Randomized controlled study of the effects of different durations of light exposure on weight gain by preterm infants in a neonatal intensive care unit

N. Y. Boo, S. C. Chee, Rohana Jaafar

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17 Citations (Scopus)

Abstract

A randomized controlled study was carried out on 96 preterm infants (<37 wk) with birthweight less than 2000 g admitted to a neonatal intensive care unit. The aim was to compare the weight gain between preterm infants exposed to 12 h cyclical lighting (intensity of light: 78.4 ± 24.7 lux, mean ± SD) and those exposed to a continuously dim environment (5.9 ± 1.9 lux). The exclusion criteria were infants with major congenital malformations or who needed continuous lighting for treatment procedure and care. From day 7 of life until discharge, 50 infants were randomized to receive 12 h cyclical lighting and 46 infants to a continuously dim environment. There was no significant difference in the mean birthweight (12 h lighting vs continuously dim: 1482 vs 1465 g, p = 0.8), mean gestational age (31.6 vs 31.4 wk, p = 0.6), median duration of hospital stay (28.5 vs 28.5 d, p = 0.8), mean age to regain birthweight (13.0 vs 12.9 d, p = 0.3), mean weight gained by day 14 (27.6 vs 36.2 g, p = 1.0), median weight gain per day (11.9 vs 12.2g, p = 0.9) or median body weight on discharge (1800 vs 1800g, p = 0.4) between the two groups of infants. Conclusion: Exposing preterm infants to either 12h cyclical lighting or continuously dim environment did not have any significant effect on their weight gain during the neonatal period.

Original languageEnglish
Pages (from-to)674-679
Number of pages6
JournalActa Paediatrica, International Journal of Paediatrics
Volume91
Issue number6
DOIs
Publication statusPublished - 2002

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Neonatal Intensive Care Units
Lighting
Premature Infants
Weight Gain
Light
Gestational Age
Length of Stay
Body Weight
Weights and Measures

Keywords

  • Dim environment
  • Preterm infants
  • Weight gain

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

Cite this

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abstract = "A randomized controlled study was carried out on 96 preterm infants (<37 wk) with birthweight less than 2000 g admitted to a neonatal intensive care unit. The aim was to compare the weight gain between preterm infants exposed to 12 h cyclical lighting (intensity of light: 78.4 ± 24.7 lux, mean ± SD) and those exposed to a continuously dim environment (5.9 ± 1.9 lux). The exclusion criteria were infants with major congenital malformations or who needed continuous lighting for treatment procedure and care. From day 7 of life until discharge, 50 infants were randomized to receive 12 h cyclical lighting and 46 infants to a continuously dim environment. There was no significant difference in the mean birthweight (12 h lighting vs continuously dim: 1482 vs 1465 g, p = 0.8), mean gestational age (31.6 vs 31.4 wk, p = 0.6), median duration of hospital stay (28.5 vs 28.5 d, p = 0.8), mean age to regain birthweight (13.0 vs 12.9 d, p = 0.3), mean weight gained by day 14 (27.6 vs 36.2 g, p = 1.0), median weight gain per day (11.9 vs 12.2g, p = 0.9) or median body weight on discharge (1800 vs 1800g, p = 0.4) between the two groups of infants. Conclusion: Exposing preterm infants to either 12h cyclical lighting or continuously dim environment did not have any significant effect on their weight gain during the neonatal period.",
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N2 - A randomized controlled study was carried out on 96 preterm infants (<37 wk) with birthweight less than 2000 g admitted to a neonatal intensive care unit. The aim was to compare the weight gain between preterm infants exposed to 12 h cyclical lighting (intensity of light: 78.4 ± 24.7 lux, mean ± SD) and those exposed to a continuously dim environment (5.9 ± 1.9 lux). The exclusion criteria were infants with major congenital malformations or who needed continuous lighting for treatment procedure and care. From day 7 of life until discharge, 50 infants were randomized to receive 12 h cyclical lighting and 46 infants to a continuously dim environment. There was no significant difference in the mean birthweight (12 h lighting vs continuously dim: 1482 vs 1465 g, p = 0.8), mean gestational age (31.6 vs 31.4 wk, p = 0.6), median duration of hospital stay (28.5 vs 28.5 d, p = 0.8), mean age to regain birthweight (13.0 vs 12.9 d, p = 0.3), mean weight gained by day 14 (27.6 vs 36.2 g, p = 1.0), median weight gain per day (11.9 vs 12.2g, p = 0.9) or median body weight on discharge (1800 vs 1800g, p = 0.4) between the two groups of infants. Conclusion: Exposing preterm infants to either 12h cyclical lighting or continuously dim environment did not have any significant effect on their weight gain during the neonatal period.

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