The potential benefits and harms of different lighting in neonatal units have not been quantified.To compare the effectiveness of cycled lighting (CL) (approximately 12 hours of light on and 12 hours of light off) with irregularly dimmed light or near darkness (ND) and with continuous bright light (CBL) on growth in preterm infants at three and six months of age.Electronic searches of the literature were conducted (in May 2010) of the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library), MEDLINE, EMBASE, CINAHL and abstracts from Pediatric Academic Societies' annual meetings.Randomised or quasi-randomised trials of CL versus ND or CBL in preterm and low birth weight infants.Data collection and analyses were performed according to the methods of the Cochrane Neonatal Review Group.Five studies enrolling 387 infants compared CL to ND. No study reported on weight at three or six months. In one study (n = 40) there was no statistically significant difference in weight at four months between the CL and the ND groups. In another study (n = 62) the ratio of day-night activity prior to discharge favoured the CL group (mean difference 0.18, 95
作者:Iris, Morag;Arne, Ohlsson
来源:The Cochrane database of systematic reviews 2011 年 1期