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Association between age and DST values. DST: dexamethasone suppression test; DST levels increased by age: mean levels by groups were the following: <50 yo (1.0 ± 0.32 µg/dL), 50–60 yo (1.1 ± 0.38 µg/dL), 60–70 yo (1.2 ± 0.36 µg/dL), 70–80 yo (1.2 ± 0.37 µg/dL) and >80 yo (1.2 ± 0.43 µg/dL).
