN for learning and volunteering (ß = 0.025, p < 0.05), and remarriage and engaged in friendship groups (ß = 0.032, p < 0.05) were more likely to have a high SHS. CONCLUSION: SA serves as a great moderator between AN and SHS.
Adult ; Aging ; Diagnostic Self Evaluation ; Friends ; Humans ; Korea ; Learning ; Linear Models ; Marriage

PURPOSE: Arterial hypotension after return of spontaneous circulation (ROSC) from out of hospital cardiac arrest (OHCA) occurs frequently. However, few studies have described post-ROSC hypotension and the relationship with outcome in OHCA. This study aimed to find the prevalence of post-ROSC hypotension and to determine whether post-ROSC hypotension predicts outcome in OHCA. METHODS: This was a retrospective cohort study of patients with ROSC (>20 minutes) after OHCA and who were admitted to the emergency department in a tertiary hospital from July, 2005 to June, 2009. Patients' baseline characteristics, presence of arterial hypotension (<90 mmHg), mortality, and neurologic outcome were evaluated. Mortality rates were compared and multivariate logistic regression was used to determine if post-ROSC hypotension independently predicted death. RESULTS: One hundred forty seven patients (93 males) were studied. Post-ROSC hypotension occurred in 108(73%) patients and was associated with significantly higher mortality compared to non-exposure (82% vs. 44% p<0.001). In multivariate logistic regression analysis, post-ROSC hypotension (OR 4.4 [95% CI]) and non-cardiogenic causes (OR 19.7 [95% CI]) were independent predictors of death. CONCLUSION: Post-ROSC hypotension is common and can be an independent predictor of death in OHCA.
Cohort Studies ; Emergencies ; Heart Arrest ; Humans ; Hypotension ; Logistic Models ; Out-of-Hospital Cardiac Arrest ; Prevalence ; Resuscitation ; Retrospective Studies ; Tertiary Care Centers