Fig. 3

Distribution of differences between baseline (t0) and t2 values for parenting skills available in baseline questionnaires in the Baby Newsletter and in the control group. Scores are based on a six-item scale, each item has 0–10 values, and the total score ranges from 0 to 60. We also report mean value of the difference in within-groups and difference-in-differences with 95% confidence intervals. * Linear regression of delta score on group adjusted for child’s sex, parents’ age, parity, and education level. (R²: emotion = 0.0880, play = 0.0537, empathy = 0.0357, pressure coping = 0.0326, self-acceptance = 0.0379, learning = 0.0266)