Table 3.

Risk factors for visual impairment* (n=73) in univariate logistic regression

Birth characteristics	OR	95% CI	P value
Gestational age, weeks	0.576	0.337 to 0.987	0.045
Birth weight, g	1.000	0.997 to 1.003	0.927
Birth weight SDS, SD	1.175	0.902 to 1.531	0.231
Sex, boys	1.583	0.931 to 2.691	0.090
Co-morbidities
Bronchopulmonary dysplasia	1.904	0.768 to 4.718	0.164
Necrotising enterocolitis	1.106	0.596 to 2.052	0.750
Any ROP	1.944	0.561 to 6.735	0.224
ROP treatment	2.244	1.311 to 3.842	0.003

*Referred to low vision clinic at any age and/or visual acuity <20/60 if 3.5 years and older at the latest ophthalmological examination.

ROP, retinopathy of prematurity; SDS, SD score.