Table 1 Characteristics of infants included in each study arm.

From: Effect of a light-darkness cycle on the body weight gain of preterm infants admitted to the neonatal intensive care unit

Variable

LL group (n = 144)

LD group (n = 150)

P-value

Gestational age (weeks)

32.5 ± 0.1

32.4 ± 0.2

0.633

Birth weight

1629.79 ± 31.2

1655.9 ± 26.2

0.729

Daily average heart rate

150.9 ± 0.46

149.9 ± 0.73

0.230

Daily average respiratory rate

55.7 ± 0.16

55.9 ± 0.22

0.406

Daily average temperature

37.05 ± 0.01

37.02 ± 0.02

0.311

Age at hospital discharge (week)

37.3 ± 0.2

35.8 ± 0.2

0.0001

Weight at hospital discharge

2168.9 ± 28.1

2242.08 ± 28.8

0.172

  1. Significant values are in [bold].
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