title: Change in subjective age among the elderly: a longitudinal analysis.
mesh_terms: D000367:Age Factors; D000368:Aged / Q000523:psychology*; D003430:Cross-Sectional Studies; D004522:Educational Status; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008393:Marriage; D008875:Middle Aged; D012649:Self Concept; D012959:Socioeconomic Factors