Age Paradox: Depressive Symptomatology For Older Men and Women in Taiwan

Abstract Background: To discern if prevalence of depressive symptoms in adults aged 65 and above in Taiwan changed during the past decade and to identify if protective and risk factors of depressive symptomatology differ by gender. Method: Data of nationally representative older adults (65+) interviewed from the 2005, 2009 and 2013 National Health Interview Survey (NHIS) in Taiwan was analyzed (n=8,832). The Center for Epidemiologic Studies Depression Scale (CES-D) was used for the measurement of depressive symptomatology. Results: Age adjusted prevalence rate of depressive symptomatology among older adults in Taiwan reduced from 20.6% to 13.3% (X2=-7.5, p<.05) in the community. The most significant factors associated with higher depressive symptomatology in both gender was too much carbohydrates intake, which was significantly associated with 8.8 (95%CI=5.1-15.2) and 7.9 (95%CI=5.2-11.8) times depressive symptomatology in men and women respectively. Factors associated with lower depressive symptomatology in both gender include advanced age (over the age of 85), exercise and social participation. The advanced age for men and women reduced about 63% (AOR over the age of 85=0.4, 95%CI=0.2-0.9) and 62% (AOR over the age of 85=0.4, 95%CI=0.2-0.8) of depressive symptomatology for men and women respectively; Exercise reduced about 50% (AOR exercise=0.5, 95%CI=0.3-0.6) and 58% (AOR exercise=0.5, 95%CI=0.3-0.6) of depressive symptomatology for men and women respectively; social participation reduced about 55% (AOR social participation=0.5, 95%CI=0.3-0.7) and 36% (AOR social participation=0.6, 95%CI=0.5-0.9) of depressive symptomatology for men and women respectively.Conclusions: For adults aged over 65, advanced age, which is 85+ for men and 75+ for women, is a significant protective factor guarding against depressive symptoms. Carbohydrates, cognitive disorder, heart disease and falls were associated with higher depressive symptomatology in both gender. The pulmonary disease, underweight and educational level were risk factors for men; metabolic disease and milk intake were risks for women. Common factors associated with lower depressive symptomatology in both gender includes advanced age, exercise and social participation. Tea and coffee intake and married status were associated with lower depressive symptomatology for women.