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Table 1 Means and standard deviations of behavior dyads (psychological stress groups and HPA axis activity groups)

From: Impact of prenatal stress on mother-infant dyadic behavior during the still-face paradigm

  IposMpos dyad IproMpos dyad IproMneg dyad
Psychological PS (n = 164) FFE RE FFE RE FFE RE
M (SD) M (SD) M (SD) M (SD) M (SD) M (SD)
Psychopathological PS H: 6.13 (4.53) H: 3.85 (3.76) H: 1.30 (3.14) H: 6.54 (10.16) H: 0.43 (1.64) H: 2.30 (4.78)
L: 4.13 (4.68) L: 3.82 (4.30) L: 1.92 (4.27) L: 5.97 (8.86) L: 0.39 (1.32) L: 1.74 (3.44)
Perceived PS H: 6.42 (4.58) H: 4.10 (3.64) H: 1.01 (2.68) H: 6.03 (9.10) H: 0.42 (1.64) H: 2.40 (4.81)
L: 4.50 (4.57) L: 3.58 (4.38) L: 2.21 (4.51) L: 6.49 (9.99) L: 0.40 (1.36) L: 1.64 (3.40)
Psychosocial PS H: 6.76 (4.60) H: 3.96 (3.81) H: 0.93 (2.47) H: 6.08 (10.16) H: 0.36 (1.51) H: 2.44 (5.05)
L: 4.15 (4.32) L: 3.72 (4.25) L: 2.29 (4.60) L: 6.43 (8.87) L: 0.47 (1.47) L: 1.60 (3.01)
HPA axis activity (n = 134)
Cortisol decline F: 5.77 (4.38) F: 3.76 (3.89) F: 1.54 (3.82) F: 6.59 (9.23) F: 0.58 (1.91) F: 2.54 (3.99)
S: 5.13 (4.67) S: 3.90 (4.19) S: 1.56 (3.63) S: 5.49 (8.86) S: 0.37 (1.30) S:1.29 (3.18)
AUCg H: 6.03 (5.28) H: 4.31 (4.31) H: 1.59 (3.69) H: 5.62 (9.32) H: 0.42 (1.37) H: 1.37 (2.99)
L: 5.02 (3.64) L: 3.54 (3.93) L: 1.58 (3.83) L: 6.24 (8.59) L: 0.55 (1.89) L: 2.51 (4.21)
  1. Abbreviations: IposMpos: Infant positive-mother positive; IproMpos: Infant protesting-mother positive; IproMneg: Infant protesting-mother negative, FFE: face-to-face/ play episode; RE: Reunion episode; M: mean, SD: standard deviation, F: flat decline, S: steep decline, AUCg: area under the curve with respect to ground