Long-term risk of mental health problems in women experiencing preterm birth: a longitudinal study of 29 mothers

Table 4 Multiple linear regression analyses predicting maternal mental health outcomes following preterm birth

Dependent variable	Independent variable	B	95% CI	Beta	p value	R ² _adj
IES	Preeclampsia	5.75	(1.22, 10.27)	0.37	0.015
	IVH^a	11.34	(3.17, 19.50)	0.39	0.008
	Mother's age	0.91	(0.18, 1.64)	0.36	0.016	0.41
GHQ Likert	Bleeding in pregnancy	−7.57	(−12.55, −2.59)	−0.44	0.004
	Previous psychological treatment	13.79	(3.45, 24.13)	0.39	0.011	0.42
STAI-X1^b	Maternal trait anxiety	0.23	(0.10, 0.36)	0.56	0.001	0.29

The mean of mental health outcomes assessed by IES, GHQ and STAI-X1 at the infant's 6- and 18-month post-term ages was used as outcome. Unstandardized (B) and standardized (beta) regression coefficients from multiple linear regression analyses after forward stepwise variable selection are reported. N = 33. ^aThe child was struck by intraventricular haemorrhage grade 1 or 2 shortly after birth; ^bTen-question version of STAI-X1.

ISSN: 1744-859X