Table 2.
Group means and differences in plasma OXT values
| Controls n = 30 | ASD n = 31 | Group differences | |||
|---|---|---|---|---|---|
| Mean (sd) | Mean (sd) | t (df) | p | d | |
| OXTa before PLb | 0.66 (0.93) | 1.50 (2.07) | −1.96 (59) | .05 | 0.39 |
| OXT after PLb | 0.80 (1.33) | 0.83 (0.95) | −0.89 (59) | >.1 | 0.23 |
| OXT before OXTc | 0.67 (0.94) | 1.32 (1.67) | −2.37 (59) | .02 | 0.47 |
| OXT after OXTc | 9.88 (6.34) | 9.60 (5.04) | 0.19 (57)d | >.1 | 0.05 |
| BLOXT | 0.67 (0.77) | 1.34 (1.05) | −2.85 (59) | .006 | 0.73 |
| ΔOXT | 9.20 (6.10) | 8.22 (5.11) | 0.67 (57)d | >.1 | 0.17 |
aPlasma OXT measured in pmol/l
b, cPlacebo/OXT administration
dThere were two missing values in the ASD group
BLOXT: mean value of OXT concentrations before placebo and oxytocin administration. ΔOXT: OXT after OXTc minus OXT before OXTc