Table 1: Demographic data and plasma oxytocin (OT) levels in healthy men (M) and women (W).

Age (years) Plasma OT (pg/mL, mean ± SD)
Total HC (90) 35.0 ± 6.4 2.24 ± 1.99
M (45) 35.1 ± 7.5 1.53 ± 1.18*
F (45) 34.9 ± 6.2 4.53 ± 1.18

Age (years). OT (pg/ml). * significant: p < 0.001.