Mother–child interactions in adolescents with borderline personality disorder traits and the impact of early life maltreatment

Table 5 Hierarchical linear regression models: adolescent early life maltreatment has no significant additional effect on maternal, adolescent or dyadic behavior

Variables	B	SE	t	p	F(df)	p	R²	∆R²	p∆R²
DV1: maternal behavior pos. IA
Step 1: group	0.549	0.227	2.419	0.018*	5.851(1,71)	0.018*	0.076
Step 2: group	0.403	0.291	1.387	0.170
CTQ adolescent	− 0.117	0.146	− 0.802	0.425	3.233 (2,70)	0.045*	0.085	0.008	0.425
DV2: maternal behavior stress task
Step 1^a: group	0.665	0.222	3.001	0.004**	8.695 (1, 69)	0.004**	0.112
Step 2: group	0.464	0.294	1.582	0.118
CTQ adolescent	− 0.157	0.147	− 1.065	0.290	4.923(2,68)	0.010*	0.126	0.014	0.290
DV3: adolescent behavior pos. IA
Step 1^a: group	0.718	0.215	3.339	0.001**	10.661 (1, 71)	0.002**	0.131
Step 2^a: group	0.409	0.269	1.524	0.132
CTQ adolescent	− 0.249	0.240	− 1.040	0.302	7.096 (2, 70)	0.002**	0.169	0.038	0.078
DV4: adolescent behavior stress task
Step 1^a: group	0.821	0.212	3.879	< 0.001***	14.182(1, 69)	< 0.001***	0.170
Step 2^a: group	0.522	0.251	2.082	0.041*
CTQ adolescent	− 0.234	0.165	− 1.421	0.160	8.651(2, 68)	< 0.001***	0.203	0.032	0.101
DV5: dyadic behavior pos. IA
Step 1^a: group	0.606	0.221	2.743	0.008**	7.261(1, 71)	0.009**	0.093
Step 2: group	0.377	0.286	1.318	0.192
CTQ adolescent	− 0.184	0.144	− 1.280	0.205	4.483(2, 70)	0.015*	0.114	0.021	0.205
DV5: dyadic behavior stress task
Step 1^a: group	0.670	0.223	3.010	0.004**	8.856(1.69)	0.004**	0.114
Step 2: group	0.479	0.293	1.631	0.108
CTQ adolescent	− 0.150	0.147	− 1.018	0.312	4.949(2,68)	0.010*	0.127	0.013	0.312

positive interaction: n_HC-G = 35, n_BPD-G = 38, stress task: n_HC-G = 34, n_BPD-G = 37
DV dependent variable, pos. IA positive interaction, CTQ Childhood Trauma Questionnaire
^aHC4 method for robust standard errors
^*p < 0.05. **p < 0.01. ***p < 0.001

ISSN: 1753-2000