Pearson correlation coefficients at T3 (18 months corrected age) between the PCERA scales, the maternal psychometric means and the individual characteristics of the mothers and infants (n=32)
| PCERA PS1 Maternal positive affective involvement | PCERA PS2 Maternal negative affect and behaviour | PCERA PS3 Maternal intrusiveness, insensitivity and inconsistency | PCERA PS4 Infant positive affect, communicative and social skills | PCERA PS5 Infant quality of play, interest and attention | PCERA PS6 Infant dysregulation and irritability | PCERA PS7 Dyadic mutuality and reciprocity | PCERA PS8 Dyadic disorganisation and tension | |
|---|---|---|---|---|---|---|---|---|
| GHQ Likert sum score | 0.39* | 0.37* | 0.35* | 0.16 | 0.12 | 0.05 | 0.30 | 0.28 |
| GHQ case sum score | 0.36* | 0.36* | 0.06 | 0.12 | 0.07 | 0.17 | 0.26 | 0.31 |
| GHQ case >5 | 0.26 | 0.40* | 0.30 | 0.33 | 0.29 | 0.21 | 0.41* | 0.43* |
| STAI-X2 sum score | 0.46† | 0.21 | 0.39* | 0.09 | −0.03 | 0.08 | 0.25 | 0.19 |
| STAI-X2 case >39 | 0.48* | 0.36* | 0.57† | 0.19 | 0.06 | 0.07 | 0.32 | 0.32 |
| Parity | 0.07 | 0.18 | 0.39* | 0.24 | 0.10 | 0.01 | 0.31 | 0.33 |
| CH<grade 3‡ | −0.21 | −0.28 | −0.35* | −0.20 | −0.23 | −0.15 | −0.30 | −0.35 |
| Apgar at 5 min | −0.01 | 0.09 | 0.20 | 0.22 | 0.35* | −0.12 | 0.18 | 0.19 |
| Bleeding in pregnancy | −0.22 | −0.45† | −0.56† | −0.53† | −0.55† | −0.33 | −0.46† | −0.52† |
| Family size§ | −0.09 | −0.12 | 0.07 | −0.02 | −0.16 | −0.45* | 0.01 | 0.00 |
| Acute caesarean | 0.14 | 0.14 | 0.13 | 0.01 | 0.03 | 0.39* | 0.07 | 0.22 |
| Mean/range¶ (min–max) | 3.8/2.5 (2.3–4.8) | 4.6/1.6 (3.4–5.0) | 4.2/2.0 (3.0–5.0) | 3.2/3.0 (1.9–4.9) | 4.0/2.2 (2.7–4.9) | 4.5/1.3 (3.7–5.0) | 3.3/2.8 (2.0–4.8) | 4.0/2.0 (3.0–5.0) |
Mean values, range scores and minimum and maximum scores for PCERA subscales are reported in the last row of this table.
*Correlation is significant at the 0.05 level (two-tailed).
†Correlation is significant at the 0.01 level (two-tailed).
‡CH<grade 3 refers to cerebral haemorrhage grade 1 or 2 closely after birth.
§Family size refers to the number of children in the family.
¶Rates 1 and 2 in PCERA subscale; ‘area of concern’. Rate 3 in PCERA subscale; ‘area of moderate concern’. Rates 4 and 5 in PCERA subscale; ‘area of no concern’.
CH, cerebral haemorrhage; GHQ, general health questionnaire; PCERA, parent–child early relational assessment; STAI, state/trait anxiety inventory.